Re: [Elecraft] [OT] A dumb question about lightning
I have the first edition of the ARRL book. What is significant about the second edition that is different from the earlier edition? Russ, N3CO Sent from Yahoo Mail on Android On Fri, Jul 28, 2023 at 7:14 PM, Jim Brown wrote: On 7/28/2023 1:31 PM, Al Lorona wrote: > Please don't laugh at me; I'm a transplant from a region of the country with > essentially no lightning to a region where you have to worry about it quite a > bit. The answer is, as KK9A said, to follow proper grounding and bonding to the letter. N0AX's ARRL Book on the topic, to which I contributed, is excellent. You want the Second Edition, published about a year ago. The book also references the slide deck for my tutorial talks. Don't let "audio" in the link fool you -- it's all about grounding and bonding in the shack for lightning protection and to minimize RFI. http://k9yc.com/GroundingAndAudio.pdf On 7/28/2023 3:04 PM, Keith Trinity WE6R wrote: > Please, PLEASE disconnect your COMPUTER from your radio(s) if lightning > is in the area! > > Almost ALWAYS lightning damaged gear that comes in for repair, was hit > _thru the comm port!_ > (lightning hits Cable/DSL lines). This is the result of failure to follow proper grounding and bonding, and the failure of equipment mfrs to properly bond cable shields to the chassis at the point of entry. That failure to common to all ham mfrs, including Elecraft. This construction error was first addressed in 1994 by a ham working in pro audio, Neil Muncy, ex-W3WJE (SK), and he called it "The Pin One Problem," because Pin 1 of the XLR connectors used to carry balanced audio is the shield contact. I addressed it beginning on page 5 of this RFI tutorial, which started out life in 2007. k9yc.com/RFI-Ham.pdf A major contributor to that lightning damage are the MOV-based surge protectors provide power to interconnected equipment. The MOVs short to the green wire; the IR drop in the green wire from that current spike raises the reference potential for equipment plugged into it, and the difference between that and the chassis of interconnected equipment that's grounded somewhere else fries the interconnected circuitry. We started seeing this in pro audio systems in the early '90s, with no antennas involved. The solution was elimination of those MOV protectors, replacing them with series-mode units that stored surge in a monster inductor, then discharged it slowly as a trickle after the strike had passed. A colleague blew out the Ethernet ports of computers in his small design office from exactly this mechanism. Again, no antennas were involved. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eru...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] k3 Mic gain self resetting to 1
My thinking was to restore from an earlier workspace then reinstall the IC-7300 but I will take a look at the controls first. I don't remember making any recent changes to to the control configuration. Russ, KG7VQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] k3 Mic gain self resetting to 1
Thanks Victor, you called it. Started the K3 and it started with the correct mic controls. Booted the computer and started DXLab modules and the mic gain reverted to 1. Now I know where to look. Will start by removing the second radio, which installed when I sent the K3 back to Elecraft, and go over the configuration again. Thanks for the suggestion. 73 Russ KG7VQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] k3 Mic gain self resetting to 1
Some further info. Logging and control is via DXlab suite set up per the wiki through a serial port. The controls respond in both directions and the radio functions as expected during nets and general operation after the mic settings are adjusted. The problem only occurs at startup. The k3 and computer are shut down when not in use and the k3 is routed to a dummy load. The computer is powered on first. As I mentioned it's not every time but seems to be more often then not. Thanks for any advice. Russ, KG7VQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] k3 Mic gain self resetting to 1
After returning from Elecraft for repair and updating my K3 (1087) will reset it's Mic gain to 1 and Compression to zero. I backed up the radio's configuration when I get it back and reloading it does not solve the problem, which occurs at boot up more times then not. This is a barefoot setup with computer logging/control feeding a 178 foot extended zepp with 450 ohm twin lead. Is this a symptom of RFI to the radio? Anyone have any suggestions? KG7VQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Through-hole Replacement for K3 Q5 (2N7002)
Hello Pete: I have some thru-hole 2N7000 in my junk box. I can mail a couple to you if you want. Russ, N3CO On Thursday, October 21, 2021, 09:57:50 AM EDT, Pete Smith N4ZR wrote: The original surface-mount part seems to be back in stock in the US, but I'm afraid that what I need is a through-hole equivalent, because the PC board where the old one was mounted is a wreck (damage from part failure, plus my ham-handed efforts to replace it). Google thinks a 2N7000 will do, but I'd sure like to get an expert opinion. -- 73, Pete N4ZR Check out the new Reverse Beacon Network web server at <http://beta.reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eru...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KBPF3A switching frequencies and performance
Just an FYI, I found out what the problem is with my modified KBPF3. I removed the added caps and signal levels returned to somewhat normal levels. Adding a cap to C2 didn't make sense and attenuated the signals. But Fig. 14 shows adding a cap to C4. Apparently the ham I bought this from used Rev. A1, June 24, 2015 instructions which have an error. Figure 13 shows adding the 0.1uF caps to C2, C3 and C6. I downloaded Rev. A2 June 29, 2015 which correctly shows in fig. 13 to piggyback caps on C4, C3 and C6. Problem solved! Russ, N3CO On Monday, April 19, 2021, 09:04:58 PM EDT, ab2tc wrote: Hi Russ, Your response made *very* curious so I checked out my own K3S. I can confirm the two switchover frequencies you mention (1700 and 3300kHz), but observe at most a couple of dB change when crossing the boundaries. I use an external panadapter (LP-PAN/NaP3 connected to IF-OUT) so I can easily see the same stations and noise while tuning across the boundaries. On the 1700kHz boundary the signals are a couple, maybe 3dB stronger when below 1700kHz. So it sounds to me that the filters in your KBPF3A are not being switched in when it is supposed to be used. The KBPF3 needs to be enabled (set to "nor") in the configuration menu. Have you checked that? Hmm, I neglected to carefully read the last part of your post. It sounds like your KBPF3A might be working above 4210kHz so may be just the 2 lowest bands are defective. If you look at the schematic you see that those two bands use the same filter but with some components switched in and out by another relay (K2). So that could narrow the problem down to one relay (K1) not operating. Is this a *new* problem or has it been like this since you got the K3 or installed the KBPF3A? Knut - AB2TC Elecraft mailing list wrote > Hi Ben: > You had me curious with your request. I started to check my KBPF3 > (modified to the "A") and noticed something that now bothers me. I tried > going down from 160M and it appears that the switch over to the AM > broadcast band occurs precisely at 1700,000 Kc. When I tune to 1.69 > the relays click. But the anomaly(?) I am seeing at the switchover point > is a big drop in the signal level. At my QTH during the daytime the > nominal noise level at 1700.000 Kc is about S7. When I switch to 1.69 > the noise level drops to S2. At the high end the switchover occurs at > 2109.999+ with a drop in the noise level from S9+10 to S3. I don't use > the K3 for listening to AMBCB but only in the case of checking my 160M > receiving loops with some stations high in the AM Band. I checked on 80M > and got similar results. At the low side the switch occurred at 3299.999 > with a drop in the noise level from S5 to S2. On the high side the > switchover occurred at 4209.999+ but here the noise level increased from > S4 to S6. I don't know if this helps you any on at least these 2 bands. > If I get the time I'll try to check the rest. Now I'm bothered by the > changes in signal levels at the switchover points (ignorance is bliss). > I wonder if anyone else has ever noticed this or do I have an issue with > my KBPF3? > > Russ, N3CO > On Friday, April 16, 2021, 12:39:28 PM EDT, w4sc > w4sc@ > wrote: > > Looking for details of switch over frequencies and expected performance > of the KBPF3A in its various bands, > > There is improvement in the BCB and below 500KHz with the KBPF3A enabled, > however the other SW BCB bands I have tried are lacking. > > Has anyone measured the performance of the KBPF3A? > > Ben W4SC > > Sent from Mail for Windows 10 > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: > Elecraft@.qth > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to > erusst@ > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: > Elecraft@.qth > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to > lists+1215531472858-365791@.nabble -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Mes
Re: [Elecraft] KBPF3A switching frequencies and performance
Thanks Ben, I didn't think of that. Now when the KBPF3 is not inst There is no difference in signal level when transitioning from 1.700 to 1.69. And when I set the KBPF3 to nor (and reboot) there is a definite drop of 5-7 S units at the 1.700 transition point and also at the the 2.11 to 2.10999 transition. So there is definitely something in the low band signal path that is attenuating the signal. I'll also do some checking at the other freqs. I guess it's time to drag out the scope for some signal tracing which should be fun with SMDs and my old eyes. Russ, N3CO On Thursday, April 22, 2021, 09:09:47 AM EDT, w4sc wrote: When setting installed/ NOT installed, make sure you reboot…. Ben Sent from Mail for Windows 10 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eru...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KBPF3A switching frequencies and performance
Brian,Thanks for your information which got me thinking again about my situation. I went back and set the config for the KBPF3 to "not inSt" and found no difference at the signal levels at the switchover at 1700 Kc. Toggling back and forth between "not inSt" and "nor" I verified that there is no change in signal levels. On the surface it appears that I purchased a broken used KBPF3. Now I really have to take things apart to figure out what's wrong. Russ, N3CO On Tuesday, April 20, 2021, 07:23:37 PM EDT, Brian Hunt wrote: This thread also got my curiosity up. Several years ago I upgraded my K3 #41xx with the KBPF3 including the 'A' mod of the capacitor on the RF board. I never really checked it out except for the 630 meter coverage and transmit capability - both were as advertised. Using a wideband noise generator (QRP Guys K7QO Noise Bridge) I tuned from about 500 kHz up to 30 Mhz and was able to identify the filter switch-over points (most of them anyway). I measured the received noise level using the P3 dBm scale. At none of the switch points was the noise level more than about 5 dB different from one side to the other. By continuously tuning and watching the display, it was apparent that the differences were mainly due to roll off of one filter segment or the other. The gain was uniformly consistent across each of the ham bands but sometimes rolled off at the KBPF3 switch points. The area between 7.41 MHz and 8.4 MHz is kind of no-man's land due to the first IF being there. At the IF frequency the gain was down >50 dB. 73, Brian, K0DTJ On 4/20/2021 08:57, w4sc wrote: > A little back ground,, > > The effort started as a result of my using WWV at 15.00 MHz for > calibrating the reference oscillator. Tuning from 14.99 to 15.00 MHz > I noticed a 9 to 12 Db drop in signal strength of WWV. > > ... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eru...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KBPF3A switching frequencies and performance
Hi Knut: I couldn't tell you if this is a new problem as I didn't notice anything amiss until I started checking switchover frequencies to answer W4SC's question. I verified that the KBPF3 is enabled in the config menu. I bought the used KBPF3 about 4-5 years ago from another ham and don't remember who it was. It came with the instructions to modify it to the "A" version. I can't remember if it was already modified or if I did it myself. I do know that I did install the 220uF capacitor on the main board of the K3. Arrrgh, I guess I'll have to tear everything apart to check if the mods were done correctly before proceeding. Thanks for your information. Russ, N3CO On Monday, April 19, 2021, 09:04:58 PM EDT, ab2tc wrote: Hi Russ, Your response made *very* curious so I checked out my own K3S. I can confirm the two switchover frequencies you mention (1700 and 3300kHz), but observe at most a couple of dB change when crossing the boundaries. I use an external panadapter (LP-PAN/NaP3 connected to IF-OUT) so I can easily see the same stations and noise while tuning across the boundaries. On the 1700kHz boundary the signals are a couple, maybe 3dB stronger when below 1700kHz. So it sounds to me that the filters in your KBPF3A are not being switched in when it is supposed to be used. The KBPF3 needs to be enabled (set to "nor") in the configuration menu. Have you checked that? Hmm, I neglected to carefully read the last part of your post. It sounds like your KBPF3A might be working above 4210kHz so may be just the 2 lowest bands are defective. If you look at the schematic you see that those two bands use the same filter but with some components switched in and out by another relay (K2). So that could narrow the problem down to one relay (K1) not operating. Is this a *new* problem or has it been like this since you got the K3 or installed the KBPF3A? Knut - AB2TC Elecraft mailing list wrote > Hi Ben: > You had me curious with your request. I started to check my KBPF3 > (modified to the "A") and noticed something that now bothers me. I tried > going down from 160M and it appears that the switch over to the AM > broadcast band occurs precisely at 1700,000 Kc. When I tune to 1.69 > the relays click. But the anomaly(?) I am seeing at the switchover point > is a big drop in the signal level. At my QTH during the daytime the > nominal noise level at 1700.000 Kc is about S7. When I switch to 1.69 > the noise level drops to S2. At the high end the switchover occurs at > 2109.999+ with a drop in the noise level from S9+10 to S3. I don't use > the K3 for listening to AMBCB but only in the case of checking my 160M > receiving loops with some stations high in the AM Band. I checked on 80M > and got similar results. At the low side the switch occurred at 3299.999 > with a drop in the noise level from S5 to S2. On the high side the > switchover occurred at 4209.999+ but here the noise level increased from > S4 to S6. I don't know if this helps you any on at least these 2 bands. > If I get the time I'll try to check the rest. Now I'm bothered by the > changes in signal levels at the switchover points (ignorance is bliss). > I wonder if anyone else has ever noticed this or do I have an issue with > my KBPF3? > > Russ, N3CO > On Friday, April 16, 2021, 12:39:28 PM EDT, w4sc > w4sc@ > wrote: > > Looking for details of switch over frequencies and expected performance > of the KBPF3A in its various bands, > > There is improvement in the BCB and below 500KHz with the KBPF3A enabled, > however the other SW BCB bands I have tried are lacking. > > Has anyone measured the performance of the KBPF3A? > > Ben W4SC > > Sent from Mail for Windows 10 > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: > Elecraft@.qth > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to > erusst@ > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: > Elecraft@.qth > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to > lists+1215531472858-365791@.nabble -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: h
