[Elecraft] New
Hi all after a few hours yesterday (most of the day) & help from my brother Jim M0CKE I now have a K3/100 up & running. QTH here is 5 miles North of Wisbech in Cambs. I'll join in the net when I can but I'm busy some Sunday mornings. Thanks Andy (M0CHK) __ 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 Band button suggestion
I've actually had the same thing happen here once or twice when attempting to record or play back some audio with my K3's DVR. I managed to change the contents of my M1-M4 freq/mode memories while fiddling with the DVR. Operator error of course. Some sort of software "lock" that can be turned on after programming your quick memories would be nice to prevent this from happening. Or maybe I should just engage my brain before hitting the keypad, hi. Enjoy your Sunday everyone! 73 Glenn ON4WIX - Original Message - From: "Erik N Basilier" To: ; Sent: Sunday, April 05, 2009 6:43 AM Subject: Re: [Elecraft] K3 Band button suggestion > Don, I used to have band stacking on my old Yaesu, and now on the K3 I > have > programmed the M buttons to select 3 frequencies in each band. You are > correct w.r.t. the number of button presses: The K3 always needs two, > while > band stacking requires anything from one to three (if limited to a "stack > depth" of 3), which makes two on the average. On the other hand, if one > has > only one favorite frequency in a band, band stacking requires only one key > press to go there. The term "stacking" might be justified by observing > that > the last stored frequency within the band is the first "on top of the > stack", but on the other hand, when one accesses successive levels on the > stack nothing pops off, but the stack contents just rotate. > > The advantage of band stacking IMHO is that you only need to use eye-hand > coordination to reach one button, and you are guaranteed to end up on the > desired band regardless of intentional or non-intentional programming. I > have yet to reach the "touch typing" proficiency stage w.r.t. the K3 > buttons, and have often re-programmed a memory button when my intention > was > to recall a band. At least once I have lost my M button programming when I > upgraded firmware. That said, I think the BAND and MODE controls are quite > convenient, and I use them as often as I use the M buttons. > > 73, > Erik K7TV > > > __ > 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.41/2040 - Release Date: 04/03/09 17:54:00 __ 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 Assembly
Frank,
it's not 'on the List' anymore, it's been implemented in F/W for quite a
while now. You can read all about it if you search for "quick memories" in
the pdf version of the K3 User Manual. You can find all details on page 16,
about halfway down the left column ("Memories 00-09 are quick memories).
Works like a charm, especially with the four "in band" memories M1-M4 which
you can use to store different frequencies & modes within each band.
Try it, I'm sure you'll like it.
73 es GL
Glenn ON4WIX
- Original Message -
From: "W6NEK"
To: "'Elecraft Reflector'"
Sent: Sunday, April 05, 2009 2:02 AM
Subject: Re: [Elecraft] K3 Assembly
> That is an outstanding suggestion Joe!
> Simple and elegant. I hope it makes it to "The List"!
>
> Frank- W6NEK
>
> - Original Message -
> From: "Joe Subich, W4TV"
> Sent: Saturday, April 04, 2009 4:27 PM
> Subject: Re: [Elecraft] K3 Assembly
>
>
>
>> All that's necessary is to set "MEM 0-9" to "Band Sel" in
>> the configuration menu. After that, M->V followed by 1
>> through 0 will recall the last used frequency/mode on each
>> band 160 -> 6 (1 = 1.8, 2 = 3.5, 3 = 7, 4 = 10, 5 = 14,
>> 6 = 18.1, 7 = 21, 8 = 24.9, 9 = 28 and 0 - 50 MHz).
>>
>> 73,
>>
>>... Joe, W4TV
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>
> This list hosted by: http://www.qsl.net
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No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.0.238 / Virus Database: 270.11.41/2040 - Release Date: 04/03/09
17:54:00
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[Elecraft] [K2] Aligning CW & SSB filters...Crystal heaters running perfect
OK I found Spectrogram 5.0 runs perfect in Wine within Linux. I aligned my CW filters per the N0SS document. All went real easy. Question though, how to align the SSB filters? What should the filter shapes look like? Is there an online document showing me what I should be tuning them for? I kind of guessed and tuned so the left skirt just went down to the low freq side of the display. I would prefer to see what they should look like when tuned properly...hi hi... BTW, I have three crystal heaters heating the PLL & both BFO crystals to 40C. So far so good, the radio is dead nuts stable now. Many thanks, Mike WE0H K2 6698 __ 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 Band button suggestion
Don, I used to have band stacking on my old Yaesu, and now on the K3 I have programmed the M buttons to select 3 frequencies in each band. You are correct w.r.t. the number of button presses: The K3 always needs two, while band stacking requires anything from one to three (if limited to a "stack depth" of 3), which makes two on the average. On the other hand, if one has only one favorite frequency in a band, band stacking requires only one key press to go there. The term "stacking" might be justified by observing that the last stored frequency within the band is the first "on top of the stack", but on the other hand, when one accesses successive levels on the stack nothing pops off, but the stack contents just rotate. The advantage of band stacking IMHO is that you only need to use eye-hand coordination to reach one button, and you are guaranteed to end up on the desired band regardless of intentional or non-intentional programming. I have yet to reach the "touch typing" proficiency stage w.r.t. the K3 buttons, and have often re-programmed a memory button when my intention was to recall a band. At least once I have lost my M button programming when I upgraded firmware. That said, I think the BAND and MODE controls are quite convenient, and I use them as often as I use the M buttons. 73, Erik K7TV __ 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 banned in Thailand / forced to sell my 2 K3s
Hi Folks: 1.) Glenn AC7ZN has a 12 W K3 with ATU and 400 Hz filter and the old manual, about 7 months old, light use. Asking $ 1499 plus shipping from UT. dix...@ieee.org 2.) David PA3HBB has a 100 W K3, ATU, 400 Hz, possibly MH-2 (died in the wool CW op, so I doubt it was used). Bought in Fall 2008 and imported to The Netherlands. No more customs duty for EU buyers! Asking 1699 without MH-2. david.r...@chello.nl Telephonic inquiries: 760 820 4490 or DL: +49 7171 941465 3.) K2 > # 6200, built by Elecraft builder Herard, PA1GP now a Silent Key. He was a perfectionist who soldered beautifully. With MH-2, 160 m RX, AF2, AT and MH-2. Remember the steep customs duty paid, so EU ops only, please. Asking 725 shipped and insured. 4.) J-38 straight key in original carboard box with U.S. signal Corps printed on. You see those on eBay or ask for photos. Asking EUR 49 shipped and insured to Europe and $ 59 to the U.S. At cost, got a few at a depot in SE Asia. One is substandard and the box was maltreated and scribbled on, this one EUR 29. kf6...@gmail.com 5.) When PA1GP died he left unfinished kits. a) SST, not sure about the band, 20 or 40m. EUR 59 shipped and insured. b) SW+ with K1SWL's enclosure, EUR 55. c) Norcal 2030. Please ask about this one. will call you back. Mni tnx es vy 73 de Chris KF6VCI / HS0ZFE / MI1ESG +1 760 820 4490 or +49 7171 941465 __ 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] FSK Issue
These symptoms are classic common mode RFI issues. Typically due to unbalanced RF on the shield of the coax coming back from the antenna. SWR has nothing at all to do with common mode - swr is measured in differential mode on the inside of the transmission line. See K9YC's information on common mode RFI at: http://www.audiosystemsgroup.com/RFI-Ham.pdf The first thing to do is properly ground the shied of the coax (and the shield of the control cable) of the SteppIR vertical where they enter your shack and then install common mode chokes between the "ground window" and the rest of the station. After that, install a choke of 6 to 8 turns on a #31 mix toroid in the FSK line between your computer interface and the Aux/Acc input of the K3. In all probability the shield of the your coax is acting like another radial on 80 meters. I'd almost bet is it very close to an odd multiple of 65 feet (as the coax runs) from the antenna to the rig. 73, ... Joe, W4TV > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave Reed > Sent: Saturday, April 04, 2009 11:25 PM > To: Elecraft@mailman.qth.net > Subject: [Elecraft] FSK Issue > > > I seem to have this recurring problem with FSK on my K3. Up > until now, the problem was intermittent, often solved by > rebooting my computer and/or reloading MMTTY. Well, without > changing anything, the problem has now become consistent, > persistent and predictable: > > > > At 0 - 22W on 80m, or any power level on 6m - 40m, MMTTY (using my > interface) will key the K3 and send normal RTTY tones using > the FSK-D data mode. > > > > At 23W and above, on 80m, MMTTY will key the K3, but I only > get the high tone. > > > > Of course, if I put the radio into test mode, I get normal RTTY tones. > > > > Am I overlooking something obvious? Going crazy? SWR > presented to the K3 is 1:1 (SteppIR BigIR vertical). > > > > AFSK works fine using the AFSK-A data mode, but I don't want > to use AFSK. > :-) > > > > 73, > > Dave, NX7F > > __ > 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
Re: [Elecraft] K3 Band button suggestion
My old and greatly inferior 756Pro had band stacking registers, and that feature essentially lets you cycle through the last three (in the case of the 756Pro) frequencies/mode with just repeated presses of the same band-select button. For example, I could set the rig to 14010 CW with a narrow bandwidth, press the 20m band-select button and set that position to 14070 USB-D with a wide bandwdith, press the 20m band-select button again and set that position to 14195 USB with a medium bandwidth, and from that point on repeated presses of the 20m band-select button would cycle through all three setups. On the 756Pro, the stacking registers were unique for each band. It was a nice feature. 73, Dave AB7E Don Wilhelm wrote: > Steve (or anyone else who knows), > > Please explain the convenience of "band-stacking" memories. I have > never used a radio with "band-stacking" memories, so I really don't know > what that means. > Is it really a 'stack' (as in programming) where one can only select the > item at the top of the stack? > If it is something different, then the term "band-stacking" should not > be used IMHO - I think it was Yaesu that first popularized the term and > I have been confused ever since. > > The K3 provides 4 random access memories for each band in the M1-M4 > buttons, and you say you want only 3, so you may use only M1-M3 if you > so choose. > > Yes, it does take a 2 button tap to retrieve the contents of any of the > M1-M4 memories, but if band-sacking memories can only retrieve the > topmost memory with any one tap, the average number of button taps > required to retrieve the desired memory with a stack depth of 3 is also > two taps. > > So please tell me that "band-stacking" is something different than a > "stack" as used in programming, and I will give up my argument and go > off on another tangent about the ills of mis-named functions on a radio. > > 73, > Don W3FPR > > __ 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 Band button suggestion
Don: Most rigs nowadays have "band stacking registers". The band selection keypad has a button for each band. Each button is capable of remembering at least 3 frequencies per band. Programming these buttons is automatic. When we switch between bands, the rig remembers the last frequency we used. Let's assume I was on 40 meters at 7250 khz yesterday but today I switched to 20 meters. When I push the 40m button, I'll land on 7250 Khz again. Later I tune down to the cw band, 7016 Khz, listen a while then jump back to 20M. Now we have 2 frequencies stored for 40 meters, one for phone and the other for cw. If I push the 40m button again, I'll land on 7015, push it a second time and I land on 7250. Eventually all bands that I used will have 3 of my favorite frequencies stored simply just by me operating and making no particular effort to program the buttons. TenTec, Kenwood, ICOM, virtually all rigs work this way. I've tried programming the M1, M2 etc. buttons but sooner or later I hit the wrong button and the whole things is screwed up. It's just not intuitive as having registers. Since the K3 doesn't have individual band buttons, there's not much you can do about it. That's why I suggested that a separate button be designated as the band stacking register button for whatever band you happen to be using. Simply push that button 3 times and you get 3 different frequencies that you have used in the past. How, you ask, did we program these frequenciesWell every time you change bands, the last frequency used is stored in that particular registry. When you go back to that band, that frequency will pop up first but the last 2 frequencies will be available by a push of the button. Hope this makes sense! I'm sure Elecraft is tired of hearing about this but lack of this feature is a very common complaint on an otherwise perfect rig. Maybe the new panadpter will have these buttons! 73 Steve Ellington n...@carolina.rr.com - Original Message - From: "Don Wilhelm" To: Sent: Saturday, April 04, 2009 11:49 PM Subject: Re: [Elecraft] K3 Band button suggestion > Steve (or anyone else who knows), > > Please explain the convenience of "band-stacking" memories. I have > never used a radio with "band-stacking" memories, so I really don't know > what that means. > Is it really a 'stack' (as in programming) where one can only select the > item at the top of the stack? > If it is something different, then the term "band-stacking" should not > be used IMHO - I think it was Yaesu that first popularized the term and > I have been confused ever since. > > The K3 provides 4 random access memories for each band in the M1-M4 > buttons, and you say you want only 3, so you may use only M1-M3 if you > so choose. > > Yes, it does take a 2 button tap to retrieve the contents of any of the > M1-M4 memories, but if band-sacking memories can only retrieve the > topmost memory with any one tap, the average number of button taps > required to retrieve the desired memory with a stack depth of 3 is also > two taps. > > So please tell me that "band-stacking" is something different than a > "stack" as used in programming, and I will give up my argument and go > off on another tangent about the ills of mis-named functions on a radio. > > 73, > Don W3FPR > > Steve Ellington wrote: >> Since we can't have band stacking and memories are too much trouble, how >> about designating one seldom used button of our choice to be the band >> stacking button. Example: We scroll to 40 meters with the usual band >> button >> then once we are on 40m, we can use that designated button to scroll >> through >> pre-programmed locations across the band such as CW, SSB, Digital etc. 3 >> spots would be plenty. To me, this seems like a good compromise. In my >> case, >> I would chose to designate the "SUB" button since I don't have the sub >> receiver or maybe the RATE button since I seldom need it. Anything would >> be >> better than using those memories! >> Steve N4LQ >> n...@carolina.rr.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 __ 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] Tone/"Low Bat" indication?