Re: [Elecraft] KBPF3A switching frequencies and performance
Hi Ben: You had me curious with your request. I started to check my KBPF3 (modified to the "A") and noticed something that now bothers me. I tried going down from 160M and it appears that the switch over to the AM broadcast band occurs precisely at 1700,000 Kc. When I tune to 1.69 the relays click. But the anomaly(?) I am seeing at the switchover point is a big drop in the signal level. At my QTH during the daytime the nominal noise level at 1700.000 Kc is about S7. When I switch to 1.69 the noise level drops to S2. At the high end the switchover occurs at 2109.999+ with a drop in the noise level from S9+10 to S3. I don't use the K3 for listening to AMBCB but only in the case of checking my 160M receiving loops with some stations high in the AM Band. I checked on 80M and got similar results. At the low side the switch occurred at 3299.999 with a drop in the noise level from S5 to S2. On the high side the switchover occurred at 4209.999+ but here the noise level increased from S4 to S6. I don't know if this helps you any on at least these 2 bands. If I get the time I'll try to check the rest. Now I'm bothered by the changes in signal levels at the switchover points (ignorance is bliss). I wonder if anyone else has ever noticed this or do I have an issue with my KBPF3? Russ, N3CO On Friday, April 16, 2021, 12:39:28 PM EDT, w4sc wrote: Looking for details of switch over frequencies and expected performance of the KBPF3A in its various bands, There is improvement in the BCB and below 500KHz with the KBPF3A enabled, however the other SW BCB bands I have tried are lacking. Has anyone measured the performance of the KBPF3A? Ben W4SC Sent from Mail for Windows 10 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eru...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K2 after kat2 install Q7 & 8 check
Thanks Don. To clarify the thread, I was reading infinite resistance. Russ KG7VQ On 6/24/2020 9:53 AM, Don Wilhelm wrote: Russ, Your statement of "no resistance" is misleading. Several hams use that to indicate infinite resistance - because of the way their meter reads (blank reading) where in other cases, hams use that phrase to indicate zero ohms. In the future, be clear and use a numerical value - infinity is a numerical value. The Collector to ground resistance will normally be in the vicinity of 1500 ohms and climb as the meter charges the electrolytic capacitors. 73, Don W3FPR On 6/24/2020 11:35 AM, Russ Edelen wrote: Thanks Don. That confirms the notion I had about needing the replacement kit. Russ KG7VQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K2 after kat2 install Q7 & 8 check
Thanks Don. That confirms the notion I had about needing the replacement kit. Russ KG7VQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K2 after kat2 install Q7 & 8 check
When I check, both show no resistance reading. Shorted probes read -1`or zero. I am reading from both the holding bolt and a 2D block to the collector. The kat2 instructions say to look for greater the 100 ohms and the k2 manual says to check for a short for proper installation. Infinite resistance meets these criteria but I'm not sure that's a proper interpretation. k2 is second hand No. 01112 firmware 2.04 Thanks for any clarification. Russ KG7VQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Current Draw on 20M
After reading your numbers here I was curious since my K3 is the same vintage as yours, serial 732, Apr'08. I did a quick check on 20M and I am reading 15.5A, @13.5V (on my Astron 20M meters) at 100W into a 50 ohm dummy load. I checked other bands and read the following: 160M-15.5A, 75M-14A, 40M-14A, 15M-13.6A, 10M-13A. All readings were in the tune position using a LP-100. I don't think the higher reading on 20 (or 160) is really significant. Russ, N3CO Sent from Yahoo Mail on Android On Fri, Jun 19, 2020 at 1:55 PM, Mike Maloney wrote: FWIW, my old K3 (Nov'08) only pulls 17.8Adc at 12.5V for 100W into 50ohm dummy load at 14MHz. Seems to follow your PA temp is gonna run hotter also. WHY such poor efficiency Elecraft, (Wayne) ? 73,Mike, AC5P On Friday, June 19, 2020, 12:03:45 PM CDT, Randy Farmer wrote: Mine does exactly the same thing. I even ran it through factory service to be sure there wasn't a problem with the LPF module that might be causing trouble. They calibrated it and returned it with a clean bill of health. It still draws significantly more current on 20 than on any other band. 73... Randy, W8FN On 6/19/2020 8:46 AM, Rich wrote: > I just received my K3S back from repair and all seemed OK. However it > appears to draw much more current on 20M than any other band. 22 - > 24 amps. I have tried two different 20m antennas and a dummy load. > > All other bands are 20 amps or lower. Some as low at 17amps. > > Power Supply voltage per K3s display 14.0v standby and 13.3 on TX > > First off is this actually something of concern? > > I hate to do a calibration as it was just done by Elecraft service two > weeks ago. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to a...@sbcglobal.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eru...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT Bluetooth Serial adapters
Thanks for the comments. Yes, I am confused as the the advertised capabilities of the various models of adapters and tablets. Presently I use a Garmin nuvie 350 but would like to move to a larger display. What I have works and that alone may be sufficient. Some times the mind wanders into the what if. Russ KG7VQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] OT Bluetooth Serial adapters
There is a wealth of knowledge and experience within this group. Has anyone used a Bluetooth serial adapter? I am considering one for my mobile Kenwood d-710 to utilize an android tablet. I see there are many implementations but I'm not sure if it is worthy of consideration. Thanks for any thoughts. Russ KG7VQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Wanted KSYN3A upgrade kit
I understand you may be looking for a bargain on one. They are still available for sale, but can be a bit hard to find. I see them when going to Quick Order, then K3 Upgrades. https://elecraft.com/pages/k-line-transceiver-k3-k3s - 73, Russ - W9RB -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S
It seems the K1 and KX1 hold a fairly high value on the used market after their demise. I'm hoping the K3 follows suit, so I can upgrade to the K4 later :) - 73, Russ - W9RB -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Low Power Output on 160 and 6 meters
56" for the original cable is quite long. What gauge cable are you using? Russ, N3CO Sent from Yahoo Mail on Android On Tue, Jun 25, 2019 at 10:05 AM, Everett via Elecraft wrote: Hi Jim, You brought up a good point that I had not thought of and that is the voltage drop at the K3S itself. So I set up the voltage reading a the VFO B window and noticed that the voltage had dropped down to 12.1V when I keyed down, but the power supply said 13.7V at key down. So I shortened the power cable, by 32" and now it is 24" long. Now I see 13.1V at VFO B window and 100 watt on 160 meters and 105 watts on 6 meters. I increased the power supply voltage to 14V and now I see 13.3V at VFO B window, on key down and now 105 watts out on 160 and 110 out on 6 meters. So to make a long story short, the K3S will put out over 100 watts on 160 and 6 meters if your power supply voltage is at 13.8 volts and you keep the power cord short. The additional 32" of power cord dropped the voltage by 1 volt on key down. Everett N4CY In a message dated 6/25/2019 7:50:32 AM Central Standard Time, hamsh...@n4st.com writes: I see the same output powers on my K3S. Key down voltage is 13.4 volts on the VFO B display at maximum power out. Elecraft offered to upgrade my PA chain for $100, but I'm not concerned about ~1dB and is within spec for 6m anyway. Glad that diode is in there. I tested its function once. _ 73, Jim - N4ST -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Don Wilhelm Sent: Tuesday, June 25, 2019 08:31 To: EVERETT SHARP ; elecraft@mailman.qth.net Subject: Re: [Elecraft] Low Power Output on 160 and 6 meters Everett, What is your power supply voltage during transmit at 100 watts as measured with the Alternate VFO B display? With a solid 13.8 volt power supply voltage, you should see no lower than 12.7 volts (there is a diode drop inside the K3). If lower, check the connections in the power cable for tightness. The K3 power cable should run direct from the power supply. Rigrunner and other DC power distribution boxes can be reason for excessive voltage drop. You can increase the power supply voltage up to above 14 volts to help - do not exceed 15 volts. 73, Don W3FPR On 6/24/2019 6:51 PM, EVERETT SHARP via Elecraft wrote: > I have three K3S and over the week-end I connected each of them to my Bird watt meter, with a Dummy load. Each of K3S were updated to the current Firmware and each had the 5 and 50 watt calibrations run. > > What I found was all 3 showed from 80 to 90 watts output on 160 meters > and on 6 meters I saw 75 to 90 watts. All other bands showed > typically > 105 to 110 watts. However, one of the K3S showed exactly 100 watts on all bands except for the lower power on 160 and 6 meters. > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hamsh...@n4st.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eru...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Heil 600 ohm balanced mic (PR40) connecting to rear
Yup A little bit of common mode Russ KD4JO Sent from my T-Mobile 4G LTE Device Original message From: Clay Autery Date: 6/7/18 5:16 PM (GMT-05:00) To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] Heil 600 ohm balanced mic (PR40) connecting to rear And if for some reason you have a TRS available and not TS connector just wire the ring and shield to Pins 1 and 3, and still pin 2 to tip. __ Clay Autery, KY5G (318) 518-1389 On 06/07/18 13:59, Bob McGraw K4TAX wrote: > If you wish to make your own cable using a XLR connector and a 1/8" > Tip-Sleeve connector, XLR pin #2 connect to Tip, XLR pin #3 and pin > #1 to the Sleeve. In the XLR world, pin #1 is ground/shield, pin #2 > is hot (+ve) and pin #3 is cold (-ve) Thus for unbalanced use, pin #1 > and pin #3 must be connected. > > Also, the mike bias must be OFF via the configuration selection in the > radio. > > 73 > > Bob, K4TAX > > > On 6/7/2018 11:06 AM, Michael Blake wrote: >> Mike, I connect my EV-RE50ND to the rear 1/8” connector on my K3s >> without issue. You need an XLR to TS 1/8” male cable or adapter. >> The mic does not care if it is balanced or unbalanced but if you use >> an XLR to TRS adapter the ring will be floating free and will cause a >> problem. >> >> You can buy the correct 3 pin XLR to 1/8” TS Male cable at your local >> Guitar Center or similar place for less that $20…. >> >> Select the rear mic. Gain high and bias off. The very same mic and >> cable also work perfectly with my KX3. >> Michael Blake >> k9...@mac.com <mailto:k9...@icloud.com> >> >> >> >> >> >> >>> On Jun 7, 2018, at 11:56 AM, mike wrote: >>> >>> I would like to connect my 600 ohm balanced mic PR 77D to the K3s >>> rear mic >>> connection. The mic connector is XLR 3-pin. I cannot figure out if >>> the K3 >>> rear connection can accept a balance mic. The adapters I have tried >>> produce >>> hum and lead me to believe they force it to unbalance. >>> >>> Any help appreciated. 73 ..mike AI6II __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to mundschen...@msn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Special type of coax - need info
like Belden 9077? https://catalog.belden.com/techdata/EN/9077_techdata.pdf We used it when I worked for Palmer Cablevision in Naples, FL in the early 80's 13 channels on one, 13 on another with a switch on top of your TV... Russ KD4JO -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dennis Moore Sent: Tuesday, January 16, 2018 3:06 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Special type of coax - need info Are you thinking of RG-6/U Twin Parallel Cable? 73, Dennis NJ6G On 1/16/2018 11:55, Bill wrote: > 30 years ago, when I was living in Fairfax County, VA, the TV cable > was shipped around on a double coax cable. It resembled lamp cord or > zip cord, and was two parallel coax lines with a webbing between them. > I am in need of the proper name for that cable, so I can search some out. > > I used it as feed for a full size lazy 80 meter loop - about the same > as tuned feeders would be used. It worked very well on all bands - > providing lots of DX and a ton of local coverage also. Not a > tri-bander - but it beat the socks off other wires and verticals. I > want to duplicate that antenna this spring. > > Thanks, > > Bill W2BLC K-Line __ Elecraft mailing list Home: https://nam03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft=02%7C01%7C%7C8d599e895a0142f28ea908d55d1ce168%7C84df9e7fe9f640afb435%7C1%7C0%7C636517300966816071=41YVMnptN7HRuK3ENT1SaxHBL%2FukhGCl141196%2BGAJs%3D=0 Help: https://nam03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm=02%7C01%7C%7C8d599e895a0142f28ea908d55d1ce168%7C84df9e7fe9f640afb435%7C1%7C0%7C636517300966816071=RQJVazN7N4H1SVCIEvG%2FjUFY2lEUiWgJRLjAL%2Bql8kg%3D=0 Post: mailto:Elecraft@mailman.qth.net This list hosted by: https://nam03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net=02%7C01%7C%7C8d599e895a0142f28ea908d55d1ce168%7C84df9e7fe9f640afb435%7C1%7C0%7C636517300966816071=GQQ%2BJzzUiCdbwkOs%2BCQ8nVTaGJYVo%2F%2FCDfXwNnjD2N4%3D=0 Please help support this email list: https://nam03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html=02%7C01%7C%7C8d599e895a0142f28ea908d55d1ce168%7C84df9e7fe9f640afb435%7C1%7C0%7C636517300966816071=Bo0DjgT5Bqrojj6odoP5CFn69jD2GsevB9dYReKkjsU%3D=0 Message delivered to mundschen...@msn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Microphone Cable
Jim: Still on topic any tying into a query the other day on the Reflector You are are the RFI mitigation guru - I am very impressed with the wealth of test data (especially on ferrite characteristics) that you have amassed. I have this cheap little Rolls MX28 mixer that I am using for SO2R monitoring. I brute force added about a pound of RG-8 size #31 beads to the AF and power inputs (it worked) but I want to fine tune the scheme. I have planned (using your data) to make chokes by wrapping the beads with 6 turns of RG-174 (used for audio) and grounding the "output" where it enters the mixer and leaving the input floating for CMRR. The mixer's impedance is 10K (resistive - no xfmr) bridging. Thanks, Russ KD4JO -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown Sent: Tuesday, January 16, 2018 12:49 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3S Microphone Cable The nature of the shield matters a lot. Back in 1994, Neil Muncy, ex-W3WJE (SK), published the landmark AES paper in which he exposed both The Pin One Problem and Shield Current Induced Noise (SCIN). The Pin One Problem is the (now) well known equipment design defect, whereby the cable shield fails to contact the shielding enclosure, first going to the circuit board, where shield current is coupled to the circuitry. SCIN is a defect in the construction of "rack cable" having a foil/drain shield, whereby the drain wire is twisted at the same rate as the signal pair and is much closer (along the cable) to one signal conductor than the other. This causes shield current to induce a differential voltage on the signal pair. Neil did his work on how these mechanisms coupled at audio frequencies, but in multiple bar conversations when we met at conventions, he said that both were also very strong causes of RFI, and that Pin One was the dominant cause. In 2003, I did research that confirmed this. Audio old-timers may recall that in the late '80s and early '90s, Mackie mixers were almost certain to pick up AM broadcast stations that were on the high end of the band. My work on susceptibility of equipment showed that they suffered both from Pin One Problems AND that the bandwidth of their audio circuitry extended past 1 MHz! In attempting to use one of these mixers to test condenser mics for RFI from FM and TV broadcast, I found that these mixers themselves strongly detected RF from TV channel 2, and were thus unusable! I also tested the RF rejection of quad cables, including Canare, and found that they were inferior in that regard to a good braid-shielded cable like Belden 8412. Gotham Audio cable (an EU cable then imported by the Neumann distributor) also performed quite well. All of that work was published as AES papers. You can buy them for $10 each at aes.org, or you can download them without the AES logo from my website for free. :) k9yc.com/publish.htm Scroll down to find the AES papers. As to the Heil cable -- I've never seen it, don't know its construction. As Don notes, additional conductors can be useful for control functions. 73, Jim K9YC On 1/16/2018 8:59 AM, Don Wilhelm wrote: > The Heilwire is IMHO the best wire for ham applications because it > contains additional conductors for PTT as well as a shielded twisted > pair and is soft and flexible. __ Elecraft mailing list Home: https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft=02%7C01%7C%7C8c1c1ab85d3d445416b708d55d09886b%7C84df9e7fe9f640afb435%7C1%7C0%7C636517217874417593=N29n883ffnF%2BcL3ti0xxJuCoRWpfSrUyX3AKjEkglvU%3D=0 Help: https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm=02%7C01%7C%7C8c1c1ab85d3d445416b708d55d09886b%7C84df9e7fe9f640afb435%7C1%7C0%7C636517217874417593=L95lsNXfBlgv1jlqnZ5Cv86oeTsEwUKkpxZ8cpYAtNc%3D=0 Post: mailto:Elecraft@mailman.qth.net This list hosted by: https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net=02%7C01%7C%7C8c1c1ab85d3d445416b708d55d09886b%7C84df9e7fe9f640afb435%7C1%7C0%7C636517217874417593=L35FI4q9zZ6OskcghFyYuEZB36dFhxqcnBLSEJYx2Xo%3D=0 Please help support this email list: https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html=02%7C01%7C%7C8c1c1ab85d3d445416b708d55d09886b%7C84df9e7fe9f640afb435%7C1%7C0%7C636517217874417593=YJ4xPbV3lEgAy1jIVxO0LCmE0tOQe0rYntV4qvkvxqQ%3D=0 Message delivered to mundschen...@msn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: h
Re: [Elecraft] Mixer for audio
All: I did some testing with a $75 Rolls MX-28 three channel stereo mixer yesterday. Here are my thoughts using it to split the audio from my K3 and JRC NRD 525 for SO2R monitoring: You get what you pay for - At 100W, there is no RFI evident At 1500Wm I needed to add a number of #31 mix beads on the Power & audio I/O's to choke out RFI which manifested itself as a hum/buzz on CW and modulated junk on SSB. The pots @ full CCW are not infinite attenuation That being said - with the proper RF choking, the little mixer is OK for monitor use, but I would not put it in the airchain. For my airchain, I use a AirCorp 500 PH Pro Announcer Mike Processor which, as a pro device, has internal RFI mitigation. Most processors used for broadcast have this LF RFI mitigation so they can be used at a co-located AT tx/studio site. Russ KD4JO From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> on behalf of Jim Brown <j...@audiosystemsgroup.com> Sent: Saturday, January 13, 2018 12:29 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Mixer for audio On 1/13/2018 4:19 AM, G4GNX wrote: > Has anyone else done this and can recommend a unit that's as RF proof > as possible. I would start with any model of Rane or Mackie manufactured AFTER about 1998. That's around the time that both companies acknowledged their Pin One Problems and corrected them. I'm recommending these companies because their products don't have this problem. Most other products DO. 73, Jim K9YC __ Elecraft mailing list Home: https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft=02%7C01%7C%7C9d79ba621496409fadda08d55aab496f%7C84df9e7fe9f640afb435%7C1%7C0%7C636514614066907921=soZ8bd37020B3AX9Je14DxeCto7n%2FGjm0huxFtpOa2c%3D=0 Help: https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm=02%7C01%7C%7C9d79ba621496409fadda08d55aab496f%7C84df9e7fe9f640afb435%7C1%7C0%7C636514614066907921=DyLCMPidy5qvJUG6uyto19MuWMv1zc7ZaLDHh3eIIQs%3D=0 Post: mailto:Elecraft@mailman.qth.net This list hosted by: https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net=02%7C01%7C%7C9d79ba621496409fadda08d55aab496f%7C84df9e7fe9f640afb435%7C1%7C0%7C636514614066907921=YGbUUWR6zrDRctRdbZnwAW81%2BdNOKk1HwQlvaP08vII%3D=0 Please help support this email list: https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html=02%7C01%7C%7C9d79ba621496409fadda08d55aab496f%7C84df9e7fe9f640afb435%7C1%7C0%7C636514614066907921=FRIutySs4MV3ufkWSPAqn2HzydioDO5oO6xEq78TWM8%3D=0 Message delivered to mundschen...@msn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Mixer for audio
Alan I will be installing a Rolls MX28 mixer today for monitoring SO2R with a second Rx - a JRC NRD 525. Ill let the group know how it goes Russ KD4JO Sent from my T-Mobile 4G LTE Device Original message From: G4GNX <g4...@g4gnx.com> Date: 1/13/18 7:20 AM (GMT-05:00) To: elecraft@mailman.qth.net Subject: [Elecraft] Mixer for audio I want to setup an audio mixer facility so that I can have at least on stereo headphone output and/or a stereo speaker output. That's the easy end. :-) I want to feed it with inputs from the K3S, IC7100, SDR output from a PC and possibly a Wouxun multi-band VHF. So a device with at least 4 stereo inputs and appropriate level controls. Has anyone else done this and can recommend a unit that's as RF proof as possible. I'm not averse to using a few ferrites, but the system has to be clean with 400W HF near it, as I need to listen to the SDR whilst transmitting. Thoughts on how to connect it would also be appreciated, bearing in mind that AFAICR the Wouxun only has a low impedance speaker outlet and all others must be stereo. 73, Alan. G4GNX __ Elecraft mailing list Home: https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft=02%7C01%7C%7Cfc3add58b9694da7e13c08d55a7ffaa3%7C84df9e7fe9f640afb435%7C1%7C0%7C636514428063145584=A%2BKLQIOXvuq%2BDSD5a731yqRXFCOONMnLwPx8OGmuqKk%3D=0 Help: https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm=02%7C01%7C%7Cfc3add58b9694da7e13c08d55a7ffaa3%7C84df9e7fe9f640afb435%7C1%7C0%7C636514428063145584=SVAzlM6SF7OLHK2vr%2F79QGp8wbQEstHcIIQ5xo6QYww%3D=0 Post: mailto:Elecraft@mailman.qth.net This list hosted by: https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net=02%7C01%7C%7Cfc3add58b9694da7e13c08d55a7ffaa3%7C84df9e7fe9f640afb435%7C1%7C0%7C636514428063145584=cN1gNs4hB7qrT7rYrp8YYBIWU9l3CVrZ%2BnODttWZ%2Fu0%3D=0 Please help support this email list: https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html=02%7C01%7C%7Cfc3add58b9694da7e13c08d55a7ffaa3%7C84df9e7fe9f640afb435%7C1%7C0%7C636514428063145584=63%2BgmxLmdACkMx8W0Irs%2BiJUxaDLsPQKaAP4IY%2BMO38%3D=0 Message delivered to mundschen...@msn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 48 volt PS
Correction - it’s a 24VDC Meanwell - sorry. Still works OK Russ KD4JO -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of kg9hfr...@gmail.com Sent: Thursday, December 7, 2017 1:21 PM To: John Stengrevics <jstengrev...@comcast.net> Cc: Dauer, Edward <eda...@law.du.edu>; elecraft@mailman.qth.net Subject: Re: [Elecraft] 48 volt PS Curious, I have a Meanwell RSP-3000-12 Anyone repair them? Frank KG9H > On Dec 7, 2017, at 12:13 PM, John Stengrevics <jstengrev...@comcast.net> > wrote: > > I use a Meanwell power supply for my amp. It causes very little RFI on my > K3S which is readily suppressed with ferrites. > > John > WA1EAZ > >> On Dec 7, 2017, at 12:57 PM, Dauer, Edward <eda...@law.du.edu> wrote: >> >> I need to buy a 48 VDC power supply for a project that requires that voltage >> – and possibly along with a voltage divider to power the K3. One suggestion >> I’ve received is the MeanWell SE 600-48. The online reviews are good, >> noting only high fan noise, which can be fixed by replacing the fan with a >> Vantac Stealth. But I haven’t seen anything about RFI. >> >> Anyone know this PS who could say something about the RFI question? Anyone >> have other suggestions for 48 VDC and at least 12 amps? >> >> Thanks, as always, >> >> Ted, KN1CBR >> >> __ >> Elecraft mailing list >> Home: >> https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft=02%7C01%7C%7C72b5cf6558ca4cc4b93508d53d9f6d74%7C84df9e7fe9f640afb435%7C1%7C0%7C636482677297187524=0vntmPi3PHAqEN0omYfC%2FJpFKjaQnfCL5YeDbJKF%2FGM%3D=0 >> Help: >> https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm=02%7C01%7C%7C72b5cf6558ca4cc4b93508d53d9f6d74%7C84df9e7fe9f640afb435%7C1%7C0%7C636482677297187524=WsZ0upBphX9%2Bp9WtGPXTwclLvo1%2BYIsGpB1Y9ErU0T8%3D=0 >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: >> https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net=02%7C01%7C%7C72b5cf6558ca4cc4b93508d53d9f6d74%7C84df9e7fe9f640afb435%7C1%7C0%7C636482677297187524=XbIrbqRb1fpGwBNYTmsPsPDaRDahwUANOQtXQuQ0jsA%3D=0 >> Please help support this email list: >> https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html=02%7C01%7C%7C72b5cf6558ca4cc4b93508d53d9f6d74%7C84df9e7fe9f640afb435%7C1%7C0%7C636482677297187524=Wd6SGxwIhWzokL4tWjnf95ThOisXCSHbG%2FKt03aZ0wY%3D=0 >> Message delivered to jstengrev...@comcast.net > > __ > Elecraft mailing list > Home: > https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft=02%7C01%7C%7C72b5cf6558ca4cc4b93508d53d9f6d74%7C84df9e7fe9f640afb435%7C1%7C0%7C636482677297187524=0vntmPi3PHAqEN0omYfC%2FJpFKjaQnfCL5YeDbJKF%2FGM%3D=0 > Help: > https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm=02%7C01%7C%7C72b5cf6558ca4cc4b93508d53d9f6d74%7C84df9e7fe9f640afb435%7C1%7C0%7C636482677297187524=WsZ0upBphX9%2Bp9WtGPXTwclLvo1%2BYIsGpB1Y9ErU0T8%3D=0 > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: > https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net=02%7C01%7C%7C72b5cf6558ca4cc4b93508d53d9f6d74%7C84df9e7fe9f640afb435%7C1%7C0%7C636482677297187524=XbIrbqRb1fpGwBNYTmsPsPDaRDahwUANOQtXQuQ0jsA%3D=0 > Please help support this email list: > https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html=02%7C01%7C%7C72b5cf6558ca4cc4b93508d53d9f6d74%7C84df9e7fe9f640afb435%7C1%7C0%7C636482677297187524=Wd6SGxwIhWzokL4tWjnf95ThOisXCSHbG%2FKt03aZ0wY%3D=0 > Message delivered to kg9hfr...@gmail.com __ Elecraft mailing list Home: https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft=02%7C01%7C%7C72b5cf6558ca4cc4b93508d53d9f6d74%7C84df9e7fe9f640afb435%7C1%7C0%7C636482677297187524=0vntmPi3PHAqEN0omYfC%2FJpFKjaQnfCL5YeDbJKF%2FGM%3D=0 Help: https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm=02%7C01%7C%7C72b5cf6558ca4cc4b93508d53d9f6d74%7C84df9e7fe9f640afb435%7C1%7C0%7C636482677297187524=WsZ0upBphX9%2Bp9WtGPXTwclLvo1%2BYIsGpB1Y9ErU0T8%3D=0 Post: mailto:Elecraft@mailman.qth.net This list hosted by: https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net=02%7C01%7C%7
Re: [Elecraft] Lightning damage
YES Now lets dump the spell check Russ Sent from my T-Mobile 4G LTE Device Original message From: K9MA <k...@sdellington.us> Date: 11/7/17 7:46 PM (GMT-05:00) To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Lightning damage Not lightening, LIGHTNING! -- Scott K9MA k...@sdellington.us __ Elecraft mailing list Home: https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft=02%7C01%7Cmundschenk55%40msn.com%7C1e56235d65734abd2e2508d52642149a%7C84df9e7fe9f640afb435%7C1%7C0%7C636456987617788446=GJ5mi%2BZUGD5zrpZ35Ellsq4jOIoQWc2JVk1avNwegrY%3D=0 Help: https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm=02%7C01%7Cmundschenk55%40msn.com%7C1e56235d65734abd2e2508d52642149a%7C84df9e7fe9f640afb435%7C1%7C0%7C636456987617788446=XPIkIdQzkbAOWusgOy0IxAQvn9Y9i94C7dpd2lbxbXU%3D=0 Post: mailto:Elecraft@mailman.qth.net This list hosted by: https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net=02%7C01%7Cmundschenk55%40msn.com%7C1e56235d65734abd2e2508d52642149a%7C84df9e7fe9f640afb435%7C1%7C0%7C636456987617788446=eNmNEhV9VT8jbynlJdlGvTur%2BwHM1yb%2BzWpf812BUu4%3D=0 Please help support this email list: https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html=02%7C01%7Cmundschenk55%40msn.com%7C1e56235d65734abd2e2508d52642149a%7C84df9e7fe9f640afb435%7C1%7C0%7C636456987617788446=fnFtk9qkVVRZkGVG3IF4yOzU9MZTJkqZe3V1G3xXLPE%3D=0 Message delivered to mundschen...@msn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Noise Blanker
Marvin: I just love my K3, but I also have been unable to find a setting for the noise blanker that works as well as the one in my Kenwood TS-480. The noise blanker does have some effect on impulse noise or AC hash in some settings, but also then introduces audible distortion. This is in no way a negative post - just looking for guidance. Russ KD4JO -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Marvin Wheeler Sent: Sunday, June 4, 2017 7:23 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3S Noise Blanker I have a K3S that was new in January of this year. I am very impressed with the radio and its' receiver. Compared to previously owned Yaesu FT1000D, 75A4, KWM-2, S-Line, Drake twins, it has the best receiver by far of the whole bunch. I do have a problem/complain in that the Noise Blanker has absolutely no effect on noise as far as I can tell. The only way I can tell the noise blanker is working is that if I turn the setting to high is seems to squelch (poor description) the received signal. Noise reduction works as I would expect. The noise blanker certainly does not work as well as some other receivers or even the Clear Speaker by West Mountain. Anyone else have this problem? --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to mundschen...@msn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Hallicrafters HA-1 with O/T comments