Glad that helped, Steve. You might want to continue your troubleshooting, though. I use exactly the same Alinco DM-330MV power supply with the same stock Power Pole connectors that came with the K3, and while I have considered shortening the power cable that Elecraft provides I have not yet done so. I normally have my DM-330MV set for 14.5 volts per the earlier discussions here on the reflector about SSB linearity, but I temporarily adjusted the voltage back down to 13.6 volts in receive to match your conditions. With the K3 set to 95 watts, I show 13.0 volts in transmit. At 45 watts, I'm holding 13.3 volts. I'm not sure what the difference might be, but we're getting significantly different results from the same power supply. For what it might be worth, I carefully soldered the connections between the cable and the Power Pole connectors when I assembled it. 73, Dave AB7E S Sacco wrote: > Hi Dave - > > OK, sorry for the misunderstanding; I thought you were talking about > the K3's internal battery. > > Now that we have that out of the way: > > 1) "BAT MIN" is set to 11.0 v > > 2) When I measured the voltage using the K3's internal metering: > a) It was 13.6 v at receive > b) It was 10.8 v while transmitting 95 watts output Clearly, > 10.8 < "BAT MIN" > > 3) I measured disconnected and reconnected the Anderson Power Pole > connector at the back of the K3, and the voltage increased to 10.9. > > 4) I have the power from the power supply (an Alinco DM-330MV) running > to a set of fuses before continuing on to the K3. It's one of those > gold-plated dressy looking deals that car audio folks use to bling-out > their installation (I got them cheap at Skycraft Surplus here in > Orlando about 10 years ago). >a) I removed both fuses (one for +, one for - ) and treated both > the fuse and the holder with DeoxIT. >b) At the same time, I treated the PowerPole with DeoxIT. >c) I also noted the the - lug on the back of the Alinco was > slightly loose, so I tightened it. >d) My apologies for not doing one thing at a time, and then > measuring the result; that would have been the proper procedure. >e) Upon the above treatment and actions: > i) The voltage rose to 13.7 v at receive > ii) The voltage rose to 11.4 v while transmitting 95 watts > iii) To add another datapoint, I reduced the power to 45 watts > (typical power when driving my amp) and the voltage was 12.0 v. > > Conclusion: Voltage drop due to I squared R losses. > > I didn't measure the voltage on both side of the fuses before the > DeoxIT treatment, which was another mistake in my diagnostic > approach. I did so after the treatment, and noted a voltage drop of > only .1 volt (from 12.9 to 12.8) across the fuses while under load. > > Thanks for the tip Dave; it was much appreciated! > > I've Cced the reflector, and hope this serves as a good example for > everyone to mind their connections. > > 73, > Steve > NN4X > > __ 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 Band button suggestion
Steve (or anyone else who knows), Please explain the convenience of "band-stacking" memories. I have never used a radio with "band-stacking" memories, so I really don't know what that means. Is it really a 'stack' (as in programming) where one can only select the item at the top of the stack? If it is something different, then the term "band-stacking" should not be used IMHO - I think it was Yaesu that first popularized the term and I have been confused ever since. The K3 provides 4 random access memories for each band in the M1-M4 buttons, and you say you want only 3, so you may use only M1-M3 if you so choose. Yes, it does take a 2 button tap to retrieve the contents of any of the M1-M4 memories, but if band-sacking memories can only retrieve the topmost memory with any one tap, the average number of button taps required to retrieve the desired memory with a stack depth of 3 is also two taps. So please tell me that "band-stacking" is something different than a "stack" as used in programming, and I will give up my argument and go off on another tangent about the ills of mis-named functions on a radio. 73, Don W3FPR Steve Ellington wrote: > Since we can't have band stacking and memories are too much trouble, how > about designating one seldom used button of our choice to be the band > stacking button. Example: We scroll to 40 meters with the usual band button > then once we are on 40m, we can use that designated button to scroll through > pre-programmed locations across the band such as CW, SSB, Digital etc. 3 > spots would be plenty. To me, this seems like a good compromise. In my case, > I would chose to designate the "SUB" button since I don't have the sub > receiver or maybe the RATE button since I seldom need it. Anything would be > better than using those memories! > Steve N4LQ > n...@carolina.rr.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
[Elecraft] Elecraft CW Net Announcement
Good Evening, Today was very sunny and warm (50 degrees). The first hummingbird of the season visited the windows to inform me it was time to set up the feeder for him. He buzzed the windows three times just to make sure he got my attention. Just moments ago I was phoned by the Nielson Ratings folks. They always get a kick out of finding someone with no television. This is the fifth time they have surveyed me in the last eight years. The first flowers to bloom this year were not the snow drops but rather some jonquils. For the last few years they have gotten zapped by frost so it was nice to see them get a chance to bloom undisturbed. The forecast is for a week of pleasant sunshine and warm temperatures. It will get to 70 degrees on Monday so I will be rather hot in here. But then we go back to Oregon normal for the rest of the week. Conditions on twenty meters were on and off but I was able to make consistent, if weak, contacts every day of the week. Since I was busy with a class for the ARES folks I did not have time during the evenings to check. My antenna/propagation class part one went very well. I started them off with a taste of Maxwell's equations in vector form. I wanted to make sure they were alert and awake ;) From the response I received I could have added more calculus during the rest of the lecture. So, next time I offer this class, I will give them some differential equations too. Calculus allowed me to show them things more simply than words would ever allow. Now I need to finish part two of the class which is on more practical aspects of antennas and propagation. Please join us tomorrow evening. 1) Hail signs (first letter or two of the suffix of your call) 2) NCS help (as well as QSP/QNP help) Sunday 2300z (Sunday 4 PM PDT) 14050 kHz Monday 0100z (Sunday 6 PM PDT) 7045 kHz Stay healthy, Kevin. KD5ONS - __ 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] FSK Issue
I seem to have this recurring problem with FSK on my K3. Up until now, the problem was intermittent, often solved by rebooting my computer and/or reloading MMTTY. Well, without changing anything, the problem has now become consistent, persistent and predictable: At 0 - 22W on 80m, or any power level on 6m - 40m, MMTTY (using my interface) will key the K3 and send normal RTTY tones using the FSK-D data mode. At 23W and above, on 80m, MMTTY will key the K3, but I only get the high tone. Of course, if I put the radio into test mode, I get normal RTTY tones. Am I overlooking something obvious? Going crazy? SWR presented to the K3 is 1:1 (SteppIR BigIR vertical). AFSK works fine using the AFSK-A data mode, but I don't want to use AFSK. :-) 73, Dave, NX7F __ 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] Tone/"Low Bat" indication?