Doug: You are correct - and it seems that Maker Ffaires might be the venue for amateur radio outreach to the younger generation. When I am retired, I certainly would like to be part of this initiative. Is this something the ARRL should look at? I am happy to say that I am an Elmer to KB1YNK, who presented a paper at Dayton a couple of years ago. Russ KD4JO -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Person Sent: Monday, May 15, 2017 10:15 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Hallicrafters HA-1 with O/T comments You are very mistaken in your statement regarding kids not building things. They're not building ham radio, that's for sure. But find any maker faire and you will be stunned by the age and ability of the kids demonstrating their projects. Maker Faires (Their preferred spelling it seems) would be a great place to communicate ham radio to the younger generation. Arduino and Raspberry PI have enormous followings by teenagers and even a lot of pre-teens. Don't write them off! Our community has done a poor job of out reach to the teens of today. Doug -- K0DXV On 5/15/2017 11:27 AM, Russ wrote: > Guys: > > Thanks!!! > I appreciate all the responses. > I guess my Googling ability is not as good as it used to be. > I swear I couldn't find the schematic. > > At age 15 and after building many Heathkits - I decided to just copy the HA-1 > schematic. > It was good experience for a kid - nowadays nobody (no kids anyway) > build hardware > > Russ KD4JO > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > d...@k0dxv.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to mundschen...@msn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Hallicrafters HA-1
Guys: Thanks!!! I appreciate all the responses. I guess my Googling ability is not as good as it used to be. I swear I couldn't find the schematic. At age 15 and after building many Heathkits - I decided to just copy the HA-1 schematic. It was good experience for a kid - nowadays nobody (no kids anyway) build hardware Russ KD4JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Hallicrafter HA-1 (TO) Manual/Schematic
Folks: Not exactly Elecraft, but I am restoring the HA-1 tube keyer copy that I built from scratch as a kid in 1970. The tubes have all lost their markings (and maybe their functionality). Does anyone have a schematic (or manual)? Thanks, Russ KD4JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KREF3 Output Level Mod
All: Since I'm digging into the K3 to add some options, I have decided to make the output level mods suggested for the KREF3 board when used with the KSYN3A synth. Sub-rx and internal transverter. Just wondering why the R12 (main rx ref feed) swap from 150 ohms to 51 ohms and not the R10 sub rx feed resistor too? Is the main rx feed double terminated with the addition of the transverter, thus needing additional drive? Tnx, Russ KD4JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K144XV Implementation and Trades/WTB
All: I picked up an K144XV, a KXV3A and a K3EXREF at a hamfest last weekend from the estate of an SK. It was boxed as if to say that the hardware is all I need to implement a GPS synchronized transverter in a K3 - minus the GPS Rx. I'm not sure that is the case. (I have a 10 MHz Zyfer GPS synced reference oscillator) The K3EXREF PLL disciplines the K3's 49.38 MHz timebase. I am reasonably certain that I need a K144REFLK board to tie the K144XV to the 49 MHz timebase. I assume that the firmware has been written to tie all this to the K3EXREF (It hadn't been shortly after the K3EXREF came out). Now the needy/horse trading part :) Anybody want to trade a K144REFLK board for my KXV3A (I already have one in the K3). I also need a KFL3B-FM 13 kHz crystal filter Thanks, Russ KD4JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] WTB: KFL3B-FM Crystal Filter for K3
Hi: Does anyone have a KFL3B-FM 13 kHz FM Filter that is excess to their needs? I picked up a K144XV-K at a hamfest this last weekend.. Thanks, Russ KD4JO From: Russ Sent: Monday, September 12, 2016 4:38 PM To: elecraft@mailman.qth.net Subject: Independent Headphone & Speaker Volume Hi: I currently feed a powered speaker with the constant line output of my K3. I can individually adjust that speaker's volume locally and the HP volume on the K3. I'm contemplating the purchase of an SP-3. As this speaker is unpowered, I will have to use the K3 power amp and am afraid that I will lose the individual volume control versatility I have. If this is the case - would it be possible to repurpose the sub-rx (I don't have one) AF gain "ring" to control the speaker amp level. My understanding is that the speaker out and HP out's are fed by separate DAC's. Thanks, Russ KD4JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Headset/Mic Suggestions
The Koss SB45 has been working great for me and cheaper than the CM500. You can get them on Amazon for less than $30. Russ, N3CO From: Bill Gaines <a...@wcoil.com> To: elecraft@mailman.qth.net Sent: Monday, December 5, 2016 4:46 PM Subject: [Elecraft] Headset/Mic Suggestions Since I seldom use SSB I have not had the need to ask this question and I realize the responses may vary as much as belly buttons. I have a K3 and I also have the hand held microphone. I want to obtain a headset with an attached microphone to use with this radio just in case I may want to do some SSB work. I used to have a noise cancelling headset which I really liked because my shack is located in the laundry/utility room and it seems that the washer and/or dryer runs as often as the furnace does. The company that did make the noise cancelling headset no longer makes them so I am now trying to find out what other hams use or what is in the market place. I am especially interested in a noise cancelling headset with an attached microphone that sounds good on a K3. Thank you Bill AD8P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eru...@att.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Independent headphone and speaker volume
All: I understand the potential RFI issues and in fact have had to try different grounding schemes and #31 ferrites to eliminate the issue with my powered speaker. Call it a personal preference but when another person is in the shack and I want to use headphones, it is nice to have individual control of the speaker and HP. I could always add an amp to the SP3……. I’ll just order an Elecraft knob for the pot… Russ KD4JO PS - Back to the original thread name ☺ From: Charles R.Tropp [mailto:charlestr...@yahoo.com] Sent: Tuesday, September 13, 2016 6:31 AM To: Russ <mundschen...@msn.com>; Elecraft <elecraft@mailman.qth.net> Subject: Re: [Elecraft] Trump's a bigot - Hillary's a crook!! Hi Russ, I am not sure what problem you perceive in the failure of the SP3 to amplify it's signal allowing you to individually change it's volume setting. As some say, "this is a feature - not a bug" as it prevents possible RFI interference from a nearby transmitted signal. Volume on the K3 is controlled by the AF knob. Is this not all you need? I mostly work CW and use my headphones for that purpose. But sometimes, I am doing something else and would rather just listen to the speaker. I rarely adjust he AF knob and yet, I can hear CW throughout the house when the speaker is on. I use my K Pod to instantly switch between headphones only or headphones and speaker. All this is controlled by the configuration menu settings. I think you will enjoy the SP3 Russ, and if you buy two you can have stereo! 73, Charles N2SO Treasurer, Quarter Century Wireless Association, Inc. http://QCWA.org<http://qcwa.org/> On Monday, September 12, 2016 9:17 PM, Russ <mundschen...@msn.com<mailto:mundschen...@msn.com>> wrote: Now that I have your attention - off topic subjects get the most airtime it seems Here is an on-topic question - thanks!! I currently feed a powered speaker with the constant line output of my K3. I can individually adjust that speaker's volume locally and the HP volume on the K3. I'm contemplating the purchase of an SP-3. As this speaker is unpowered, I will have to use the K3 power amp and am afraid that I will lose the individual volume control versatility I have. If this is the case - would it be possible to repurpose the sub-rx (I don't have one) AF gain "ring" to control the speaker amp level. My understanding is that the speaker out and HP out's are fed by separate DAC's. Thanks, Russ KD4JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net<mailto:Elecraft@mailman.qth.net> This list hosted by: http://www.qsl.net<http://www.qsl.net/> Please help support this email list: http://www.qsl.net/donate.html Message delivered to charlestr...@yahoo.com<mailto:charlestr...@yahoo.com> __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Trump's a bigot - Hillary's a crook!!
Now that I have your attention - off topic subjects get the most airtime it seems Here is an on-topic question - thanks!! I currently feed a powered speaker with the constant line output of my K3. I can individually adjust that speaker's volume locally and the HP volume on the K3. I'm contemplating the purchase of an SP-3. As this speaker is unpowered, I will have to use the K3 power amp and am afraid that I will lose the individual volume control versatility I have. If this is the case - would it be possible to repurpose the sub-rx (I don't have one) AF gain "ring" to control the speaker amp level. My understanding is that the speaker out and HP out's are fed by separate DAC's. Thanks, Russ KD4JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Independent Headphone & Speaker Volume
Hi: I currently feed a powered speaker with the constant line output of my K3. I can individually adjust that speaker's volume locally and the HP volume on the K3. I'm contemplating the purchase of an SP-3. As this speaker is unpowered, I will have to use the K3 power amp and am afraid that I will lose the individual volume control versatility I have. If this is the case - would it be possible to repurpose the sub-rx (I don't have one) AF gain "ring" to control the speaker amp level. My understanding is that the speaker out and HP out's are fed by separate DAC's. Thanks, Russ KD4JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Cleaning a K3
If you are going to use a compressor, use a moisture/condensate trap like you would use with a paint spray gun. Those air tanks get full of water. And yes, of course keep the pressure way down!! Russ KD4JO -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John Severyn Sent: Wednesday, July 27, 2016 3:16 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Cleaning a K3 I will second Dick's caution of using any high pressure air or gas. The high flow rates can cause static charge buildup on higher impedance parts, causing over-voltage failures. Keep the flow rate and pressure lowdo not use an air compressor hose. The static buildup can happen no matter if the hose is conductive or insulating. The flow of air over the component leads generates a static charge. John AF6QO On 7/27/2016 6:56 AM, Richard Fjeld wrote: > Be careful if using a vacuum cleaner. A static build-up can develop. > I have seen it cause arcing. That may have been a hose with metal > fittings. > There is also a metal spring inside the hose that can conduct. Perhaps > an attachment with a brush for the hose will avoid a discharge. > > Dick, n0ce > > > On 7/27/2016 2:07 AM, Bill Frantz wrote: >> My K3 (and P3) were used in a very dusty environment in eastern >> Nevada. Some people there compared the dust levels to those at >> burning man. Does anyone have any advice about cleaning the equipment? >> >> 73 Bill AE6JV >> >> - >> -- >> >> Bill Frantz| Re: Computer reliability, performance, and >> security: >> 408-356-8506 | The guy who *is* wearing a parachute is *not* the >> www.pwpconsult.com | first to reach the ground. - Terence Kelly >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email list: http://www.qsl.net/donate.html Message delivered to >> rpfj...@outlook.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to mundschen...@msn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Soldering Station recommendation
Ed: Pace ST-50 - we use them at work - can't beat 'em if you can't afford a Metcal. The tips are integrated into the heating element and they are a breeze to change. They also regulate FAST. Here's one on e-Bay for $150 (I got the same one for $100) http://www.ebay.com/itm/Soldering-station-PACE-ST50-with-handpiece-and-extra-Tips-3-FREE-SHIPPING-/231974507997?hash=item3602c215dd:g:YYoAAOSwvg9XWQEx Russ KD4JO -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eddy Avila Sent: Monday, June 13, 2016 1:00 PM To: Elecraft <elecraft@mailman.qth.net> Subject: [Elecraft] Soldering Station recommendation Greetings Elecraft afficiados, I'm looking for a recommendation for a soldering station, my Weller temperature-controled station of 20 years is dying an agonizing death and its time to upgrade! I don't use my soldering station a lot, maybe once a month and once in a while put a kit together, so I don't need a really expensive unit, but probably one under $100 for my needs with temperature control. Any suggestions? Thanks much 73 Ed ~ k6sdw __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to mundschen...@msn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 radio no receive no transmit
Do you have the new KSYN3A? I just experienced a similar problem but tapping on the case didn't solve anything. Elecraft support determined I have a bad synthesizer. Russ, N3CO From: John K9UWA <j...@johnjeanantiqueradio.com> To: Mailman <elecraft@mailman.qth.net> Sent: Thursday, April 7, 2016 9:42 PM Subject: [Elecraft] K3 radio no receive no transmit My K3 is acting up a bit. No Receive No Transmit. I operate this radio remotely so all I can tell you is that it appears to be all working as per the HRD screen I am looking at. The radio appears to switch to transmit and I hear the monitor CW being sent but no output on the wattmeter. The only noise coming from the radio is inter radio noise it the volume is turned to max. A slight TAP on the top of the case and the radio goes back into perfect normal operation. I am guessing that some plug someplace inside the radio isn't making proper contact. Does anyone have any idea which plug and its location? Thanks John k9uwa John Goller, K9UWA & Jean Goller, N9PXF Antique Radio Restorations k9...@arrl.net Visit our Web Site at: http://www.JohnJeanAntiqueRadio.com 4836 Ranch Road Leo, IN 46765 USA 1-260-637-6426 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eru...@att.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Microphones
I have K3 S/N 732 and use a $2 electret computer mic I bought at a yard sale.
They had a white one that was only a $1 but I chose to go the more expensive
route and buy the $2 black one to match the K3. My settings are -16db up to
400 Hz, 0dB at 800-1600 Hz, and +16 dB at 2400 up and I get good audio reports.
After 8 years I did recently splurge and upgraded to the Koss SB-45 which
works great. Russ, N3CO
From: Bob McGraw K4TAX <rmcg...@blomand.net>
To: elecraft@mailman.qth.net
Sent: Friday, February 12, 2016 8:08 AM
Subject: Re: [Elecraft] K3S Microphones
I use a Heil PR 781 with great success. The K3S TX EQ is set as follows;
-16 dB @ 50 Hz, -12 dB @ 100 Hz, -6 dB @ 200 Hz, and 2400 Hz @ +3 Db,
3200 Hz @ +6 dB.
Working distance to the face of the mike is 4" to 5" on axis {one fist}
so as not to enhance bottom end due to proximity effect, typical of
dynamic mikes. The MIC SEL is set for FP.H with the mike gain at 40
and the COMP at 15. The PR 781 is mounted on a small spring loaded
desk boom that allows for easy placement for operation and moves easily
out of the way when not needed. I did make my own mike cable using some
Belden 8771 which is 3 conductor shielded cable connecting between the
XLR connector and the Foster connector. The cable shield connects at
the radio end only.