Hi Dave - OK, sorry for the misunderstanding; I thought you were talking about the K3's internal battery. Now that we have that out of the way: 1) "BAT MIN" is set to 11.0 v 2) When I measured the voltage using the K3's internal metering: a) It was 13.6 v at receive b) It was 10.8 v while transmitting 95 watts output Clearly, 10.8 < "BAT MIN" 3) I measured disconnected and reconnected the Anderson Power Pole connector at the back of the K3, and the voltage increased to 10.9. 4) I have the power from the power supply (an Alinco DM-330MV) running to a set of fuses before continuing on to the K3. It's one of those gold-plated dressy looking deals that car audio folks use to bling-out their installation (I got them cheap at Skycraft Surplus here in Orlando about 10 years ago). a) I removed both fuses (one for +, one for - ) and treated both the fuse and the holder with DeoxIT. b) At the same time, I treated the PowerPole with DeoxIT. c) I also noted the the - lug on the back of the Alinco was slightly loose, so I tightened it. d) My apologies for not doing one thing at a time, and then measuring the result; that would have been the proper procedure. e) Upon the above treatment and actions: i) The voltage rose to 13.7 v at receive ii) The voltage rose to 11.4 v while transmitting 95 watts iii) To add another datapoint, I reduced the power to 45 watts (typical power when driving my amp) and the voltage was 12.0 v. Conclusion: Voltage drop due to I squared R losses. I didn't measure the voltage on both side of the fuses before the DeoxIT treatment, which was another mistake in my diagnostic approach. I did so after the treatment, and noted a voltage drop of only .1 volt (from 12.9 to 12.8) across the fuses while under load. Thanks for the tip Dave; it was much appreciated! I've Cced the reflector, and hope this serves as a good example for everyone to mind their connections. 73, Steve NN4X On Sat, Apr 4, 2009 at 8:56 PM, David Gilbert wrote: > > > The age of the battery doesn't mean much, and if it is weak it will be > while you're transmitting that the voltage will sag. To check it, all you > need to do is tap the DISP button, and then spin the VFO B knob to monitor > the battery voltage right on the K3. If it falls below the value set for > BAT MIN in the CONFIG menu, you're going to get a warning ... and probably a > glitch if the warning happens while you're sending. > > Dave AB7E > > > > S Sacco wrote: > > David - > > Given that my K3 is about 9 months old (thus, the battery is pretty fresh, > no doubt), and that it happens irregularly and momentarily, while > transmitting, leads me to suspect this is not a "low battery" condition. > Given that, I have not checked the battery. > > 73, > Steve > NN4X > > > On Sat, Apr 4, 2009 at 7:57 PM, David Gilbert wrote: > >> >> Have you checked the actual battery voltage that you're using? It seems >> to me that the K3 is trying to tell you something. >> >> Dave AB7E >> >> >> S Sacco wrote: >> >> I was working a station on 40M CW (qsk) this afternoon, and suddenly - and >> only for a moment, my K3 got stuck and put a high pitched tone into the >> speaker, while at the same time, indication "Low Bat" (perhaps "Low >> Batt"?). It then returned to normal operation. >> >> I've experienced this "getting stuck" thing a few times, but never looked at >> the display while it was happening. >> >> I'm running 3.04 right now. >> >> Has anyone seen this behavior? If so, is there a way to address it? >> >> Thank you & 73, >> >> Steve >> NN4X >> EL98jh >> __ >> 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
Re: [Elecraft] Fw: Inductive relay "kick"
Carl, If you look at the datasheet for the relay driver used in the KPA100, you will find that it does indeed have integral clamping diodes. Based on that fact, the inductive kick in the KPA100 should be almost zero, but in reality, there will still be a residual hit. I believe that saying it should never be greater than twice the relay coil voltage is quite a conservative one - we were discussing the KPA100 application in particular, not back EMF in the general.sense. You are quite correct - without clamping, and relay coils with relatively low resistance, the back EMF can grow very large. The energy in an inductor (the relay coil is an inductor) is proportional to the inductance times the square of the current, and if the relay coil resistance is low, the square of the ON current through it can be very large. 73, Don W3FPR Carl wrote: Don, seriously disagree about the magnitude of the "kick". For years I taught a course on industrial installations and demo'ed the "kick" issue by soldering two bare wire to the coil of a small Potter and Brumfield "ice cube" 12 vdc relay. I would pick the biggest guy in the class to hold the wires while I touched them to a nine-volt transistor radio battery. And then watch as he would throw the relay across the room. A reverse diode would vastly reduce the effect. Well, I got yelled at and was told "Hey, Stupid (and stupid wasn't the word they used)! Put that on a storage scope to see what you're messing with." The scope showed a spike of 450 vdc! The diode reduced it to less than 75 vdc. The magnitude is due mainly to the large inductance of the coil, but until some measurements are taken, some caution is advised. The inductance of any coil inside a K2 or K3 is bound to be much smaller. But the phenomenon is the same. 73, Carl WC0V > __ 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] OT: inductive "kick" stuff
I hope the following will help the people that aren't into electronics all that much. An inductor (relay coil, solenoid, choke, etc.) stores energy in its magnetic field. When the source of current is removed, the magnetic field will collapse back into the core at fast as it can, limited only by current flow, if any. Until current flows the voltage can reach many hundreds of times the actual supply voltage but the polarity is opposite that which created the field since the magnetic field is no longer expanding outward but collapsing inward. This is called the "flyback effect" and it is used to great advantage when you need 6V, 12V, or 200V from a 1.5V penlight battery. With a diode connected "backwards" in parallel with the coil, the diode will become forward biased when the inductor's field collapses. The energy in the collapsing field is dissipated as heat in the diode and coil winding resistance. If the diode is a silicon diode, then the (negative) voltage of the collapsing field will be limited to the normal forward diode drop (0.7V, for silicon diodes) . There is no need for a high PIV diode since the diode is reversed biased when the relay is energized and that voltage is typically low, say 12V. A 50 PIV diode would work fine. The only real criteria for the diode are that it be able to handle the current from the collapsing field. That's why you don't see signal diodes serving that function. And you don't need a "fast" diode, either. The clunky power diode will be fine. It has a lot of junction capacitance, which makes it "slow", but the capacitance is in parallel with the (theoretical) diode and NOTHING will allow the forward voltage to exceed the diode drop (0.7V, for example). The added junction capacitance only helps "eat" the collapsing field energy as it "charges" the capacitance until the diode clamps "on" in forward bias. So, what happens with a diode-protected relay is that the diode will conduct momentarily when the drive to the coil goes away. A small negative voltage (diode forward drop) will appear briefly until the stored energy is dissipated. The drive circuit sees nothing more than a small negative voltage during that time and thus the circuit is protected. Rick KC0OV __ 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 Band button suggestion
Since we can't have band stacking and memories are too much trouble, how about designating one seldom used button of our choice to be the band stacking button. Example: We scroll to 40 meters with the usual band button then once we are on 40m, we can use that designated button to scroll through pre-programmed locations across the band such as CW, SSB, Digital etc. 3 spots would be plenty. To me, this seems like a good compromise. In my case, I would chose to designate the "SUB" button since I don't have the sub receiver or maybe the RATE button since I seldom need it. Anything would be better than using those memories! Steve N4LQ n...@carolina.rr.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
[Elecraft] Fw: Inductive relay "kick"
- Original Message - From: "Carl, WCØV" To: Sent: Saturday, April 04, 2009 8:50 PM Subject: Re: [Elecraft] Inductive relay "kick" > Good point. The diode will conduct the back EMF minus internal voltage > when the supply voltage to the coil is removed. You do need a diode with a > high enough PIV rating. But even Radio Shack has silicon diodes with 1000 > PIV rating, 2 amps forward current rating at five for a dollar. > > We make electric actuators where I work, motors with internal rollerscrews > and often they get equipped with electric safety brakes (apply when power > is removed, release when power is applied). We normally supply 1N4007 > (1000 PIV rated forward bias) diodes with brake equipped motors. > > 50% of those you ask would do that. The other 50% would use a very fast > switching diode as you suggest. Both work just fine since the only job is > to conduct the EMF coming out of the coil when the actuating voltage is > removed. BUT you do need a diode with a high enough PIV rating. Some of > our bigger unsuppressed motor brake coils can spit out over 600 vdc when > the supply is removed. > > And yes some of our customers hook up the diode or the brake supply > backwards and blow the diode (if they don't blow the supply first). > Protection is gone, and the back EMF from the relay coil is free to blast > wherever it wants to go. > > I am sure the Elecraft relays are way below that. My point to Don was that > simply doubling the voltage rating of the coil to get the back EMF is way > off. A scope will tell the real tale. > > BTW I got yelled at by a medical tech who pointed out that the pain > (real - I tried the relay wire experiment myself) is the voltage going > right across your heart. To some, 450 vdc may be a very bad day. > > 73, Carl WC0V > > - Original Message - > From: "Bob" > To: "WCØV" > Sent: Saturday, April 04, 2009 2:07 PM > Subject: Re: [Elecraft] Inductive relay "kick" > > >> Hi Carl, >> >> What am I missing here? Using a regular silicon diode that >> has a fast switching time, or even better a Schottky diode wouldn't they >> clamp at the forward bias of the junction .7 volts of less. If not how >> long could you expect the diode to survive that abuse of 75v across the >> forward biased junction. If the diode then failed open you would never >> know your protection was gone. >> 73, >> Bob >> K2TK >> >> Carl wrote: >> >>>Don, seriously disagree about the magnitude of the "kick". For years I >>>taught a course on industrial installations and demo'ed the "kick" issue >>>by soldering two bare wire to the coil of a small Potter and Brumfield >>>"ice cube" 12 vdc relay. I would pick the biggest guy in the class to >>>hold the wires while I touched them to a nine-volt transistor radio >>>battery. And then watch as he would throw the relay across the room. A >>>reverse diode would vastly reduce the effect. >>> >>>Well, I got yelled at and was told "Hey, Stupid (and stupid wasn't the >>>word they used)! Put that on a storage scope to see what you're messing >>>with." The scope showed a spike of 450 vdc! The diode reduced it to less >>>than 75 vdc. >>>The magnitude is due mainly to the large inductance of the coil, but >>>until some measurements are taken, some caution is advised. The >>>inductance of any coil inside a K2 or K3 is bound to be much smaller. But >>>the phenomenon is the same. >>> >>>73, Carl WC0V >>>__ >>>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] K3 assembly / "band buttons"
Seems that this posting keeps coming up. :-) Oldie but goodie from March 2008 de Doug KR2Q http://mailman.qth.net/pipermail/elecraft/2008-March/084937.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
Re: [Elecraft] K1 problem
Mike, You probably shorted the diode in the RF Probe first, and that in turn grounded the collector of Q6, and that in turn would have placed a stress on the 12 volt input. Did you have a fuse in your power cord? That would be the first thing to check. Do you have 12 volts or more from the power supply? If so, is there voltage at the coaxial power plug? Then how about at the cathode of D16? If you have voltage (12 to 14 volts) at the places above, turn on the power switch and check for 12 volts at both ends of R5 (no need to have the band board installed for that check). How about at the collector (tab) of Q6? If you have 12 volts at all those places, check the output pin of U5 for the presence of 8 volts. If so, check for 6 volts at the output pin of U6. If all those are present, turn the K1 off, install the band board, turn it on and you should have a display of some sort. Let us know what happens. 73, Don W3FPR Michael - VE3MKX wrote: > Hi All.. Well Here is the K1 story > > I was going threw the RF section taking voltage measurements (page 5 of > trouble shooting) trying to figure out why the rig was deaf. While doing so, > silly me, I would say other words but I hit the nut/bolt assembly left > of TR-3 on the bottom of the main board with the RF probe. Then ZAP !! Now > the rig is dead, it will not on. > > Not being a technician... Any thoughts on where to start tying to trouble > shoot this new mess / problem that I just created? ;) > > Any help would be appreciated ! > > 73 Mike > > __ 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] K1 problem
Hi All.. Well Here is the K1 story I was going threw the RF section taking voltage measurements (page 5 of trouble shooting) trying to figure out why the rig was deaf. While doing so, silly me, I would say other words but I hit the nut/bolt assembly left of TR-3 on the bottom of the main board with the RF probe. Then ZAP !! Now the rig is dead, it will not on. Not being a technician... Any thoughts on where to start tying to trouble shoot this new mess / problem that I just created? ;) Any help would be appreciated ! 73 Mike __ 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] K3 Assembly
Thanks. I missed that on the errata sheet. Although it's not to clear how to set them up. You must enter a frequency in each 0-9 before it becomes active. 73, John N1JM > Yeah, band buttons would be nice if the panel were larger. > But there is a good work-around that doesn't require a > computer. If you're new here, you may have missed it. Just > use quick-recall memories 0-9. This results in two taps > instead of one (M>V, ) but it sets you up with all > variables the way you want them. All that's necessary is to set "MEM 0-9" to "Band Sel" in the configuration menu. After that, M->V followed by 1 through 0 will recall the last used frequency/mode on each band 160 -> 6 (1 = 1.8, 2 = 3.5, 3 = 7, 4 = 10, 5 = 14, 6 = 18.1, 7 = 21, 8 = 24.9, 9 = 28 and 0 - 50 MHz). 73, ... Joe, W4TV > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick Tavan N6XI > Sent: Saturday, April 04, 2009 4:41 PM > To: John N1JM > Cc: Elecraft Reflector > Subject: Re: [Elecraft] K3 Assembly > > > Yeah, band buttons would be nice if the panel were larger. > But there is a good work-around that doesn't require a > computer. If you're new here, you may have missed it. Just > use quick-recall memories 0-9. This results in two taps > instead of one (M>V, ) but it sets you up with all > variables the way you want them. > > I use this mnemonic: Memory 0=160, 1=10, 2=20, 3=30, 4=40, > 5=15, 6=60, 7=17, 8=80, 9=12. (That last one isn't really > mnemonic.) Some folks go in frequency sequence. Take the time > to set up exactly what you want in both VFOs on each band. I > put my favorite CW freq in VFO A, my favorite SSB freq in VFO > B and set up AGC and DSP parameters just the way I (usually) > like them. It's a breeze once you get it set up. > > /Rick N6XI > > On 4/3/09, John N1JM wrote: > > > > > > My only quibble is that I wish it had band buttons( and > yes, I know, > > there is software for that and I use HRD) and band stacking > registers. > > I just don't like a radio tied to a Mac(or PC) all the > time, otherwise > > I might have a Flex :-). But it sure beats my PRO3 and TS480. > > __ 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 -- View this message in context: http://n2.nabble.com/K3-Assembly-tp2584061p2587034.html Sent from the [K3] 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
Re: [Elecraft] K3 Assembly
Wow that was fast! It's already in there! Guess it's time to review all the menu settings. Who knows what other nifty things I'll find! Red faced, Frank - W6NEK - Original Message - From: "W6NEK" To: "'Elecraft Reflector'" Sent: Saturday, April 04, 2009 5:02 PM Subject: Re: [Elecraft] K3 Assembly > That is an outstanding suggestion Joe! > Simple and elegant. I hope it makes it to "The List"! > > Frank- W6NEK > > - Original Message - > From: "Joe Subich, W4TV" > Sent: Saturday, April 04, 2009 4:27 PM > Subject: Re: [Elecraft] K3 Assembly > > > >> All that's necessary is to set "MEM 0-9" to "Band Sel" in >> the configuration menu. After that, M->V followed by 1 >> through 0 will recall the last used frequency/mode on each >> band 160 -> 6 (1 = 1.8, 2 = 3.5, 3 = 7, 4 = 10, 5 = 14, >> 6 = 18.1, 7 = 21, 8 = 24.9, 9 = 28 and 0 - 50 MHz). >> >> 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
[Elecraft] Elecraft SSB Net Announcement
Hi gang, The weekly Elecraft SSB net will meet tomorrow (Sunday, 4/5/09) at 1800Z. We will start at 14.316 MHz, and QSY if needed. The net control is in western Oregon, but we will need a good east coast or midwest station to relay a few west coast signals that may be too close to net control. See you there. 73, Phil, NS7P __ 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 Assembly
Seriously, it's hard to keep up with the rate that Wayne adds new features to the radio. I've had a K3 since Jan 2008 and a quick look back at the advancement of the firmware is amazing. It's not a radio that you learn once, but on the plus side it's all documented. [Elecraft] K3 Assembly Don Wilhelm w3fpr at embarqmail.com Sat Apr 4 20:22:42 EDT 2009 Previous message: [Elecraft] K3 Assembly Next message: [Elecraft] [K3] K3 Assembly Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Frank, No need for it to go on "The List" - it is reality now. You can set it up for any combination of 'which 0-9 button corresponds to each band' - make your own decisions on that. See "Quick Memories" in the manual, the CONFIG:MEM 0-9 and CONFIG: BAND SEL in the menu listing. There is also information retaining the "last used frequency" addition in the firmware release notes. 73, Don W3FPR __ 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 Assembly
Frank, No need for it to go on "The List" - it is reality now. You can set it up for any combination of 'which 0-9 button corresponds to each band' - make your own decisions on that. See "Quick Memories" in the manual, the CONFIG:MEM 0-9 and CONFIG: BAND SEL in the menu listing. There is also information retaining the "last used frequency" addition in the firmware release notes. 73, Don W3FPR W6NEK wrote: > That is an outstanding suggestion Joe! > Simple and elegant. I hope it makes it to "The List"! > > Frank- W6NEK > > - Original Message - > From: "Joe Subich, W4TV" > Sent: Saturday, April 04, 2009 4:27 PM > Subject: Re: [Elecraft] K3 Assembly > > > > >> All that's necessary is to set "MEM 0-9" to "Band Sel" in >> the configuration menu. After that, M->V followed by 1 >> through 0 will recall the last used frequency/mode on each >> band 160 -> 6 (1 = 1.8, 2 = 3.5, 3 = 7, 4 = 10, 5 = 14, >> 6 = 18.1, 7 = 21, 8 = 24.9, 9 = 28 and 0 - 50 MHz). >> >> > __ 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] Tubes for sale
The day after March 31 maybe? Just a guess on my part. 73, Dave AB7E W0MU Mike Fatchett wrote: > LMAO > > No quite a vacuum tube anymore! What would compel someone to do that? > > > CC Packet Cluster W0MU-1 > W0MU.NET or 67.40.148.194 > > "A slip of the foot you may soon recover, but a slip of the tongue you may > never get over." Ben Franklin > > > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Wiley > Sent: Saturday, April 04, 2009 2:08 PM > To: Elecraft@mailman.qth.net > Subject: [Elecraft] Tubes for sale > > > > You _really_ can't make this stuff up: > > > http://hardocp.com/images/news/1237476767fPYMHIsYVF_1_1_l.gif > > > > This was forwarded to me by one of my friends at the ARRL. I thought you > guys might enjoy it too. I'm still laughing. > > > - Jim, KL7CC > > __ > 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 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 Assembly
That is an outstanding suggestion Joe! Simple and elegant. I hope it makes it to "The List"! Frank- W6NEK - Original Message - From: "Joe Subich, W4TV" Sent: Saturday, April 04, 2009 4:27 PM Subject: Re: [Elecraft] K3 Assembly > All that's necessary is to set "MEM 0-9" to "Band Sel" in > the configuration menu. After that, M->V followed by 1 > through 0 will recall the last used frequency/mode on each > band 160 -> 6 (1 = 1.8, 2 = 3.5, 3 = 7, 4 = 10, 5 = 14, > 6 = 18.1, 7 = 21, 8 = 24.9, 9 = 28 and 0 - 50 MHz). > > 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
Re: [Elecraft] Tubes for sale
LMAO No quite a vacuum tube anymore! What would compel someone to do that? CC Packet Cluster W0MU-1 W0MU.NET or 67.40.148.194 "A slip of the foot you may soon recover, but a slip of the tongue you may never get over." Ben Franklin -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Wiley Sent: Saturday, April 04, 2009 2:08 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] Tubes for sale You _really_ can't make this stuff up: http://hardocp.com/images/news/1237476767fPYMHIsYVF_1_1_l.gif This was forwarded to me by one of my friends at the ARRL. I thought you guys might enjoy it too. I'm still laughing. - Jim, KL7CC __ 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] K3 shorted audio IC "fix"
After discovering ... after-the-fact ... the cause of my self-inflicted audio IC failure, I found the solution hanging on my patch-cord rack. I'm now using a 1/8" male stereo plug to 2 x female phono connector patch cord and replaced the 1/8" male mono phone plug on each speaker with a male phono plug. Now I'm safe from myself. (;-) 73! Ken Kopp - K0PP elecraftcov...@rfwave.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
Re: [Elecraft] K3 Assembly
> Yeah, band buttons would be nice if the panel were larger. > But there is a good work-around that doesn't require a > computer. If you're new here, you may have missed it. Just > use quick-recall memories 0-9. This results in two taps > instead of one (M>V, ) but it sets you up with all > variables the way you want them. All that's necessary is to set "MEM 0-9" to "Band Sel" in the configuration menu. After that, M->V followed by 1 through 0 will recall the last used frequency/mode on each band 160 -> 6 (1 = 1.8, 2 = 3.5, 3 = 7, 4 = 10, 5 = 14, 6 = 18.1, 7 = 21, 8 = 24.9, 9 = 28 and 0 - 50 MHz). 73, ... Joe, W4TV > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick Tavan N6XI > Sent: Saturday, April 04, 2009 4:41 PM > To: John N1JM > Cc: Elecraft Reflector > Subject: Re: [Elecraft] K3 Assembly > > > Yeah, band buttons would be nice if the panel were larger. > But there is a good work-around that doesn't require a > computer. If you're new here, you may have missed it. Just > use quick-recall memories 0-9. This results in two taps > instead of one (M>V, ) but it sets you up with all > variables the way you want them. > > I use this mnemonic: Memory 0=160, 1=10, 2=20, 3=30, 4=40, > 5=15, 6=60, 7=17, 8=80, 9=12. (That last one isn't really > mnemonic.) Some folks go in frequency sequence. Take the time > to set up exactly what you want in both VFOs on each band. I > put my favorite CW freq in VFO A, my favorite SSB freq in VFO > B and set up AGC and DSP parameters just the way I (usually) > like them. It's a breeze once you get it set up. > > /Rick N6XI > > On 4/3/09, John N1JM wrote: > > > > > > My only quibble is that I wish it had band buttons( and > yes, I know, > > there is software for that and I use HRD) and band stacking > registers. > > I just don't like a radio tied to a Mac(or PC) all the > time, otherwise > > I might have a Flex :-). But it sure beats my PRO3 and TS480. > > __ 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] totally OT, except to the extent that it's QRP: LED lamps
wayne burdick wrote: > I haven't heard any noise from them yet. Since they run directly from > 110 VAC, I imagine it's just a bridge rectifier, a resistor, and a > filter cap. I wouldn't expect any RF noise. The LEDs need a constant current supply. Using a resistor to achieve that would significantly compromise power consumption. I would expect them to use a switch mode power supply, regulated for current, rather than voltage. That's how professional LED lighting drivers work. The electronics ought to be very similar to those in CFLs, but it will be easier to get a good ground plane. The current generation of LED bulbs are based on 3W or greater single devices, so a 6 watt device would only drop about 8 volts. A device that achieved 6 watts with large numbers of devices is obsolescent technology, although may well be all that is available on the consumer market (although, for specialised consumer markets, like bicycle headlamps, the state of the art devices are in use, as they are for commercial lighting). -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. __ 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] Tone/"Low Bat" indication?