73
Bob, K4TAX
K3S, s/n 10163
On 2/11/2016 11:20 PM, grif80...@comcast.net wrote:
> As a new owner of a K3S, I'm wondering what the mix of microphones being used
> is. What mikes provide the best audio?
>
> Jiim, KC0TRK
>
__
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Re: [Elecraft] Seeking loop Antenna Parts
For the rope, try qualitynylonrope.com I'm not sure if they have grey or brown but I bought a 500ft spool of 3/16" black polyester for $42. AND they have free shipping for orders over $25. Russ, N3CO From: Clay Autery <caut...@montac.com> To: elecraft@mailman.qth.net Sent: Wednesday, February 10, 2016 4:58 AM Subject: [Elecraft] Seeking loop Antenna Parts So, based on a brief survey today, my first "real" antenna will be a nominally horizontal delta loop, while I save for and get construction designs approved for my tower. I'm seeking some specific parts and "preferred" vendors: 1) 3 each, 3" / 75mm MINIMUM diameter "plastic" (UV resistant) hanging pulley with swivel eye, sealed ball bearings, for cable/cord diameter of 3/16" I don't see what I want readily available. I can build them, but I'd prefer to not have to. Yes, 75mm minimum diameter to minimize loop wire wear/hardening and maximize freedom of movement. 2) 500-1000' Dacron/Polyester cordage in grey, brown, OD green, black in that order. 3) 500' nominal, 14 AWG, THHN stranded annealed copper, gray. 4) telescopic pole, preferably cable of free-standing with loop attachment NLT 30' with minimal tip flex. I can build this using locally sourced materials, some drilling, welding of supplemental retention nuts, and tapping, etc, but I'd prefer to get this up in the air. Alternatively, I could provide counter loop guy(s). The rest I can likely source locally. If I wasn't trying to get operational "with dispatch", I'd simply custom build the pulleys and station point pole. I may still do so. __ Clay Autery KG5LKV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eru...@att.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 12 meter K3 RFI from nearby FM station
What power are you running? Try an experiment by turning the power level down or up thereby switching between the LPA and the KPA3 to see if this changes the intermod level. This may narrow it down to the TR switch. I have had a similar problem with intermods between a couple of local AM stations. The level of intermod changed quite noticeably switching between the output amps. The KPA3 and LP are using different switching diodes for the TR switch. Russ, N3CO From: Jon Zaimes <j...@verizon.net> To: 'Vic Rosenthal 4X6GP/K2VCO' <k2vco@gmail.com>; elecraft@mailman.qth.net Sent: Wednesday, February 10, 2016 12:10 PM Subject: Re: [Elecraft] 12 meter K3 RFI from nearby FM station Thanks for the tips. Any filter likely would have to be inserted internally, since I am getting this RFI without any antennas connected to the radios.Unless it is coming in on the 12v power cord, which is still a possibility. I only tried a couple ferrites and they may not have been the right one for choking out the FM signal. I did observe that I am only hearing it on the main receiver in my K3 that has a sub RX, but not on the sub RX. Also, while checking for this, and then going back to the main RX, the RFI signal on the main RX was greatly reduced. Perhaps a relay contact issue. It is still just as strong as previous on my other K3 (which has no sub RX). Toggling through PRE and ATT did not eliminate it (though changed signal level as it would for any signal). 73/Jon AA1K -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Vic Rosenthal 4X6GP/K2VCO Sent: Wednesday, February 10, 2016 10:20 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] 12 meter K3 RFI from nearby FM station Jon, I had a similar problem with a 50 kW AM BC station a few miles away. It turned out to be strong enough to override the bias in the K3's T/R switch. I built a high-pass filter which solved the problem. You would need a low-pass filter in your case. Make sure it can handle 100w, because you must connect it in the main antenna path -- the RX in/out path is before the T/R switch. 73, Vic, 4X6GP/K2VCO Rehovot, Israel http://www.qsl.net/k2vco/ On 10 Feb 2016 16:58, Jon Zaimes wrote: > I had been noticing some RFI on 12 meters for some time that I > initially had thought was power line noise. My use of 12 meters is > seldom so it wasn't very high up on the list of things to track. > > When I was reminded of it while listening for VP8STI recently, I did a > little more snooping and realized it was actually splatter from a BC > signal at the low edge or slightly below the 12 meter band, centered > about 24.89 mHz but audible from 24.87-24.91 mHz. > > The distorted splatter is audible as a BC station, all talk, no music, > but not clear enough to decipher any ID. > > A few days ago I decided to try to pinpoint the source, so listened to > the RFI on one ear while scanning the AM and SW bands with the sub RX > on the other ear. But I could find no matches, though did find the > splatter popped up centered on these additional frequencies: > > 813 kHz > 996 kHz > 2.820 mHz > 3.626 mHz > 19.4 mHz > > Figuring it must be an FM BC station, I started going through a list > of Delaware FM stations and on the third one, 91.1 mHz, matched the > audio peaks to my splatter. Further research determined this was a > public radio station with a transmitter on a commercial tower just a half mile west of my QTH! > While I of course was aware of the tower, which I knew to carry a > couple of cell sites and trunking radio, I hadn't been aware of the FM > station, which has apparently been there about 2 years. FCC data shows > it has 2.1 KW ERP. I had not had any previous issues with the site over the past 17 years. > > Thinking that mixing or rectification might be produced either at the > TX site or on my own QTH, I decided to track with my mobile rig, an > IC-706 MK2G. But there was NO evidence of the splatter on the 706. > > Further debugging found that I was hearing the same splatter on BOTH > of my > K3 radios (no. 3021 and 3057). Even when ALL cables are removed (only > the power lead connected). Grounding or ungrounding made no change. I > tried the radios on a battery but still had the RFI. Tried some > ferrites on the power lead but no change. > > > So I'm thinking now there's some internal mixing in the K3 going on, > and wondering if any others have had similar issues and found any solution. > > 73/Jon AA1K > Felton, Delaware > www.aa1k.us > > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: m
Re: [Elecraft] Elecraft Digest, Vol 139, Issue 5
While I only have one QSO (1995, confirmed at that) with South Georgia and two QSOs (2002, confirmed CW/SSB) with South Sandwich, I am not inclined to commit KCDX Club money over and above what we have already sent. Most certainly I would like to fill other band slots with QSOs with these two 'entities', but I don't expect other club members to subsidize that. So, I think we are all in agreement. Save our Club's money for other worthy DXpeditions in 2016/2017. Russ -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of elecraft-requ...@mailman.qth.net Sent: Thursday, November 05, 2015 9:31 AM To: elecraft@mailman.qth.net Subject: Elecraft Digest, Vol 139, Issue 5 Send Elecraft mailing list submissions to elecraft@mailman.qth.net To subscribe or unsubscribe via the World Wide Web, visit http://mailman.qth.net/mailman/listinfo/elecraft or, via email, send a message with subject or body 'help' to elecraft-requ...@mailman.qth.net You can reach the person managing the list at elecraft-ow...@mailman.qth.net When replying, please edit your Subject line so it is more specific than "Re: Contents of Elecraft digest..." Today's Topics: 1. K2 Question: Is the DSP Board a Worthwhile upgrade? (David Inger) 2. WTB: KPA500 (Atsu Taniguchi) 3. Re: MAB boards for the K2? (Byron Servies) 4. Re: MAB boards for the K2? (Reuben Popp) 5. Re: KAT500 and KAT500 Utility Question (Phil Hystad) 6. Re: KX3 auto tuner solution available after tune? (Wayne Burdick) 7. Re: KX3 auto tuner solution available after tune? [TYPO FIXED] (Wayne Burdick) 8. Re: K2 Question: Is the DSP Board a Worthwhile upgrade? (Phil Wheeler) 9. Re: K2 Question: Is the DSP Board a Worthwhile upgrade? (Don Wilhelm) 10. Re: KAT500 and KAT500 Utility Question (Jim Brown) 11. Re: K2 Question: Is the DSP Board a Worthwhile upgrade? (Matt Maguire) 12. Re: MAB boards for the K2? (Brian Denley) 13. Re: MAB boards for the K2? (Brian Denley) 14. Bias and Dynamic Mics (Jim Brown) 15. Re: MAB boards for the K2? (Chip Stratton) 16. Re: K2 Question: Is the DSP Board a Worthwhile upgrade? (James Bennett) 17. Re: Bias and Dynamic Mics (Bob McGraw - K4TAX) 18. Re: Bias and Dynamic Mics (Jim Brown) 19. Microphone Setup (James F. Boehner, MD) 20. Re: K2 Question: Is the DSP Board a Worthwhile upgrade? (Sverre Holm (LA3ZA)) 21. Re: K2 Question: Is the DSP Board a Worthwhile upgrade? (Phil Wheeler) 22. Re: Bias and Dynamic Mics (Jim Brown) 23. MCU 5.10 or later (Mike Weir) 24. Re: Bias and Dynamic Mics (Joe Subich, W4TV) 25. Re: K3 Voltage on TX (ok1rp) 26. Re: K3 Voltage on TX (Bob McGraw - K4TAX) 27. Soldering crimped connectors is not a good thing. (Michael Blake) 28. High SWR no power out (WR5DC) 29. Re: Soldering crimped connectors is not a good thing. (Robert Harmon) -- Message: 1 Date: Wed, 4 Nov 2015 15:44:20 -0800 From: "David Inger" <ingerassocia...@cox.net> To: <Elecraft@mailman.qth.net> Subject: [Elecraft] K2 Question: Is the DSP Board a Worthwhile upgrade? Message-ID: <E74EFB9C96E9430083E19DF0DD44F5D8@DELLXPS> Content-Type: text/plain; charset="us-ascii" A friend has a fairly recent K2 with the KAF2 audio filter option. He asked me to remove the KAF2, build the KDSP2 board and install it in his K2. This got me to thinking: I also have a K2 wiht the KAF2 installed. My friend works mainly SSB; I work main CW and digital modes. Is the DSP board a significant improvement over the bare K2 or even with the KAF2 installed (which seems to be tailored for CW reception)? In general, radios that I have owned with AF DSP have been pretty much a disappointment. So is the KDSP2 a worthwhile and cost-effective upgrade? 73 de K6SBA David in Santa Barbara, CA -- Message: 2 Date: Thu, 5 Nov 2015 08:44:51 +0900 From: "Atsu Taniguchi" <je1...@a1club.net> To: elecraft@mailman.qth.net Subject: [Elecraft] WTB: KPA500 Message-ID: <d2c471a303db5575a030790209819591.squir...@www.a1club.net> Content-Type: text/plain;charset=iso-2022-jp Anyone who can sell and ship used KPA500 to Tokyo with reasonable price please contact off the list. Tks in advance de JE1TRV, Atsu -- Message: 3 Date: Wed, 4 Nov 2015 15:49:22 -0800 From: Byron Servies <by...@n6nul.org> To: Doug Shields <w4...@comcast.net> Cc: Reuben Popp <reuben.p...@gmail.com>,"elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: Re: [Elecraft] MAB boards for the K2? Message-ID: <CANB4+4Fr61Mm=0YV6eN5kyrXzTo9nn6gfH-o4pK686u1=vb...@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Hi, I have some spare, uncut and unpopulated, MAB boards. I'
[Elecraft] POWER ON MACRO or daily alarm wake up of K3S
Anyone can help with macro or other option to turn on K3S. I have used the alarm function but it clears if unit is already on, not sure if this is normal. Using a pair of Remote Rig 1258 MKII works but only from that one location, wanting to be able to turn on without the RRC unit such as from laptop. Thanks Russ K5OA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 UART communication with LabView
I am trying to understand the SET/GET protocol to serially communicate with the K3. I am experimenting with "FA;" which will retrieve the VFO A frequency. After I send the command, I get back responses three bytes at a time which I accumulate in a ring buffer until the response is complete. Sometimes I get the correct frequency in the response, sometimes only an "FA". Manual frequency change from the K3's front panel does not seem to be acknowledged. FA followed by the frequency does effect a frequency change. Is there a use group dedicated to UART K3 control? Thanks, Russ KD4JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Aux RF mod for Rx out (No Sub-Rx)
Thanks Sverre... Since I have a Mini-Circuits splitter - I'll give it a try to prevent a double termination and 2-1 VSWR Russ KD4JO Date: Tue, 25 Aug 2015 12:52:41 -0700 From: la...@nrrl.no To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Aux RF mod for Rx out (No Sub-Rx) I'm using a feed off the KXV3A's Rx in and Rx out ports, as you say, to feed a shortwave receiver. It's very simple with no splitter, just a BNC Tee connector. The K3 needs to be switched to a band which is higher than the external receiver for it to work as RF is routed through the K3's output filters. Also the K3 needs to enable the Rx ant. The shortwave receiver should be protected from the K3's transmitter with this scheme, at least my receiver has not suffered any damage. Don Wilhelm-4 wrote If you want to share the antenna, then the splitter is a solution - what about protection for your SDR receiver when the K3 is transmitting? On 8/24/2015 2:18 PM, Russ wrote: I would like to split my K3's Rx feed to also feed my new SDRPlay SDR. One way is to put a splitter (I'd use a mini-circuits ZFSC-2-1W+ or similar) between the KXV3A's Rx In and Rx out ports and suffer the 3 dB loss (which should be insignificant since my ambient noise is far above the K3's Rx noise floor. - Sverre, LA3ZA K2 #2198, K3 #3391, LA3ZA Blog: http://la3za.blogspot.com, LA3ZA Unofficial Guide to K2 modifications: http://la3za.blogspot.com/p/la3za-unofficial-guide-to-elecraft-k2.html -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Aux-RF-mod-for-Rx-out-No-Sub-Rx-tp7606708p7606736.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to mundschen...@msn.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 Aux RF mod for Rx out (No Sub-Rx)
I would like to split my K3's Rx feed to also feed my new SDRPlay SDR. One way is to put a splitter (I'd use a mini-circuits ZFSC-2-1W+ or similar) between the KXV3A's Rx In and Rx out ports and suffer the 3 dB loss (which should be insignificant since my ambient noise is far above the K3's Rx noise floor.Another way - I think - since I do not have a Sub-Rx is to make the Aux-RF BNC an output fed off of the cable that normally feeds (the nonexistent in my case) Sub- Rx. This leaves RX in/Out available for a transverter later on. BTW - I think this will still incur the 3 dB loss - albeit insignificant For those of you who are more familiar with the topology of the K3 - is there a simple way to accomplish #2 without buggering up the rig? Thanks, Russ KD4JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3S LOCAL REMOTE
I have been working with new K3S-P3 along with the Remote Rig 1258 MKII K3 Twin system. Input received from a few on the line here so wanted to give a short report. Goal was to have both full local and remote control of the K3S-P3 with as few cable swaps as possible. I am using the W3YY FSK-CW-PTT interface and a number of software logging/control programs (N1MM 1.0.5061, HRD 6.2.9.377, N4PY 4.20, and Win4K3Suite 1.762) have been tested with good results. Using a Winford Engineering (CDY15HDMFF-1) Y cable (standard VGA cable or VGA Y do not work and well documented by Elecraft) on the K3S Acc-1 jack for Remote Rig and W3YY use of FSK-PTT-Power on-Signal Ground. Future KPA500 will need second Y for ACC on KPA500 or KAT500 see KE7X K-Line book. New RJ45 to RS232 standard K3S cable (Elecraft # E980297) to the P3 XCVR input and then a BB Electronics Modem Data Splitter (9PMDS) with J3 to P3 PC jack connected with standard RS232 extension cable, J1 to PC with KUSB or equal RS232-USB converter and standard Remote Rig cable on J2 to Remote Rig Com-2 jack. This configuration is allowing the PC to make use of both the logging software programs and alternately the K3 and P3 utility programs at the Remote site. Normal Radio RR mic input to K3S Rear panel Mic in, Radio RR speaker to rear panel stereo speaker out, and Radio RR PTT to rear panel PTT. I have made use of the new USB port for the audio codec only (need Mic+Lin set) and use it with MMTTY or DM780 for PSK or AFSK. FSK-D is via the W3YY interface to Pin 1 of the ACC-1 connector for both local and remote operation. This is not battle tested but offered for others to use if looking for local/remote operation with new K3S. May be useful with amps as well that need two way control but untested. Thanks for input and help from W1UE, N6XI, W3YY, and DJ0QN-K7DX with use of the KE7X Cary books. Comment welcome as all on test bench now till Thursday when go live. * Note: Y is Elecraft part number E980190 DB15 Y- Cable. Also available, along with 15-pin cables, from http://www.winfordeng.com. Elecraft K3 Radio Accessory 'ACC' Port Splitter. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] P3 firmware 1.50 displays -dBm scale ending with 9
Loaded 1.50 per notes given here and see the DBM reading on p3 ending in 9 but on VGA display ending in 0. Beta loaded without error. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KSYN3A + KSYN3
All: For those of you who don't read instructions like me - remember to download and install the latest K3 utility before uploading the new 5.14 firmware (or above) - otherwise you may get an FPF load error. Question - if I decide to install a KRX3 later, can I reuse the old KSYN3 for it - can the old KSYN3 and the new KSYN3A coexist in the same box? OK - call me cheap / thrifty / cost effective or just stupid if you want :} Thanks, Russ KD4JO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] W6SFM Bug Roundup is working NOW!