I was working a station on 40M CW (qsk) this afternoon, and suddenly - and only for a moment, my K3 got stuck and put a high pitched tone into the speaker, while at the same time, indication "Low Bat" (perhaps "Low Batt"?). It then returned to normal operation. I've experienced this "getting stuck" thing a few times, but never looked at the display while it was happening. I'm running 3.04 right now. Has anyone seen this behavior? If so, is there a way to address it? Thank you & 73, Steve NN4X EL98jh __ 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] [KX1, LDG Z11] Builders For Hire
Hi Dan, I would be happy to solder it together for you.. and build the KX1 if you want. I have 4 AT rigs in the final stages, and one or two ahead of you... so I will be a bit slow... If I can help, I sure would. Oh.. no charge either. or I should more accurately say, for neither... just the shipping.. to and from.. ok? --... ...-- Dale - WC7S in Wy > Date: Sat, 4 Apr 2009 16:16:54 -0400 > From: daniel.pe...@fshsociety.org > To: elecraft@mailman.qth.net > Subject: [Elecraft] [KX1, LDG Z11] Builders For Hire > > I was considering building or hiring someone to build a KX-1 30/80. > > To help me with making that decision I thought I’d revisit a 4 or 5 year > old tuner kit I had on the shelf to help sort it out. I have a > progressive physical disability that has now brought me to the point > where it is hard to solder components. I have, in kit form, a partially > built LDG Z-11 Automatic Antenna Tuner. It’s two boards, 100 components, > 400 solder joints. I’ve inserted 60-70 components, wound toroids, > transformer and soldered about 10-15 capacitors with Kester 2% silver > solder. Essentially, I've put it together but can't solder it. > > I’ve tried emailing three or four people on the Elecraft “Builders for > Hire” page but have received emails bounced back as they’re obsolete. I > also called the owner of LDG who could/would not offer any assistance > but suggested the Elecraft reflector. > > Is there an Elecraft builder on this listserv who’d be interested in > finishing out this kit with me? > > Best, > > Dan, AD1P > > > > __ > 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 _ Rediscover Hotmail®: Get quick friend updates right in your inbox. http://windowslive.com/RediscoverHotmail?ocid=TXT_TAGLM_WL_HM_Rediscover_Updates1_042009 __ 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 external speaker mono v stereo plug
Jim, It is better to use the approximate ship date posted on the Elecraft website listing of K3 Mods and Enhancements. There can be a serial number differences between the factory ship K3s and the kit versions - the factory built K3 are at the factory longer after the serial number has been assigned, so the ship date is a better reference. OTOH, it is a simple matter to remove the top cover and look at the board. 73, Don W3FPR Jim Miller KG0KP wrote: > Does somebody have an approximate serial number when the erferenced "Rev B" > KIO3 bd began to be used? > > Thanks es 73, de Jim KG0KP > > __ 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 external speaker mono v stereo plug
Does somebody have an approximate serial number when the erferenced "Rev B" KIO3 bd began to be used? Thanks es 73, de Jim KG0KP - Original Message - From: "Ron D'Eau Claire" To: "'Doug Turnbull'" ; Sent: Saturday, April 04, 2009 3:31 PM Subject: Re: [Elecraft] k3 external speaker mono v stereo plug > The mod is NOT needed if you have a Rev B KIO3 board in your K3. > > It's easy to see the rev letter on your board by simply opening the top > cover. Details about how to do that are available in the mod document > here: > > http://www.elecraft.com/K3/mods/AF_Output_Mod_Rev_C.pdf > > Ron AC7AC > > -Original Message- > > Ken, > Thank you for your warning but I am now wondering if it applies to > later SN K3s. Mine is number 2574 and sure enough I have been using a > mono-plug but in the Config Menu under SPKRS 1 has been selected. The > manual indicates a preference for stereo plugs but clearly states, "If you > only have a mono plug, set CONFIG:SPKRS to 1 to disable right-channel > audio." A comment from Elecrafter might be in order to fully clear this > matter up. In the meantime my external speaker is out until a stereo > plug > is wired. Thank you for the warning. > > 73 Doug > > > __ > 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
Re: [Elecraft] k3 external speaker mono v stereo plug
Doug, others ... If you -do- have a situation where the audio IC is looking into a shorted load and still working ... remember, mine and another ran for months before the audio IC failed. With your radio turned on, remove the top cover and look inside at the extreme left top corner of the board closest to the shield. Note if there is discoloration of the edge of the board above the large IC and / or stick your finger in and touch the IC. Sniff the area for the tell-tale smell of hot glass epoxy circuit board. If it is like mine you'll test your reaction time, as the IC will most likely be far too hot to touch. 73! Ken Kopp - K0PP elecraftcov...@rfwave.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
Re: [Elecraft] Tubes for sale
Oh that's easy. You just run them through the dishwasher once in a while with the dinner plates... -Jack Brindle, W6FB === On Apr 4, 2009, at 1:52 PM, Bruce McLaughlin wrote: > Oh my gosh! I wonder how he plans to keep dust off the plates. > > Bruce-W8FU > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Wiley > Sent: Saturday, April 04, 2009 4:08 PM > To: Elecraft@mailman.qth.net > Subject: [Elecraft] Tubes for sale > > > > You _really_ can't make this stuff up: > > > http://hardocp.com/images/news/1237476767fPYMHIsYVF_1_1_l.gif > > > > This was forwarded to me by one of my friends at the ARRL. I thought > you guys might enjoy it too. I'm still laughing. > > > - Jim, KL7CC > > __ > 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 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] Tubes for sale
Oh my gosh! I wonder how he plans to keep dust off the plates. Bruce-W8FU -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Wiley Sent: Saturday, April 04, 2009 4:08 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] Tubes for sale You _really_ can't make this stuff up: http://hardocp.com/images/news/1237476767fPYMHIsYVF_1_1_l.gif This was forwarded to me by one of my friends at the ARRL. I thought you guys might enjoy it too. I'm still laughing. - Jim, KL7CC __ 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
Re: [Elecraft] [KX1, LDG Z11] Builders For Hire
I can highly recommend Doug Shields who is an engineer and does great work. Very reasonable and everything is done professionally. Doug Shields W4DAS w4...@arrl.net Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.w9dvm.com 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 W9DVM -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Daniel Paul Perez Sent: Saturday, April 04, 2009 4:17 PM To: elecraft@mailman.qth.net Subject: [Elecraft] [KX1, LDG Z11] Builders For Hire I was considering building or hiring someone to build a KX-1 30/80. To help me with making that decision I thought I'd revisit a 4 or 5 year old tuner kit I had on the shelf to help sort it out. I have a progressive physical disability that has now brought me to the point where it is hard to solder components. I have, in kit form, a partially built LDG Z-11 Automatic Antenna Tuner. It's two boards, 100 components, 400 solder joints. I've inserted 60-70 components, wound toroids, transformer and soldered about 10-15 capacitors with Kester 2% silver solder. Essentially, I've put it together but can't solder it. I've tried emailing three or four people on the Elecraft "Builders for Hire" page but have received emails bounced back as they're obsolete. I also called the owner of LDG who could/would not offer any assistance but suggested the Elecraft reflector. Is there an Elecraft builder on this listserv who'd be interested in finishing out this kit with me? Best, Dan, AD1P __ 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
Re: [Elecraft] K3 Assembly
Yeah, band buttons would be nice if the panel were larger. But there is a good work-around that doesn't require a computer. If you're new here, you may have missed it. Just use quick-recall memories 0-9. This results in two taps instead of one (M>V, ) but it sets you up with all variables the way you want them. I use this mnemonic: Memory 0=160, 1=10, 2=20, 3=30, 4=40, 5=15, 6=60, 7=17, 8=80, 9=12. (That last one isn't really mnemonic.) Some folks go in frequency sequence. Take the time to set up exactly what you want in both VFOs on each band. I put my favorite CW freq in VFO A, my favorite SSB freq in VFO B and set up AGC and DSP parameters just the way I (usually) like them. It's a breeze once you get it set up. /Rick N6XI On 4/3/09, John N1JM wrote: > > > My only quibble is that I wish it had band buttons( and yes, I know, there > is software for that and I use HRD) and band stacking registers. I just > don't like a radio tied to a Mac(or PC) all the time, otherwise I might have > a Flex :-). But it sure beats my PRO3 and TS480. > __ 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 external speaker mono v stereo plug
The mod is NOT needed if you have a Rev B KIO3 board in your K3. It's easy to see the rev letter on your board by simply opening the top cover. Details about how to do that are available in the mod document here: http://www.elecraft.com/K3/mods/AF_Output_Mod_Rev_C.pdf Ron AC7AC -Original Message- Ken, Thank you for your warning but I am now wondering if it applies to later SN K3s. Mine is number 2574 and sure enough I have been using a mono-plug but in the Config Menu under SPKRS 1 has been selected. The manual indicates a preference for stereo plugs but clearly states, "If you only have a mono plug, set CONFIG:SPKRS to 1 to disable right-channel audio." A comment from Elecrafter might be in order to fully clear this matter up. In the meantime my external speaker is out until a stereo plug is wired. Thank you for the warning. 73 Doug __ 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] Tubes for sale
__ 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] [KX1, LDG Z11] Builders For Hire
I was considering building or hiring someone to build a KX-1 30/80. To help me with making that decision I thought I’d revisit a 4 or 5 year old tuner kit I had on the shelf to help sort it out. I have a progressive physical disability that has now brought me to the point where it is hard to solder components. I have, in kit form, a partially built LDG Z-11 Automatic Antenna Tuner. It’s two boards, 100 components, 400 solder joints. I’ve inserted 60-70 components, wound toroids, transformer and soldered about 10-15 capacitors with Kester 2% silver solder. Essentially, I've put it together but can't solder it. I’ve tried emailing three or four people on the Elecraft “Builders for Hire” page but have received emails bounced back as they’re obsolete. I also called the owner of LDG who could/would not offer any assistance but suggested the Elecraft reflector. Is there an Elecraft builder on this listserv who’d be interested in finishing out this kit with me? Best, Dan, AD1P __ 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 external speaker mono v stereo plug
Ken, Thank you for your warning but I am now wondering if it applies to later SN K3s. Mine is number 2574 and sure enough I have been using a mono-plug but in the Config Menu under SPKRS 1 has been selected. The manual indicates a preference for stereo plugs but clearly states, "If you only have a mono plug, set CONFIG:SPKRS to 1 to disable right-channel audio." A comment from Elecrafter might be in order to fully clear this matter up. In the meantime my external speaker is out until a stereo plug is wired. Thank you for the warning. 73 Doug __ 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] Tubes for sale
You _really_ can't make this stuff up: http://hardocp.com/images/news/1237476767fPYMHIsYVF_1_1_l.gif This was forwarded to me by one of my friends at the ARRL. I thought you guys might enjoy it too. I'm still laughing. - Jim, KL7CC __ 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 external speakers
The AF Output mod had been made to (at least) two of the K3's that suffered the audio output IC failure, mine included. Perhaps the mod only "helps" and that's why the problem took months to come to failure. My board is slightly scorched, and the IC "burned up" on another board. The audio IC is robust, so I'm told, but can only stand so much for so long. BTW, headphone audio still works after the output IC's failure. Perhaps I'm not too smart, in that I had / have two speakers, so I chose "two speakers" from the menu. (;-). Duh! 73! Ken Kopp - K0PP elecraftcov...@rfwave.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
Re: [Elecraft] K3 external speaker
I'm using a pair of Optimus PRO 7AVs. These work well and the look of the black, all metal case matches the K3 very nicely. I have a spare pair for sale for %50.00 shipped CONUS. Please contact off list if interested. Wes N7WS --- On Sat, 4/4/09, r miles wrote: > From: r miles > Subject: [Elecraft] K3 external speaker > To: "elecraft" > Date: Saturday, April 4, 2009, 9:38 AM > I'm using an old car stereo door speaker now. Any one > tell me the source for a good speaker for the K3. Any > enclosure tips too. > > k9il > K3 #2626 > __ > 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
Re: [Elecraft] K3 external speaker
The N0SS suggested unamplified Motorola speakers are very good if you can find them at a reasonable price. If you can't ... or don't want to go fleamarket shopping there are two other options I've found to be very reasonable ... Best Buy (www.bestbuy.com) has a pair of 3-way Indoor/Outdoor speakers (3 1/2" "bookshelf" speakers) - Insignia SP3Way - for about $30 a pair. I believe they are WA6HHQ's choice ... Best Buy and Radio Shack both carry the Sony 5 1/4" two-way bookshelf speakers - Model SSB-1000 - for around $50.00. I picked up the Sony pair on sale at the local Radio shack for around $25 about a year ago. Both the Insignia and Sony are unamplified so there is no issue with RFI and no need for external power supplies. They also provide a nice "uncolored" frequency response compared to most of the small "communications" speakers. 73, ... Joe, W4TV > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of r miles > Sent: Saturday, April 04, 2009 11:39 AM > To: elecraft > Subject: [Elecraft] K3 external speaker > > > I'm using an old car stereo door speaker now. Any one tell me > the source for a good speaker for the K3. Any enclosure tips too. > > k9il > K3 #2626 __ 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 external speakers
I guess to many times hitting the "delete" key...should have been "delight" -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jay Rodaman Sent: Saturday, April 04, 2009 2:46 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 external speakers I have also had a similar need for external speakers. The recommendation from an "unnamed source (heh heh) " on the left coast was the following http://www.bestbuy.com/site/olspage.jsp?skuId=7314523&type=product&id=111884 3685964 they are not very expensive , to the delete of most of us and seem to work quite well Jay -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken Kopp Sent: Saturday, April 04, 2009 2:18 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 external speakers The following may well be obvious to most, but I know of at least three K3 owners who've been "caught" by plugging mono plugs into the (stereo) speaker jack. There is a "gotcha" involved in the use of external speakers with the K3. It's addressed indirectly on page 20 of the D2 version of the manual in the 2nd paragraph under PHONES when it reads "... if you use a stereo plug at the external speaker jack but is easily glossed over by the reader. Many / most monaural external speakers have a MONAURAL plug on their cords. DON'T plug one of these (monaural) plugs into the speaker jack. It's configured for stereo and the sleeve of the mono plug will short the ring portion of the stereo jack and thereby short one channel of audio. I ... along with several others ... have experienced a failure of the audio amplifier IC on the front panel board due to one channel being shorted by the sleeve of a monaural plug. It seems to take many hours of operation under this condition to cause the IC to fail ... over a year in mine and another's case. The IC is -NOT- an easy change! Just remember that one audio channel is on the tip and the other is on the ring of the plug and connect speakers in this manner using -only- a stereo plug. My particular "trap" was forgetting that using a stereo "Y" merely moved the "trap" six inches away from the jack. (;-) As others have pointed out, speakers from the two-radio field are good choices, and the CB isle at truck stops usually sell nice speakers. Mine are Barjan 320-701's. Radio Scrap 21-549B's are OK, too. 73! Ken Kopp - K0PP elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 __ 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 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 external speakers
There is a mod on the website to fix this problem. Check out the K3 Enhancements and Application Notes page and look for K3 AF OutPut Mod Kit. A simple installation of 2 resistors. 73, Ken K3IU W0MU Mike Fatchett wrote: > I guess I will have to check my speakers. This is a warning that should be > in bold in the manual. > > > > > CC Packet Cluster W0MU-1 > W0MU.NET or 67.40.148.194 > > "A slip of the foot you may soon recover, but a slip of the tongue you may > never get over." Ben Franklin > > > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken Kopp > Sent: Saturday, April 04, 2009 12:18 PM > To: elecraft@mailman.qth.net > Subject: [Elecraft] K3 external speakers > > The following may well be obvious to most, but I know of at least three K3 > owners who've been "caught" by plugging mono plugs into the (stereo) speaker > jack. > > There is a "gotcha" involved in the use of external speakers with the K3. > It's addressed indirectly on page 20 of the D2 version of the manual in the > 2nd paragraph under PHONES when it reads "... if you use a stereo plug at > the external speaker jack but is easily glossed over by the reader. > > Many / most monaural external speakers have a MONAURAL plug on their cords. > DON'T plug one of these (monaural) plugs into the speaker jack. It's > configured for stereo and the sleeve of the mono plug will short the ring > portion of the stereo jack and thereby short one channel of audio. I ... > along with several others ... have experienced a failure of the audio > amplifier IC on the front panel board due to one channel being shorted by > the sleeve of a monaural plug. It seems to take many hours of operation > under this condition to cause the IC to fail ... over a year in mine and > another's case. The IC is -NOT- an easy change! > > Just remember that one audio channel is on the tip and the other is on the > ring of the plug and connect speakers in this manner using -only- a stereo > plug. My particular "trap" was forgetting that using a stereo "Y" merely > moved the "trap" six inches away from the jack. (;-) > > As others have pointed out, speakers from the two-radio field are good > choices, and the CB isle at truck stops usually sell nice speakers. Mine > are Barjan 320-701's. Radio Scrap 21-549B's are OK, too. > > 73! Ken Kopp - K0PP > elecraftcov...@rfwave.net > http://tinyurl.com/7lm3m5 > > > __ > 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 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 external speakers
I have also had a similar need for external speakers. The recommendation from an "unnamed source (heh heh) " on the left coast was the following http://www.bestbuy.com/site/olspage.jsp?skuId=7314523&type=product&id=111884 3685964 they are not very expensive , to the delete of most of us and seem to work quite well Jay -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken Kopp Sent: Saturday, April 04, 2009 2:18 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 external speakers The following may well be obvious to most, but I know of at least three K3 owners who've been "caught" by plugging mono plugs into the (stereo) speaker jack. There is a "gotcha" involved in the use of external speakers with the K3. It's addressed indirectly on page 20 of the D2 version of the manual in the 2nd paragraph under PHONES when it reads "... if you use a stereo plug at the external speaker jack but is easily glossed over by the reader. Many / most monaural external speakers have a MONAURAL plug on their cords. DON'T plug one of these (monaural) plugs into the speaker jack. It's configured for stereo and the sleeve of the mono plug will short the ring portion of the stereo jack and thereby short one channel of audio. I ... along with several others ... have experienced a failure of the audio amplifier IC on the front panel board due to one channel being shorted by the sleeve of a monaural plug. It seems to take many hours of operation under this condition to cause the IC to fail ... over a year in mine and another's case. The IC is -NOT- an easy change! Just remember that one audio channel is on the tip and the other is on the ring of the plug and connect speakers in this manner using -only- a stereo plug. My particular "trap" was forgetting that using a stereo "Y" merely moved the "trap" six inches away from the jack. (;-) As others have pointed out, speakers from the two-radio field are good choices, and the CB isle at truck stops usually sell nice speakers. Mine are Barjan 320-701's. Radio Scrap 21-549B's are OK, too. 73! Ken Kopp - K0PP elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 __ 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
Re: [Elecraft] K3 external speakers
I guess I will have to check my speakers. This is a warning that should be in bold in the manual. CC Packet Cluster W0MU-1 W0MU.NET or 67.40.148.194 "A slip of the foot you may soon recover, but a slip of the tongue you may never get over." Ben Franklin -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken Kopp Sent: Saturday, April 04, 2009 12:18 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 external speakers The following may well be obvious to most, but I know of at least three K3 owners who've been "caught" by plugging mono plugs into the (stereo) speaker jack. There is a "gotcha" involved in the use of external speakers with the K3. It's addressed indirectly on page 20 of the D2 version of the manual in the 2nd paragraph under PHONES when it reads "... if you use a stereo plug at the external speaker jack but is easily glossed over by the reader. Many / most monaural external speakers have a MONAURAL plug on their cords. DON'T plug one of these (monaural) plugs into the speaker jack. It's configured for stereo and the sleeve of the mono plug will short the ring portion of the stereo jack and thereby short one channel of audio. I ... along with several others ... have experienced a failure of the audio amplifier IC on the front panel board due to one channel being shorted by the sleeve of a monaural plug. It seems to take many hours of operation under this condition to cause the IC to fail ... over a year in mine and another's case. The IC is -NOT- an easy change! Just remember that one audio channel is on the tip and the other is on the ring of the plug and connect speakers in this manner using -only- a stereo plug. My particular "trap" was forgetting that using a stereo "Y" merely moved the "trap" six inches away from the jack. (;-) As others have pointed out, speakers from the two-radio field are good choices, and the CB isle at truck stops usually sell nice speakers. Mine are Barjan 320-701's. Radio Scrap 21-549B's are OK, too. 73! Ken Kopp - K0PP elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 __ 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] [K3] 2.7 KHz filter available
Greetings all, I just finished my upgrades to my K3 (DVR, some new filters, several of the mods) and as a result I now have a surplus KFL3A-2.7K. If you are in need of a filter or are looking for a particular offset, this one is -.87 and is available immediately...contact me off list if you are intersted. Steve AD7OG K3/100 #1544 __ 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 FSK mode Newbie question
Press and hold ALT to select the other sideband. See pg 31 of D2 rev manual, last paragraph of sub-section "Data Mode Selection", which also describes the REV indication. Bob NW8L On Sat, Apr 4, 2009 at 12:12 PM, Patrick Skerrett wrote: > Trying to build an interface for FSK mode on my K3 for use with MMTTY. > > When I put the rig into data mode & then select the "DATA MD" button and > spin the sub VFO, I see the option for "FSK D" mode. > > Great, however it also comes up as "USB " and "REV". For me to decode in > this mode I have to set MMTTY to "Rev" mode. > > I thought that FSK mode would be LSB. However, I cannot figure out how > to change "FSK D" to use LSB. > > Am I just totally confused? > > Thanks. > > W9PDS > > __ > 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
Re: [Elecraft] K3 external speaker - I did what Tom did
Tom Hammond's advice was spot on. I tried three different speakers pairsand the best ones were the Motorola speakers. Lee - K0WA The New Kansas QSO Party - August 29, Sat 9am-9pm and August 30 Sun 9am-3pm CDT More Info at: http://www.ksqsoparty.org/ In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? --- On Sat, 4/4/09, r miles wrote: From: r miles Subject: [Elecraft] K3 external speaker To: "elecraft" Date: Saturday, April 4, 2009, 10:38 AM I'm using an old car stereo door speaker now. Any one tell me the source for a good speaker for the K3. Any enclosure tips too. k9il K3 #2626 __ 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] K3 external speakers