Will my old K3 #732 work with my Vibroplex or will I need the K3s? I want to make sure I have all the latest. Or I guess I could just use my HT-32As. Russ, N3CO From: ARRL - N6MQL n6...@arrl.net To: elecraft@mailman.qth.net Sent: Saturday, May 16, 2015 1:40 PM Subject: [Elecraft] W6SFM Bug Roundup is working NOW! For those of you who are interested in actually getting on the air, instead of hanging out here on the chat room... The W6SFM Bug Roundup Event is going on now! Signals are being heard on 10,15, 20, 40 and 80 meters. I've got my Bug from 1918 out and having fun on the air with other Bug Key operators. Hope some of you decide to turn off the computer and join me too! 73, Michael N6MQL For more info: http://www.w6sfm.com/Bug_Roundup.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eru...@att.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Fw: Fw: Interesting K3 QRM problem
Thanks Lexa and Joe, I see what you are saying about the PIN diode switch. Looking at the schematic, the T/R switch for the LPA uses the MA4P which is a true high power pin diode, but the KPA3 actually uses the S1M which is a rectifier diode. It makes me wonder why different type were used in the two designs. I assume this is correct since my K3 is one of the early ones (S/N 732). I t looks like both can handle 1A forward current. So... it looks like my options are to take apart my old faithful K3 (again) and change the resistor R58 as you suggested, or try to fabricate a high power bandpass or high pass filter, or just ignore it and stay away from 1840. I guess I'll have to seriously consider the first option. Russ, N3CO On Tuesday, November 11, 2014 9:38 AM, Joe Subich, W4TV li...@subich.com wrote: What helps - increasing current in diode switch on KPA board - change of R25 to cca 65 Ohm and there are no IMD products as before. This would tend to explain why Russ sees a more of a problem at low power than at high power. Current through the receive diodes in the KPA3 is about three times as much as those on the RF board (13/200 vs. 7/320). One would need to look carefully at the specifications of the PIN diodes and the FETs being used for switching. However, the resistors to tweak would be R58 on the mainboard and R25 (as Lexa mentions) on the KPA3. The idea would be to keep the diodes turned on hard enough to prevent them from turning off on RF peaks. 73, ... Joe, W4TV On 2014-11-11 5:03 AM, alexandr.kobra...@seznam.cz wrote: Hi Russ, the same problem was here with BC station abt 5km away. Only with KPA in the chain. What helps - increasing current in diode switch on KPA board - change of R25 to cca 65 Ohm and there are no IMD products as before. Hope this can help in any similar case in very special configuration of local BC station and non resonant ant used for higher bands. (I had IMD problems from 14MHz up, with with LW ant, BC station on 1062kHz) GL 73! Lexa, ok1dst -- Původní zpráva -- Od: Russ Tobolic eru...@att.net Komu: Elecraft@mailman.qth.net Elecraft@mailman.qth.net Datum: 10. 11. 2014 17:17:51 Předmět: [Elecraft] Fw: Interesting K3 QRM problem In this recent discussion here on K3 QRM from strong local broadcast stations, W4TV brought up the noise generated in the T/R switching diodes. In doing some experimentation with a bandpass flter in the loop between the RX antenna out and in on the KXV3A I have discovered something which has baffled me. I have a 2KW station on 1480 kc 1.5 miles north of me and a 20KW station on 1300 kc about 5 miles south of me. The 1300 station is directional north and I am right in the boresight. I am experiencing +30 to +40 dB over S9 intermod from these two stations on 1840 kc. An intermod calculator shows a 5th order intermod at 1840 from the two stations. I normally run QRP at 5W cw and what I have discovered is that when I crank up the power above 15W (activating the KPA3), the intermod drops to about +5 to +10 dB over S9. This behavior is very consistent when switching between low and high power. Can anyone explain this or is something broke in my K3? Thanks, Russ, N3CO On Thursday, October 23, 2014 4:52 PM, Joe Subich, W4TV li...@subich.com wrote: Maybe, and if you're right, my suggestion may not help. But you misunderstood my suggestion. There is an insert point between the T/R switch and the RX input. That's the RX loop I was talking about -- you insert the filter there. The insert point is *after* the PIN diode T/R switches for both the HPA (KPA3) and 10W LPA. Given Vic's description, it is likely the noise is being generated in one or more of the PIN diodes in the T/R switching and placing the highpass filter in the insert point will not resolve the noise. Vic, you can bypass (disable) the KPA3 to see if the noise generation is in the KPA3 T/R switch. 73, ... Joe, W4TV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to alexandr.kobra...@seznam.cz __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net
[Elecraft] Fw: Interesting K3 QRM problem
In this recent discussion here on K3 QRM from strong local broadcast stations, W4TV brought up the noise generated in the T/R switching diodes. In doing some experimentation with a bandpass flter in the loop between the RX antenna out and in on the KXV3A I have discovered something which has baffled me. I have a 2KW station on 1480 kc 1.5 miles north of me and a 20KW station on 1300 kc about 5 miles south of me. The 1300 station is directional north and I am right in the boresight. I am experiencing +30 to +40 dB over S9 intermod from these two stations on 1840 kc. An intermod calculator shows a 5th order intermod at 1840 from the two stations. I normally run QRP at 5W cw and what I have discovered is that when I crank up the power above 15W (activating the KPA3), the intermod drops to about +5 to +10 dB over S9. This behavior is very consistent when switching between low and high power. Can anyone explain this or is something broke in my K3? Thanks, Russ, N3CO On Thursday, October 23, 2014 4:52 PM, Joe Subich, W4TV li...@subich.com wrote: Maybe, and if you're right, my suggestion may not help. But you misunderstood my suggestion. There is an insert point between the T/R switch and the RX input. That's the RX loop I was talking about -- you insert the filter there. The insert point is *after* the PIN diode T/R switches for both the HPA (KPA3) and 10W LPA. Given Vic's description, it is likely the noise is being generated in one or more of the PIN diodes in the T/R switching and placing the highpass filter in the insert point will not resolve the noise. Vic, you can bypass (disable) the KPA3 to see if the noise generation is in the KPA3 T/R switch. 73, ... Joe, W4TV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Help ! ACC2 Module is Keying Amp
Hi All, I am having trouble with keying my AL-82 with my KX-3 thru my N0XAS UKA-2 keying adapter. The setup has worked for over a year and all of a sudden the KX-3 shows a center to ground on the ACC2 phono all the time. I checked the ACC2 settings and I can’t get it out of this grounded setup. I disconnected all cabling on left side , turned it off and on. I see no error messages ? Everything is normal with the Ten Tec Orion2 and the N0XAS UKA-2 adapter as before, so I feel the problem is with the KX-3 sending in the ground. Any help with this is appreciated . 73’s Russ K9VON __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] INSTALLING AEROSYNES HEAT SINK AND WARRANTY
HI, I AM PLANNING ON INSTALLING THE VE7FMN HEAT SINK TO MY KX3. WILL THIS INVALIDATE MY KX3 S/N#4049 WARRANTY? RUSS K9VON __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3 display issue
Thanks for the help. The parameter initialization did it. This is the first time I have had to do this and I pretty much figured I had changed something inadvertently. I probably did, but this cut to the chase so i wasn't trying to find out which one. Once again thanks. Russ Edelen, KG7VQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] P3 display issue
I don't know what happened but my P3 suddenly has no spectrum display and the waterfall is solid pink at all span settings. I tried to reset the reference level but the only setting option available is nan. The P3 still tracks the K3 VFO. I tried to reset the scale, power cycled the P3, checked the rear cables, reloaded the current firmware and adjusted the RF gain on the K3 with no change. I have been running firmware 1.26 for some time with no problems. Serial number is 682 with no VGA adapter. Any suggestions? Thanks. Russ- KG7VQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] UP GRADE KX3 to MCU 1.61/ DSP 1.23
I'M USING MY MAC ,WITH OS X 10.8.4 AND DID A UP GRADE TO MY KX3 (#4049) WITH NO PROBLEMS. EVERYTHING WORKS GREAT THANK YOU FOR PUTTING OUT A GREAT PRODUCT AND GREAT SUPPORT. RUSS K9VON __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] What is (Edit Power On Banner) ???? on my KX3
I see Edit Power On Banner, in the configuration menu. What is this banner thing going to do? What do I put in it? Thanks Russ K9VON KX3 # 4049 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Just updated my software !! I EVEN DID IT :-)
Hi All, I was very worried about updating my KX3 # 4049 I got less then a week ago, but I followed the info. I needed more help getting my Apple Mac mini to let me download and then open the Elecraft software . I opened my security settings and let Elecraft in and no problem after that. I was wondering if there is place I can print a hardcopy of what is now different so I can make changes to my manual. It's nice to keep up with the latest but I need something I can read when I'm offline. I got the Rev. B4-4, Jan. 24, 2013 (Manual and Firmware Errata) with my KX3. I just downloaded 1.36 DSP 01.05 Thanks I's easier then I thought, 73's Russ K9VON __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KPA100 Shield
I was checking the fit of the shield on the KPA100 project that I'm building for K2 #6997 and found that the shield holes are off by the thickness of the back panel. If I match the back edge of the shield with the back edge of the back panel, all 7 holes match exactly, but the back standoffs are too short to reach the shield. If I place the shield against the inside of the panel, then the holes don't match up. I have the drill press attachment for my Dremel tool. Should I slot the holes so the shield sits flat on the standoffs? Or am I misreading how the shield is supposed to fit on the standoffs? It lays perfectly flat on the standoffs as long as the holes don't match up. Thanks. 73 Russ WD5RS Elecraft K2 #6997 10-10 #37287 FISTS #9162 Grid EM12mc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Hi current display
Scott; Thanks, I guess I'll have to wait until Gary gets back. My voltage readings are all OKand I've tried a reload of the firmware 3 times with no luck. Russ N3CO - Original Message - From: Scott Ellington sdell...@facstaff.wisc.edu To: Russ eru...@att.net Sent: Tuesday, March 15, 2011 4:04 PM Subject: Re: [Elecraft] K3 Hi current display Russ, Gary is out of town for a few days. If your other voltages are reading OK (12 V, SWR, etc.), I would suspect a firmware problems. (I've had to reload the MCU code on my K3 a couple times to fix other problems.) I also had some trouble with a KPAIO3 board that was reading KPA3 current way too high. Replacing the board solved that problem. In your case, with the KPA3 removed, or power set below 12W, the K3 shouldn't even be looking at the KPAIO3 sensor. 73, Scott K9MA On Mar 15, 2011, at 2:43 PM, Russ wrote: I recently repaired my K3 LPA by replacing one of the output MOSFETS and making other modifications per Gary Surrency. I had to re-adjust the bias on the finals using an external ammeter and was able to complete that successfully. The LPA now puts out the full 12W. However, the front panel display shows that the K3 is always drawing aroung 24A when I know it is less than 1A on the external meter. The reading is the same whether or not I have the KPA3 installed. I still haven't had a response from Gary so I thought I'd ask if anyone else has seen this. I have checked the output of the current sense U1 and it is correct. Anyone have any ideas??? Thanks, Russ N3CO Scott Ellington Madison, Wisconsin USA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Hi current display
I recently repaired my K3 LPA by replacing one of the output MOSFETS and making other modifications per Gary Surrency. I had to re-adjust the bias on the finals using an external ammeter and was able to complete that successfully. The LPA now puts out the full 12W. However, the front panel display shows that the K3 is always drawing aroung 24A when I know it is less than 1A on the external meter. The reading is the same whether or not I have the KPA3 installed. I still haven't had a response from Gary so I thought I'd ask if anyone else has seen this. I have checked the output of the current sense U1 and it is correct. Anyone have any ideas??? Thanks, Russ N3CO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: Big Ferrite Split Beads @ B.G. Micro
The ad says 44 43 materiel. Going by the P/N it looks like #43 ferrite. Russ, N3CO - Original Message - From: Jim Sheldon w...@cox.net To: ab2tc ab...@arrl.net; elecraft@mailman.qth.net Sent: Wednesday, January 19, 2011 11:21 AM Subject: Re: [Elecraft] OT: Big Ferrite Split Beads @ B.G. Micro They didn't list the material type in the ad, so no, I don't. I suspect they are surplus from a computer power supply manufacturer as they are about the same size as those used around the output leads of many of the switching supplies used in computers. I've had several queries on this so I'm posting here - I have no idea what ferrite material is used in these cores and by the time the ones I ordered get here and I test them with my antenna analyzer and a 5 turn loop, they'll probably be sold out. Jim - W0EB Any idea what the ferrite material is? AB2TC - Knut Jim Sheldon-2 wrote: Anyone needing those big ferrite, snap together, split beads for reducing RFI on cables, B.G. Micro has them in stock at a pretty good price. $1.43 each plus shipping. Jim - W0EB snip __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] IC Socket
I am working on the KAF2 audio filter for my K2; at least I will be as soon as the missing voltage regulator makes it thru the Christmas mail. Naturally my junk boxes have 5V, 8V, 9V, 12V etc., but no 6V regulators! Hi Hi ! The instructions state that the real time clock IC is static sensitive. Can I put this IC in an 8 pin header rather than soldering it to the board? Russ WD5RS 10-10# 37287 FISTS 9162 Grid EM12mc K2 #6997 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (K-3) with Yaesu FL-2100B Amplifier
Aloha group. I have K-3 #4358 and am attempting to connect my Yaesu FL-2100B to the K-3. Any help on the ALC connection? Thanks in advance. Russ DarlingKH7SThe Big Island __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Working PSK-31 / Frank MacDonnel