The following may well be obvious to most, but I know of at least three K3 owners who've been "caught" by plugging mono plugs into the (stereo) speaker jack. There is a "gotcha" involved in the use of external speakers with the K3. It's addressed indirectly on page 20 of the D2 version of the manual in the 2nd paragraph under PHONES when it reads "... if you use a stereo plug at the external speaker jack but is easily glossed over by the reader. Many / most monaural external speakers have a MONAURAL plug on their cords. DON'T plug one of these (monaural) plugs into the speaker jack. It's configured for stereo and the sleeve of the mono plug will short the ring portion of the stereo jack and thereby short one channel of audio. I ... along with several others ... have experienced a failure of the audio amplifier IC on the front panel board due to one channel being shorted by the sleeve of a monaural plug. It seems to take many hours of operation under this condition to cause the IC to fail ... over a year in mine and another's case. The IC is -NOT- an easy change! Just remember that one audio channel is on the tip and the other is on the ring of the plug and connect speakers in this manner using -only- a stereo plug. My particular "trap" was forgetting that using a stereo "Y" merely moved the "trap" six inches away from the jack. (;-) As others have pointed out, speakers from the two-radio field are good choices, and the CB isle at truck stops usually sell nice speakers. Mine are Barjan 320-701's. Radio Scrap 21-549B's are OK, too. 73! Ken Kopp - K0PP elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 __ 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 FSK mode Newbie question
Trying to build an interface for FSK mode on my K3 for use with MMTTY. When I put the rig into data mode & then select the "DATA MD" button and spin the sub VFO, I see the option for "FSK D" mode. Great, however it also comes up as "USB " and "REV". For me to decode in this mode I have to set MMTTY to "Rev" mode. I thought that FSK mode would be LSB. However, I cannot figure out how to change "FSK D" to use LSB. Am I just totally confused? Thanks. W9PDS __ 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] Reminder - UK Elecraft net Sundays 1000 local, 3630 KHz
The frequency is plus or minus the QRM (usually down a little from 3630). Start time 1000 hours (local) 0900 UTC. There will be several of the regulars at the Blackpool Rally this Sunday, however there will still be one or two of us around to talk to! 73 Dave, G4AON K3/100, Acom 1000, dipole __ 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] Sub-rx wont work
What about roofing filters? Are they defined well and in correct slots? I remember when I put filter to slot #5 instead of #1 and no signal from KRX3. Just idea what to check... gl 73! Lexa, ok1dst DM4iM napsal(a): > Guys, thank you for all the input. > Here's the setup > > Config: KRX3 Ant=bnc ( I have no ATU) > > 2-way antenna switch, 1st. cable to ANT1, 2nd cable to AUX > > A: Switch in position ANT1 and MAIN selected: Main RX ok, sub rx a *lot* > weaker. > > B: Switch in position AUX and AUX selected: sub-rx a little better than > before due to the 3-db increase because the antenna now is not shared > with main rx. > > C: I also hooked the 2nd cable to RX-IN and selected RX-Ant, but same > performance as B. > > What am i missing? > > > Martin > > __ 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] Sub-rx wont work
Guys, thank you for all the input. Here's the setup Config: KRX3 Ant=bnc ( I have no ATU) 2-way antenna switch, 1st. cable to ANT1, 2nd cable to AUX A: Switch in position ANT1 and MAIN selected: Main RX ok, sub rx a *lot* weaker. B: Switch in position AUX and AUX selected: sub-rx a little better than before due to the 3-db increase because the antenna now is not shared with main rx. C: I also hooked the 2nd cable to RX-IN and selected RX-Ant, but same performance as B. What am i missing? Martin -- 73, DM4iM __ 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: Firmware upgrade harder than construction...Help
I assume you have no regular serial port. Have you tried the adapter with your K3 and a control/logging program like HRD? Some usb to serial adapters are quirky. John N1JM After 10 months I decided to upgrade my firmware from the original 2.16 since I just got the KXV3 and KRX3...Frustration! Have a USB 2.0 to RS232 Serial adapter and have tried it in all my USB plugs and in Com ports 1, 2, and 4 which are shown as choices on the K3 Utility.The computer tells me my driver is correct, I've matched 9600 baud with the K3 and all I ever get is a "K3 not responding" on Com Ports 1 and 2, and "Another app connected to" Com port 4. I'd just order the CD, but that would not solve my communication from the computer to the K3. What should I try next? __ 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 -- View this message in context: http://n2.nabble.com/K3%3A-Firmware-upgrade-harder-than-construction...Help-tp2585543p2585615.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
Re: [Elecraft] Inductive relay "kick"
Carl, It appears that my K2 is the only one in the universe to have experienced this problem. We don't really know what caused the problem, but it may have been due to vagrant high-voltage under the heat sync resulting from unchecked ESD. Since the two failed caps must have been the weak links in the area, replacing the 50 volt type with 100 ought to improve things. John Date: Sat, 4 Apr 2009 10:23:29 -0500 From: Carl, WC?V Subject: [Elecraft] Inductive relay "kick" To: Cc: elecraft@mailman.qth.net Message-ID: <001e01c9b539$4f37cc70$0202a...@newdesktop> Content-Type: text/plain;charset="iso-8859-1" Don, seriously disagree about the magnitude of the "kick". For years I taught a course on industrial installations and demo'ed the "kick" issue by soldering two bare wire to the coil of a small Potter and Brumfield "ice cube" 12 vdc relay. I would pick the biggest guy in the class to hold the wires while I touched them to a nine-volt transistor radio battery. And then watch as he would throw the relay across the room. A reverse diode would vastly reduce the effect. Well, I got yelled at and was told "Hey, Stupid (and stupid wasn't the word they used)! Put that on a storage scope to see what you're messing with." The scope showed a spike of 450 vdc! The diode reduced it to less than 75 vdc. The magnitude is due mainly to the large inductance of the coil, but until some measurements are taken, some caution is advised. The inductance of any coil inside a K2 or K3 is bound to be much smaller. But the phenomenon is the same. 73, Carl WC0V **Hurry! April 15th is almost here. File your Federal taxes FREE with TaxACT. (http://pr.atwola.com/promoclk/100126575x1220239440x1201335902/aol?redir=http:%2F%2Fwww.taxact.com%2F08tax.asp%3Fsc%3D084102950001%26p%3D82) __ 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: Firmware upgrade harder than construction...Help
After 10 months I decided to upgrade my firmware from the original 2.16 since I just got the KXV3 and KRX3...Frustration! Have a USB 2.0 to RS232 Serial adapter and have tried it in all my USB plugs and in Com ports 1, 2, and 4 which are shown as choices on the K3 Utility.The computer tells me my driver is correct, I've matched 9600 baud with the K3 and all I ever get is a "K3 not responding" on Com Ports 1 and 2, and "Another app connected to" Com port 4. I'd just order the CD, but that would not solve my communication from the computer to the K3. What should I try next? __ 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 external speaker
<> Any one tell me the source for a good speaker for the K3? I'm using the West Mountain Radio "COMspkr"s and like them a lot. Reasonably priced, small enclosures, RFI resistant and allow you to enjoy the K3 AFX effects. ... Craig AC0DS __ 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 external speaker
I had a pair of FT-2000's with matching speakers. I sold the 2000's and kept the speakers. They work pretty well. Mike CC Packet Cluster W0MU-1 W0MU.NET or 67.40.148.194 "A slip of the foot you may soon recover, but a slip of the tongue you may never get over." Ben Franklin -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil LaMarche Sent: Saturday, April 04, 2009 10:00 AM To: 'r miles' Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 external speaker I have a choice of two speakers that work very well. I power the K3 through a 100 watt amplifier to two book case speakers on the wall, pointed at me. I also have he Wet Mountain radio's COMSpkr's that are under a 100.00 and really work well and sound exceptional. Google West Mountain radio. I believe they are around 50 bucks. Phil Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.w9dvm.com 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 W9DVM -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of r miles Sent: Saturday, April 04, 2009 11:39 AM To: elecraft Subject: [Elecraft] K3 external speaker I'm using an old car stereo door speaker now. Any one tell me the source for a good speaker for the K3. Any enclosure tips too. k9il K3 #2626 __ 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 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 external speaker
"R": For me, the best choice was a couple Motorola UNamplified Mobile speakers from EBay. I managed to find a matching pair of NEW speakers for $10 + shipping. You'll want TWO (2) speakers so you can take full advantage of the AFX features of the K3. My particular speakers were model HSN4018B, but I have several others which appear to be identical save for a possibly different color, which show model HSN4000A. They work great and I like having the removable mounting mounting bracket as well. Note: You could use the AMPLIFIED Motorola mobile speakers as well (lots of modification info for these on my web site at www.n0ss.net), but you really don't need the 5W-15W of amplified audio unless you're in a really noisy location. Additionally, any time you use an amplified speaker you always run the chance of getting RFI into the audio lines of the speaker... not a fun problem to have to find/fix. 73, Tom HammondN0Ss At 10:38 04/04/2009, you wrote: >I'm using an old car stereo door speaker now. Any one tell me the >source for a good speaker for the K3. Any enclosure tips too. > >k9il >K3 #2626 >__ >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
Re: [Elecraft] K3 external speaker
I have a choice of two speakers that work very well. I power the K3 through a 100 watt amplifier to two book case speakers on the wall, pointed at me. I also have he Wet Mountain radio's COMSpkr's that are under a 100.00 and really work well and sound exceptional. Google West Mountain radio. I believe they are around 50 bucks. Phil Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.w9dvm.com 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 W9DVM -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of r miles Sent: Saturday, April 04, 2009 11:39 AM To: elecraft Subject: [Elecraft] K3 external speaker I'm using an old car stereo door speaker now. Any one tell me the source for a good speaker for the K3. Any enclosure tips too. k9il K3 #2626 __ 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
Re: [Elecraft] K3 external speaker
I tried a few portable stereo speakers with subwoofers for iPods etc.. they work well for me - reasonable price (not cheap) and very nice sound - I ended up using the 'Edifier MP100' - they are powered and a little vol control on top of one of the speakers - which allows you to tailor your sound more. 73 John VE3NFK I'm using an old car stereo door speaker now. Any one tell me the source for a good speaker for the K3. Any enclosure tips too. k9il K3 #2626 __ 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 -- View this message in context: http://n2.nabble.com/K3-external-speaker-tp2585428p2585478.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
Re: [Elecraft] FW 3.06 - 6m missing
Arie, Are you changing bands from the K3 band up/dn button or are you using some software program to select the bands? 73 Greg AB7R On Apr 3, 2009, at 10:39 PM, Arie Kleingeld PA3A wrote: > Loaded FW 3.06 yesterday. All OK except > > This morning I cycled through the bands and found 6 meters missing. > I am sure that 6m is mapped in. Checked that with K3-EZ and in the > config. > > What happens is this: > Cycle up through the different bands and after the 10m band comes > 6m? No > band noise, not even with pre-amp on. > AND the display says 30.000.00 > Touching the VFO changes the display to 29.999.99 and the band noise > comes in. So probably I'm back at 10m. > > Another thing I tried was this: > Switch to config and go to the band mapping. > Cycle through the bands until you reach 6m, and yes it is mapped in. > Leave config. > Display is at 30.000.00 and K3 reacts the same as mentioned above. > > > Only band I have mapped out is 60m. > > > Am I the only one with this problem? Or maybe I've missed something. > > > 73 > Arie PA3A > K3 #1255 > > __ > 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
Re: [Elecraft] K3 external speaker