Hi Frank, I work PSK-31 most of time from out here in Hawaii on the Big Island. When calling cq, make certain you include qrp several times in the cq. Drop a private email to me and lets set up a sked. KH7S Russ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] FOR SALE: KPA100
My K2 is reverting back to QRP since I have the K3. Selling the KPA100 with all the upgrades for $325 shipped in CONUS. Includes power cable and the cable for the KIO2. If interested please respond off list. Thanks, Russ, N3CO erusst at att dot net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Headphone specs - KX1
If you look at the back of the package that the headphones are in they usually list the specifications. Many times I've seen a nice pair of acceptably priced head phones/buds (basically less the $20 give or take), picked up the package, looked at the back and then replaced it on the displaybad specs. The KX1 manual talks about the type of phones to look for. Russ nf7v __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] a new ham in the Elecraft team
I joined the wrestling team, but it did nothing to advance my radio skills. You made the right decision for the wrong reason. -- Sent from my BlackBerry Wireless Handheld Russ Garrett Bullivant|Houser|Bailey PC 805 Broadway Street, Suite 400 Vancouver, WA 98660-3310 mailto:russ.garr...@bullivant.com direct dial: 360.737.3363 - fax: 360.695.8504 http://www.bullivant.com Seattle . Vancouver . Portland . Sacramento . San Francisco . Las Vegas - Original Message - From: elecraft-boun...@mailman.qth.net elecraft-boun...@mailman.qth.net To: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Fri Jul 03 11:03:59 2009 Subject: Re: [Elecraft] a new ham in the Elecraft team I got into ham radio to impress the chicks. In retrospect, I probably should have joined the wrestling team... :-) S Sacco wrote: The best people to recruit for Ham radio are not the ones who only think of it as a replacement for a telephone, but for the ones who are fascinated in the other aspects - the interaction of factors that affect radio propagation, or antenna design, or competition, or collecting (like DXing), or electronics design, or emergency communications. -- View this message in context: http://n2.nabble.com/a-new-ham-in-the-Elecraft-team-tp3198647p3202696.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html mail.bullivant.com made the following annotations - Please be advised that, unless expressly stated otherwise, any U.S. federal tax advice contained in this e-mail, including attachments, is not intended to be used by any person for the purpose of avoiding any penalties that may be imposed by the Internal Revenue Service. - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft's website down? I keep gettingnetworktimeout
Well, there is always 20 meters!!! :) Russ Garrett Kd7mpk -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Andy Faber Sent: Thursday, April 09, 2009 10:19 AM To: Lyle Johnson; Chris Wagner Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Elecraft's website down? I keep gettingnetworktimeout I have heard that there's an ATTT trunk line cut in San Jose that affects service to the Santa Cruz County area, including Aptos. Telephones and internet are affected. 73, andy, ae6y mail.bullivant.com made the following annotations - Please be advised that, unless expressly stated otherwise, any U.S. federal tax advice contained in this e-mail, including attachments, is not intended to be used by any person for the purpose of avoiding any penalties that may be imposed by the Internal Revenue Service. * This e-mail is for the sole use of the intended recipient(s) and contains information belonging to Bullivant Houser Bailey, which is confidential and/or legally privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or taking of any action in reliance on the contents of this e-mail information is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender by reply e-mail and destroy all copies of the original message. - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX-1 what do you use for an antenna when you're in a place with no trees to throw the vertical up?
I have a camping trip planned and will likely be in a few places where there are no trees where I will easily get a vertical wire up. What does everyone else do when the surroundings are not ideal for a wire in a tree? I have seen other antennas referenced such as the buddystick and the PAC-12. Thanks Russ Garrett Kd7mpk mail.bullivant.com made the following annotations - Please be advised that, unless expressly stated otherwise, any U.S. federal tax advice contained in this e-mail, including attachments, is not intended to be used by any person for the purpose of avoiding any penalties that may be imposed by the Internal Revenue Service. * This e-mail is for the sole use of the intended recipient(s) and contains information belonging to Bullivant Houser Bailey, which is confidential and/or legally privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or taking of any action in reliance on the contents of this e-mail information is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender by reply e-mail and destroy all copies of the original message. - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX-1 what do you use for an antenna when you're in a place with no trees to throw the vertical up?
Thanks to all that responded. The general consensus is that using the buddistick, pac-12 or some other version of coil and shorter vertical is not as effective as simply getting up as high as possible with a vertical wire antenna and radial/counterpoise. Other than the tree, most have suggested a telescopic pole made of fiberglass and there are several on the market. They will need to be supported with guy lines. I have used a 28 foot vertical. The 32 would be ideal I would guess as the next smallest is 22 ft. Thanks again Russ Kd7mpk mail.bullivant.com made the following annotations - Please be advised that, unless expressly stated otherwise, any U.S. federal tax advice contained in this e-mail, including attachments, is not intended to be used by any person for the purpose of avoiding any penalties that may be imposed by the Internal Revenue Service. * This e-mail is for the sole use of the intended recipient(s) and contains information belonging to Bullivant Houser Bailey, which is confidential and/or legally privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or taking of any action in reliance on the contents of this e-mail information is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender by reply e-mail and destroy all copies of the original message. - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Kx-1 ---help
I'm moving through the bands just fine until it is supposed to nove to 14 mhz. Instead it shows as 13? This must be something simple. Did not have this problem last night. Thanks Russ Kd7mpk -- Sent from my BlackBerry Wireless Handheld Russ Garrett Bullivant|Houser|Bailey PC 805 Broadway Street, Suite 400 Vancouver, WA 98660-3310 mailto:russ.garr...@bullivant.com direct dial: 360.737.3363 - fax: 360.695.8504 http://www.bullivant.com Seattle . Vancouver . Portland . Sacramento . San Francisco . Las Vegas mail.bullivant.com made the following annotations - Please be advised that, unless expressly stated otherwise, any U.S. federal tax advice contained in this e-mail, including attachments, is not intended to be used by any person for the purpose of avoiding any penalties that may be imposed by the Internal Revenue Service. * This e-mail is for the sole use of the intended recipient(s) and contains information belonging to Bullivant Houser Bailey, which is confidential and/or legally privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or taking of any action in reliance on the contents of this e-mail information is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender by reply e-mail and destroy all copies of the original message. - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Kx-1 ---help
Thanks. I rotated the vfo first thinking that was it. Didn't rotate it far enough. Now I'm back. Thanks Wayne. -- Sent from my BlackBerry Wireless Handheld Russ Garrett Bullivant|Houser|Bailey PC 805 Broadway Street, Suite 400 Vancouver, WA 98660-3310 mailto:russ.garr...@bullivant.com direct dial: 360.737.3363 - fax: 360.695.8504 http://www.bullivant.com Seattle . Vancouver . Portland . Sacramento . San Francisco . Las Vegas - Original Message - From: wayne burdick n...@elecraft.com To: Garrett, Russ Cc: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Sat Feb 21 13:28:20 2009 Subject: Re: [Elecraft] Kx-1 ---help Hi Russ, What you see when changing bands is the MHz value that you're tuned to on each band. You must have the VFO tuned below 14 MHz on 20 m. 73, Wayne N6KR On Feb 21, 2009, at 1:08 PM, Garrett, Russ wrote: I'm moving through the bands just fine until it is supposed to nove to 14 mhz. Instead it shows as 13? This must be something simple. Did not have this problem last night. --- http://www.elecraft.com mail.bullivant.com made the following annotations - Please be advised that, unless expressly stated otherwise, any U.S. federal tax advice contained in this e-mail, including attachments, is not intended to be used by any person for the purpose of avoiding any penalties that may be imposed by the Internal Revenue Service. * This e-mail is for the sole use of the intended recipient(s) and contains information belonging to Bullivant Houser Bailey, which is confidential and/or legally privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or taking of any action in reliance on the contents of this e-mail information is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender by reply e-mail and destroy all copies of the original message. - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Kx-1. Dc power connector size
Anyone know the size of the dc power connector (male) end that fits into J1? I need to construct a dc power cable (with a fuse) to connect to a 13.7v battery. I have searched the manual with no luck. Any assistance would be appreciate on the parts/construction of that piece. 73 Russ Kd7mpk -- Sent from my BlackBerry Wireless Handheld Russ Garrett Bullivant|Houser|Bailey PC 805 Broadway Street, Suite 400 Vancouver, WA 98660-3310 mailto:russ.garr...@bullivant.com direct dial: 360.737.3363 - fax: 360.695.8504 http://www.bullivant.com Seattle . Vancouver . Portland . Sacramento . San Francisco . Las Vegas mail.bullivant.com made the following annotations - Please be advised that, unless expressly stated otherwise, any U.S. federal tax advice contained in this e-mail, including attachments, is not intended to be used by any person for the purpose of avoiding any penalties that may be imposed by the Internal Revenue Service. * This e-mail is for the sole use of the intended recipient(s) and contains information belonging to Bullivant Houser Bailey, which is confidential and/or legally privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or taking of any action in reliance on the contents of this e-mail information is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender by reply e-mail and destroy all copies of the original message. - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] AC supply for KX-1
Please post on the list. I'm interested in this as well. Thanks. From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dbellw...@aol.com Sent: Tuesday, January 27, 2009 4:42 PM To: elecraft@mailman.qth.net Subject: [Elecraft] AC supply for KX-1 I'm looking for a very small, lightweight 110/220 supply for the KX-1. Suggestions? 73, Dave, W6AQ mail.bullivant.com made the following annotations - Please be advised that, unless expressly stated otherwise, any U.S. federal tax advice contained in this e-mail, including attachments, is not intended to be used by any person for the purpose of avoiding any penalties that may be imposed by the Internal Revenue Service. * This e-mail is for the sole use of the intended recipient(s) and contains information belonging to Bullivant Houser Bailey, which is confidential and/or legally privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or taking of any action in reliance on the contents of this e-mail information is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender by reply e-mail and destroy all copies of the original message. - ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] AC supply for KX-1
I apologize. I left off my name and call sign in the heat of the rush. 73 Russ Kd7mpk Please post on the list. I'm interested in this as well. Thanks. - mail.bullivant.com made the following annotations - Please be advised that, unless expressly stated otherwise, any U.S. federal tax advice contained in this e-mail, including attachments, is not intended to be used by any person for the purpose of avoiding any penalties that may be imposed by the Internal Revenue Service. * This e-mail is for the sole use of the intended recipient(s) and contains information belonging to Bullivant Houser Bailey, which is confidential and/or legally privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or taking of any action in reliance on the contents of this e-mail information is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender by reply e-mail and destroy all copies of the original message. - ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft]K3 Open Pot on 52.450 mhz
I just checked these freqs/modes on my K3/100 (ser 732, FW 2.46, stock 2.7KHz filter) and could not duplicate this. I manually scanned from 53.3 to 52.5 and ran across a few weak birdies but nothing like what has been described here. You may want to check the archives because I seem to remember this issue coming up a few months ago but don't know what the resolution was. Russ, N3CO - Original Message - From: John Buck [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Sunday, November 09, 2008 1:21 PM Subject: Re: [Elecraft]K3 Open Pot on 52.450 mhz I confirm this on S/N 125 FW version 2.63 DATA mode on 52.445.81. The K3 is very microphonic at that frequency in Data mode. The frequency changes with SHIFT and with MODE and crystal filter XFIL selection. With 1.8k filter the tone is found at 52.447.66 at a lower level and the microphonic effect is less. With the 500Hz filter the tone is heard at 52.446.75. Just a little microphonic with the narrow filter. The frequency jumps appear to be related to the filter frequency offset setting. For me this is not an issue as long as it does not show up elsewhere, but the tone could be important for some transverter users. Oh my! Did we finally find something to complain about or will Wayne and Lyle make it go away as usual? I certainly hope this will not become a distraction from the existing to do list. Aloha, John KH7T (K3 #125, practically perfect and getting better every day) Mike McLendon wrote: I think all K3s probably do this. Mine does at 52.445.81! I suspect we are listening to the synthesizer and the vibrations a modulating the frequency via a mechanical path to the L component in the oscillator. Mike, KE4U ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3: TX Gain Problem?