These work well: http://cgi.ebay.com/2-Motorola-Spectra-Speaker-HSN6001A-Speakers_W0QQitemZ180341919310QQcmdZViewItemQQptZ2_Way_Radios_FRS?hash=item180341919310&_trksid=p3286.c0.m14&_trkparms=72%3A1234|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A0|293%3A1|294%3A50 (copy the whole URL). 73, matt On Sat, 04 Apr 2009 11:38:56 -0400, you wrote: >I'm using an old car stereo door speaker now. Any one tell me the source for a >good speaker for the K3. Any enclosure tips too. > >k9il >K3 #2626 >__ >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
Re: [Elecraft] WTB pre-owned K3
Thanks Dale. Great to know I'm over the DZ. Hope there's no flack. Later BH P.S. Will consider a PJ K3 .-.-. From: daleput...@hotmail.com To: w7...@msn.com Subject: RE: [Elecraft] WTB pre-owned K3 Date: Sat, 4 Apr 2009 09:31:35 -0600 You're on target. Here's the place... Good Luck! --... ...-- Dale - WC7S in Wy > From: w7...@msn.com > To: elecraft@mailman.qth.net > Date: Sat, 4 Apr 2009 08:29:07 -0700 > Subject: [Elecraft] WTB pre-owned K3 > > > Hello all > > Was advised this would be a good place to start looking for a K3/100. I'm > thinking I need (?) a second one. > > TFYT > > BillHarris > > w7kxb/7 AZ > __ > 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 Rediscover Hotmail®: Now available on your iPhone or BlackBerry Check it out. __ 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] Six Meters Missing
I noticed that when cycling thru the bands after 3.06 that 30Mhz was displayed instead of a 6 meter frequency too. I simply direct entered 50.125 and all is well when cycling thru the bands from either direction. 73, Dave N8AG __ 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 external speaker
I'm using an old car stereo door speaker now. Any one tell me the source for a good speaker for the K3. Any enclosure tips too. k9il K3 #2626 __ 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] Fw: K3 2803 Firmware Problem
You can ship the radio back and have Elecraft check it out. If it is a board problem I believe they will take care of it for you. CC Packet Cluster W0MU-1 W0MU.NET or 67.40.148.194 "A slip of the foot you may soon recover, but a slip of the tongue you may never get over." Ben Franklin -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Glenn Haffly Sent: Friday, April 03, 2009 10:51 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] Fw: K3 2803 Firmware Problem The problems continue with K3 #2803 The problem is still unable to load FPF or DSP firmware. MCU loads fine. I have used two different computers in an attempt to load the firmware. On each computer I have used the KUSB and a 9 pin straight thru serial cable. That doesn't work. I have reloaded the K3 utility to make sure it is the latest version and still no luck. In numerous e mails with Gary we thought trying a new front panel board might work. Wrong , After installing a new front panel board same problem. On page 63 of the owners manual if I hold in the shift / Lo knob while turning on the power I am suppose to see EE INT. All I see is ERR EE2. The K3 is a nice looking radio and maybe one day it will work but , Right now , Very frustrated to say the least. Glenn K5ZE - Original Message - From: "Glenn Haffly" To: Sent: Saturday, March 28, 2009 9:48 AM Subject: K3 2803 Firmware Problem > Good morning all , I have a problem with firmware upload to my K3. All I > can load is MCU. The FBF fails at load address x0040. > I have used two different computers using both a 9 pin straight through > and the KUSB. I have the latest K3 utility. > When loading from a past configuration I receive an error message Verify > Failed at EEPROM address 131.224 > I have corresponded with Gary at Elecraft several times and did check > those items he suggested. As of yet , Gary's suggestion have not worked. > I have yet to get a full firmware download. Does anyone have suggestions > for me to check or does the radio have a problem and need to go > back for repair at Elecraft? > > Thank you > Glenn > K5ZE __ 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] K3: All-mode squelch suggestions
Based on FW 3.04, here's what I would like to see, so I'll toss it around: I would like a timed decay, so when the sound goes off, it doesn't do it abruptly, but with a timed decay. This will make listening more pleasant, less choppy. I'd also like ability to CONFIG a squelched volume to something more than zero, so it would still be slightly audible. In SSB mode, adjusting the SQL shows the setting numerically on the VFO B screen. In CW mode, it does not. I'm not sure I care, but I don't see why it shouldn't be consistent between those modes. There could be a CONFIG to choose whether to see it on the screen or not. Good work! Windy KM5Q K3 #764 __ 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] WTB pre-owned K3
Hello all Was advised this would be a good place to start looking for a K3/100. I'm thinking I need (?) a second one. TFYT BillHarris w7kxb/7 AZ __ 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] Inductive relay "kick"
Don, seriously disagree about the magnitude of the "kick". For years I taught a course on industrial installations and demo'ed the "kick" issue by soldering two bare wire to the coil of a small Potter and Brumfield "ice cube" 12 vdc relay. I would pick the biggest guy in the class to hold the wires while I touched them to a nine-volt transistor radio battery. And then watch as he would throw the relay across the room. A reverse diode would vastly reduce the effect. Well, I got yelled at and was told "Hey, Stupid (and stupid wasn't the word they used)! Put that on a storage scope to see what you're messing with." The scope showed a spike of 450 vdc! The diode reduced it to less than 75 vdc. The magnitude is due mainly to the large inductance of the coil, but until some measurements are taken, some caution is advised. The inductance of any coil inside a K2 or K3 is bound to be much smaller. But the phenomenon is the same. 73, Carl WC0V __ 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] OT: Home Energy Audit Website
Wayne's comments about energy savings prompts me to share the following website with everyone. This is a **very** comprehensive model developed by Lawrence Berkeley National Laboratory. I recently discovered it while investigating potential savings to convert my present air exchange heat pump to a ground source heat pump. In my case, the model very accurately (<5% error) predicted our total annual household energy usage compared to our actual electric bill (13,288 kWh per year total for all energy). The model provides estimated savings and ROI for improving energy usage options (one of which is switching to more efficient lighting as Wayne did). In my case, out total heating and cooling usage was already so low (~$500 per year) that conversion from a reasonably efficient air source heat pump (SEER 13.0) to ground source was not justified on an ROI basis. http://hes.lbl.gov/ While the heat pump conversion was not economically justifiable, I did discover one startling fact. I've been in the habit of leaving the tower computer in my shack on continuously (without going into sleep mode). Assuming 200 W/hr consumption, this amounts to 1,752 kWh per year ($185 per year at our $0.106 per kWh rate) which is a staggering 13% of my total energy bill! Needless to say I'm no longer leaving that computer on. If you carefully enter the data for your household into the model above, you may discover some cost effective alternatives for saving energy...and money. It takes awhile to enter all the data accurately but I found it well worthwhile. 73, Bill W4ZV -- View this message in context: http://n2.nabble.com/OT%3A-Home-Energy-Audit-Website-tp2585137p2585137.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
Re: [Elecraft] [K3] Sub-rx wont work
Martin - What type of antenna do you have attached to the BNC jack? Which antenna is selected with the ANT button? Are you listening in a ham band or outside? Monty K2DLJ > Guys, the Main-RX and TX of K3 #2878 are up and running, thanks to the > hints from Markus and Chen. > > But not the sub-rx. > > All plugs mated > Checked the tmp-cables > Performed the calibration > No err-msgs > Sub-RX in config-menu set to *yes, installed* > ant = bnc > > no receive, only noise like there is no antenna connected, > noise characteristics change with selected filter (Bandwith/shift) > > Faint signals from *strong* stations. > > Signals from my K2 sound ok when i transmit into a dummy load and > receive them with the K3 sub-rx. > > So the sub-rx is not dead, but deaf. > > The K3 has sub-rx, KXV3, equal filters ssb/cw on both rx's , *no* KAT3. > > Where to begin the troubleshooting? > > Martin > > -- > > 73, DM4iM > > K2 #2706 , K3 #2878 > __ > 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] [K3] Sub-rx wont work
Guys, the Main-RX and TX of K3 #2878 are up and running, thanks to the hints from Markus and Chen. But not the sub-rx. All plugs mated Checked the tmp-cables Performed the calibration No err-msgs Sub-RX in config-menu set to *yes, installed* ant = bnc no receive, only noise like there is no antenna connected, noise characteristics change with selected filter (Bandwith/shift) Faint signals from *strong* stations. Signals from my K2 sound ok when i transmit into a dummy load and receive them with the K3 sub-rx. So the sub-rx is not dead, but deaf. The K3 has sub-rx, KXV3, equal filters ssb/cw on both rx's , *no* KAT3. Where to begin the troubleshooting? Martin -- 73, DM4iM K2 #2706 , K3 #2878 __ 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] K2: KPA 100 Capacitor Specification?
John, If the voltage rating of these relay coil bypass caps is somehow being exceeded in your shipboard installation causing the caps to fail, and if you cannot find suitable higher DC voltage rated leaded replacements, you might like to consider using SMD (chip) capacitors instead. AVX include in their product line of multilayer ceramic SMD capacitors for low frequency use, as opposed to microwave rated devices, .01uF 100 VDC caps in both 0805 and 1206 sizes, and 0.015 uF caps rated at 500 and 600 VDC in 1206 packages. I have no financial interest in AVX, but do use their microwave rated capacitors. 73, Geoff GM4ESD Don Wilhelm wrote on Friday, April 03, 2009 at 3:29 PM. > John, > > I have never found one of those caps shorted, and I believe the DC > rating on them is 50 volts, so they should have an adequate safety > margin since they are used in a 12 volt DC circuit. > I have trouble imagining a condition that would cause them to fail, but > then I recall that your 'shipboard' operation is unusual and may > introduce 'perils' that I cannot imagine. > There would be no harm in replacing those capacitors with 100 volt caps > *if* you can get them to fit physically. You may have to solder them > flat against the bottom of the board. The other problem is that 100 > volt caps may be difficult to procure with 0.1 inch lead spacing and you > may have to get creative to substitute caps with 0.2 inch lead spacing. > > 73, > Don W3FPR __ 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] totally OT, except to the extent that it's QRP: LED lamps
I think that's 50, MTBF. I've got one here that stopped working after a week - I guess there is a 100,000 hour unit waiting to be picked up out there :-) Hmm. It does say 'RoHS' on the base... Pete F5VNB wayne burdick wrote: > Hi Allen, > > The new LED bulbs are rated for 5 hours, but this is a guess, > because they haven't burned out yet even in accellerated life tests :) > __ 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] totally OT, except to the extent that it's QRP: LED lamps
Perhaps the time is now right to replace domestic lighting circuits with 12V supply, then the cost of the fitments will come down, ie no need for 110/240V conversion to low dc for the leds. Safer, cheaper, more reliable, less raw materials. At those power levels, you could probably keep the original house wiring and just fit a 12V transformer/rectifier. Easier to use alternative power sources, too. Be nice if we had your prices over here. David G3UNA - Original Message - From: "wayne burdick" To: "Elecraft Reflector" Sent: Friday, April 03, 2009 9:59 PM Subject: [Elecraft] totally OT, except to the extent that it's QRP: LED lamps >I just replaced four gas-guzzling incandescent lamps in my dining room > chandelier with four LED lamps that screw into the same bases. Went > from 240 watts to 6 watts, total. > > The usual complaint about LED lamps is the cost. But prices are coming > down fast: these were only about $4 each at Costco. Each contains 21 > white LEDs, and they basically last forever, which means I won't > constantly be replacing lamps in this fixture. > > If the world converts to LED lighting, we won't need to build any more > power plants, and we can all use KW amps guilt-free :) > > Wayne > N6KR > > __ > 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
Re: [Elecraft] FW 3.06 - 6m missing
I've made some progress, thanks to the tips I got to my direct mailbox. Thanks. I'll report back later this day. 73 Arie PA3A __ 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