Seems that I only have two tx power options. When PWR is set below13W, I get ~12 watts. As soon as the PWR knob is set at 13 or above, I get ~150 watts. I've gone through the txgn both lo hi - no ghange. K3: #869 (kit) KPA3 KAT3 KXV3 - removed, jumpers reinstalled, per Scott. -- russ moorman AI4OH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] SMD Practice
For all you fellow SMDer wannabees take a look at this site for some SMD practice material. http://www.jenrathbun.com/Electronics/Matrix.html I have no connection to this site, just ran across it in surfing. Russ, N3CO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Birdie ?
I don't work 80 meters very often but I just checked my K2/100 and I have the very same strong birdie. I never noticed this before and have had the radio for 4 years. Let us know what you find out. Russ, N3CO - Original Message - From: K2/100 S/N 838 [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Wednesday, July 16, 2008 3:03 PM Subject: [Elecraft] Birdie ? Dear Kindly List Members, Thanks for alerting me this is not normal. Yes, I do have enough savy to take the antenna off, and yes, even with a dummy load there is no difference. It is something internal in the K2/100. If no one on the list has any idea what is causing it, I'll drop a note to Gary, Don, or one of the other Elecraft experts. Thanks, TR, WB6TMY --- I am showing a very strong signal at 3590 KHz - is this normal ? Thanks, TR, WB6TMY Tel: . . . 707-832-4304 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FS K1
For sale: K1 ser 2136, with KFL1-4 (40,30,20,15M), 150KHz tuning range, KAT1 tuner, backlight, finger dimple, all manuals. $450 shipped in the continental US. Gotta pay for the K3. If interested contact me off list. Thank you, Russ, N3CO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] k3 1087 on deck
Ordered Jan 21, Katiegram June 6, on my porch June 18. Original estimate when ordered was 5 months which seem optimistic at the time but I was sure it would be worth the wait. First New rig I have ever owned. Now to wrap up an estate auction on Saturday and I can dig in. 73 kg7vq, Russ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] ANYONE HAVE SECRET TO ALIGNING?CONNECTING K# FRONT PANELTO MAAIN RF BOARD
George; Look at Fig 51 at the top of pg 37. You may be having a problem with screw on the 2D connector hitting the DSP board as shown in the right picture. I had to remove the screw as suggested to install the FP. Also there was a slight misalignment in the pins on the two connectors but I was able to shift the board a bit to get the connectors on. Russ, N3CO - Original Message - From: George Sereikas [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Wednesday, May 07, 2008 8:42 AM Subject: [Elecraft] ANYONE HAVE SECRET TO ALIGNING?CONNECTING K# FRONT PANELTO MAAIN RF BOARD I am building my K-3 and have come to the point(p 36 in instructions) where I am attempting to mount the Front Panel. I can't seem to get it on. I'm afraid to put too much pressure for fear of breaking something. Any good ideas on this from someone who has already done this? Thanks! George K2WO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- Internal Virus Database is out-of-date. Checked by AVG. Version: 7.5.518 / Virus Database: 269.23.6/1404 - Release Date: 4/29/2008 6:27 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Microphone
Gary; I too have just been using a cheap computer mic with good results that I bought for $2. Just follow the directions as described by Brendan and you should be good to go. However, if you want PTT , you will have to use an external switch. 73, Russ N3CO - Original Message - From: ei6iz.brendan [EMAIL PROTECTED] To: Gary Gregory [EMAIL PROTECTED] Cc: Elecraft list elecraft@mailman.qth.net Sent: Wednesday, April 30, 2008 4:44 AM Subject: Re: [Elecraft] K3 Microphone Garry I have been getting excellent ssb results recently using a Computer mic. Just plug it in the rear mic socket and select rear connector, Hi with Bias, if drive level is too high try rP.L bIAS instead of rP.H bIAS pretty much ANY computer mic will do. The one I use currently I bought on Ebay for a pound. Mics for the ham radio market are in the main all about marketing, if it works ok on Skype it'll work ok on the K3 Enjoy your K3, Mine prompted the sale of the Icom 7800 73 Brendan EI6IZ On Wed, 30 Apr 2008 14:13:54 +1000, Gary Gregory [EMAIL PROTECTED] wrote: Hi All, I got really excited when the K3 turned up in the post. I suppose you cannot imagine the look on my face when I opened it all up and lifted all the contents onto the bench in the shack and discovered that my K3 arrived without a microphone. I know, read the order form fully next time. Welll for 3 grand, I didn't think I had to order and pay extra for a fist mic. Kinda took the excitement right out of my sails. I live in what is called Outback queensland, Australia, not the place where I can find a spare Microphone laying around unused. The testing will have to wait a week or so now till i find a Mic. gary VK4WT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- Don‘t complain. Nobody will understand. Or care. And certainly don‘t try to fix the situation yourself. It‘s dangerous. Leave it to a highly untrained, unqualified, expendable professional. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- Internal Virus Database is out-of-date. Checked by AVG. Version: 7.5.518 / Virus Database: 269.23.3/1393 - Release Date: 4/23/2008 8:12 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: pwr rating of RG6, etc
The myths have been busted 30 years ago. I Recommend reading Walt Maxwell's Reflections or his series of articles in QST in the early 70's. Or you can just go to his website w2du.com and read the SWT Mythbuster in action. Russ, N3CO - Original Message - From: Peter Howson [EMAIL PROTECTED] Perhaps we should send this to the mythbusters and see if thay can blow it away!! Anyway, I am now going to browse my RadCom back numbers for a revision session. 73 Peter GM8GAX K2 #04027 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft in ARRL 160
I didn't make the top ten but was #3 SOLP in MI section. Could only operate about 14 hours-getting too old to stay up all night. Russ, N3CO K2/100 #4016 - Original Message - From: J F [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, April 30, 2007 8:36 AM Subject: [Elecraft] Elecraft in ARRL 160 Curious how many other Elecrafts made the Top Ten in the ARRL 160. I know Gene, KB7Q, used one, as did I... Anyone else? 73, Julius n2wn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.463 / Virus Database: 269.6.0/775 - Release Date: 4/24/2007 5:43 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Fw: [Elecraft] K1 Battery Voltage Readout Question - Blinking
Veeerrry interesting! Mine (#2136) does it also but the room has to be dark. Russ, N3CO - Original Message - From: Mike Morrow [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, April 08, 2007 12:22 PM Subject: Re: [Elecraft] K1 Battery Voltage Readout Question - Blinking I have K1 # 1423, do not see ATTN LED blinking in a darkned room. I guarantee that it does. But *only* while the LCD is displaying the battery voltage. Mike / KK5F ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KPA100/KAT100 on 160 Hi Current
Here is some more muck. I just checked my K2/100 on 160M into a dummy load and measured 14.5A @ 13.5V on my Astron RS-20M, although I'm not sure how accurate the meters are on the PS. I don't have the Kat100. I do get some strange readings on my 160 inv-v and my inv-L but that can be due to the snow and ice we have just had here in Western MI. Russ, N3CO - Original Message - From: Tom Hammond [EMAIL PROTECTED] To: [EMAIL PROTECTED]; John Reiser [EMAIL PROTECTED]; J F [EMAIL PROTECTED]; Elecraft Discussion List elecraft@mailman.qth.net Sent: Thursday, December 07, 2006 2:38 PM Subject: RE: [Elecraft] KPA100/KAT100 on 160 Hi Current Fellas: For what it's probably worth, I just checked my K2/100 on 160M into a known good BW 50-Ohm dummyload/wattmeter. At 14.2VDC supply (out of the P/S) my KPA100 draws 16A of current at a measured 100W into the dummyload. Just to muck up the discussion a bit more. 73, Tom N0SS Previous thread trail deleted to save a bit of bandwidth. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.15.14/578 - Release Date: 12/7/2006 1:27 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Com port problem
Fred; I have been using a Zonet model ZUC3100 for over a year with my K2 and both a Compaq laptop and desktop with no problems. Used it in the 160M contest all weekend with N1MM logger. It's only a 1-port but I bought mine from Newegg.com for $9.99+ph. Russ, N3CO K1 2136 K2 4016 - Original Message - From: Fred Bennett [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, December 03, 2006 12:00 PM Subject: RE: [Elecraft] Com port problem I'm using the com cable that I made when I constructed the KIO2 and I left out ALL but the standard RS232 connections when I made the cable (as per the instructions). I returned the usb-to-serial box this morningso the immediate problem is solved. With a little research I've found that the Keyspan brand of 4 port usb-to-serial gizmos seem to win ham cudos. Seeing as they cost about $130 I think I'll ask Santa for that one. I wonder when ham manufacturers will drop the durn RS232 ports and pick up USB. It seems that it is WAY past the time when this should have happened!! I wonder if ELECRAFT might decide to lead the pack with a new optionsay KUSB2?? The problem with that is Elecraft has designed in the need for RS232 by using the same cable for other modules such as the QRO tuner. 73deFred N9TA -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Julian, G4ILO Sent: Sunday, December 03, 2006 9:20 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Com port problem I would not advise using any USB serial adapter with the KIO2. The KIO2 output is not a standard serial port. There is an AUXBUS output on one of the pins. I seem to recall that a few people have damaged their K2s by using standard serial cables that had something else connected to this pin. Do you know what is connected to this pin on your USB adapter? -- Julian, G4ILO K2 #392 G4ILO's Shack: www.g4ilo.com Reply via list or www.g4ilo.com/email.html Fred Bennett wrote: Hi Gang I just came back from the local electronics superstore with a USB to 2 port serial converter made by SIIG. My aim was to get rid of the usb to serial converter pigtails cluttering up the place. The new usb-to-serial converter won't work with the K2. It works fine with my FT-990. And I have tried switching the ports (IE port1 to 990, port 2 to K2 and vice versa). During all tests the FT-990 communicates fine with the computer but the K2 does not. The K2 seems to work fine when plugged back into the USB-to-serial pigtail from a different manufacturer. There may not be a solution to this, but I thought I'd give the brain-trust here a crack before I box the thing up and take it back to the electronics superstore...that is a 3 hour round trip. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.430 / Virus Database: 268.15.6/567 - Release Date: 12/4/2006 7:18 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: Metamorphosis
That's my guess as well. I went to Dayton last year, planning on picking up a Ten Tec 6N2 xcvr. Not one in the house. Quizzed the sales fellow at the Ten Tec booth, he gave me some story about non-leaded components (parts with no lead in them) being in short supply. It seems Ten Tec tries to use low or no lead parts to accommodate product laws in Europe. Yeah, okay, whatever. Not a word was said about them discontinuing the radio. A few months later, a phone call to Sevierville confirmed the 6N2 was no more. I'm sure sales slipped because of all those DC-to-daylight rigs on the market. Why buy a 6N2 at $649, when an FT-817 could be had on the street for $50-$100 less? 73, Russ WB8ZCC Scott Richardson wrote: Perhaps a low powered 6m/2m CW/SSB with FM option rig would be a reasonable project? Something designed as a starting point for the VHF/UHF weak signal operators' basic radio. Great idea, even without the FM option. TenTec discontinued its 6n2 rig. Insufficient demand? Scott N1AIA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] mic compression
The DIP version of the SSM2165 is no longer available from ADI. Russ, N3CO K2 #4016 - Original Message - From: Donald K. Duncan [EMAIL PROTECTED] To: Nicholas Lokuciewski [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Wednesday, January 05, 2005 4:52 PM Subject: Re: [Elecraft] mic compression Does anyone know where I can get a sample of the Analog Devices SSM2165 Mic Preamp IC (as used on the K2 SSB adapter board)? Only need one or two, but the DIP packaged version would be lovely (even these young eyes have problems with SMD). I've checked the AD site and they dont advertise samples. digikey.com has the surface mount version. I don't see a dip version there. ~Don ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.6.9 - Release Date: 1/6/05 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.6.9 - Release Date: 1/6/05 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Fw: [Elecraft] 10m Birdie
I never operate 10M but just checked my K2 with the KPA100 and found the same thing with a strong birdie at around 28262. The weird thing is that when I turned off the KPA100 (reducing power below 10W) the birdie at 28262 shifted up about 1kc and the birdie at 28019 shifted down about 500c. Russ, N3CO K2 #4016 - Original Message - From: [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, January 02, 2005 11:19 AM Subject: [Elecraft] 10m Birdie In order to get a match at 28019 kHz as has been reported,= the KPA100 oscillator has to be shifted to 18434.1 Hi also have the 28029 birdie. I've also got the much stronger= 28262 birdie. I've wanted to eliminate this for some time since there a lot of= cw activity between 28025 and 28025. My KPA100 is installed on the K2. The= birdie produces about 1 s unit bar with the pre-amp on. Based on Sverre= comments, how do I eliminate the birdie? Is it merely the freq of the 18= MHz oscillator. Frank, W4FMS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.298 / Virus Database: 265.6.7 - Release Date: 12/30/04 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.298 / Virus Database: 265.6.7 - Release Date: 12/30/04 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Fw: [Elecraft] 10m Birdie
I never operate 10M but just checked my K2 with the KPA100 and found the same thing with a strong birdie at around 28262. The weird thing is that when I turned off the KPA100 (reducing power below 10W) the birdie at 28262 shifted up about 1kc and the birdie at 28019 shifted down about 500c. Russ, N3CO K2 #4016 - Original Message - From: [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, January 02, 2005 11:19 AM Subject: [Elecraft] 10m Birdie In order to get a match at 28019 kHz as has been reported,= the KPA100 oscillator has to be shifted to 18434.1 Hi also have the 28029 birdie. I've also got the much stronger= 28262 birdie. I've wanted to eliminate this for some time since there a lot of= cw activity between 28025 and 28025. My KPA100 is installed on the K2. The= birdie produces about 1 s unit bar with the pre-amp on. Based on Sverre= comments, how do I eliminate the birdie? Is it merely the freq of the 18= MHz oscillator. Frank, W4FMS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.298 / Virus Database: 265.6.7 - Release Date: 12/30/04 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.298 / Virus Database: 265.6.7 - Release Date: 12/30/04 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
