[Elecraft] WTB: T1-K T1 20W ATU NON STARTED Kit
Wonder if by chance anyone may have an unbuilt T1 Antenna Tuner tucked away they aren't going to build - if so I'm looking for one. Please contact me off list Dan - KI4YZE __ 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: T-I Antenna Tuner Built or Kit
If you have one for sale I'm looking for one - please contact directly. Thanks Much Dan - KI4YZE __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] For Sale: K2 KIT and KIO2 NOT STARTED with all DOCS
K2 serial# 003943 and the KI02 AUX IO module - THIS KIT HAS NOT BEEN OPENED (other than the box it was shipped in) and has NOT BEEN STARTED. All paperwork included and all in the same box with the kit Want to sell both together as a package. Will sell for 10% off of the current prices PLUS shipping costs if anyone interested please contact me off list or call me on my cell. Thanks much Dan - KI4YZE Cellphone = 770-377-6000 Email = dan.boardman AT shreditfast.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] k2 warping
__ 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] K2 warping
I just hate the new Verizon email format. Here I go again! My K2 has developed a warping issue. Recently completed and finally totally assembled the unit does not set flat on the desk or stand. It wobbles. I have loosened the 3d connector screws, set heavy books on the rig on a marble top table and then re-tightened the screws. The rig then sits flat with no wobble. The next morning the warp is back. Has anyone had this issue? Thanks in advance for your input. 73 Daniel Grizzard Extra Class af4lb __ 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] kat2 question
Hello all, I have completed the assembly of my kat2 and am at the testing phase. The question is: I hear relay clicking when going thru the display settings for L0-L8, C0-C8, N1 N2, but NOT for CALn,CALP, CALS, AUTO, ALT and POUT. Is this normal? Thanks in advance 73 Dan Daniel Grizzard Extra Class af4lb __ 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] kat 2 t1 txfmr
I have the T1 transformer wound and installed on the Kat2 board and have a question of the 1 turn winding. Cut and stripped as directed the wire dies not pull down tight against the T1. There is a LOT of air between the wire and torroid. Is this correct in that the wire does not touch the torroid? 73 Dan Daniel Grizzard Extra Class af4lb __ 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] kat2
Hello all, I just started the inventory of parts for my kat2 and all is going well until I got to the 102 caps. For the life of me I cannot determine the two smaller ones! I have lined them up with a ruler on a marble top table and looked at them from all angles. All 26 appear to be the same size. Any suggestions? Secondly, thetwo trimmer potentiometers are listed at 100k but 150k was shipped. A problem? 73 all Dan Daniel Grizzard Extra Class af4lb __ 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] ssb module or atu first?
__ 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] kat2 or ssb module first?
I have my K2 up and running nicely now for several months and now want to build and install my ssb and automatic tuner modules. Any suggestions which to do first? I don't want to have to remove one to install the other. 73 Dan Daniel Grizzard Extra Class af4lb __ 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] Icom failure to update USB
Not trying to start another thread here, but here is just ONE example of why Elecraft continues to use the RS-232 I/O. Gee, Win7 has been out quite a while. This from the IC-7600 reflector: Dan -- N3ND 1a. Re: Silicon Labs CP210x USB to UART Bridge driver Posted by: Cameron Platts cpla...@verizon.net camplatts Date: Thu Dec 16, 2010 8:52 am ((PST)) Hi John, I should have identified that I am using Windows 7 x64 as the operating system; officially ICOM has not released USB drivers for Windows 7 as of this email. Hopefully the level issue will be addressed with the new release. 73es, Cam __ 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 Noise Reduction Improvement
I'd have to agree with you, Roy. In a moment of weakness many months ago, I purchased an IC-7600. While it's a nice radio, it is NOT a K3 nor would I ever use it in a contest or try fighting a pile-up with it (unless it was the only radio available). That said, with all the 7600's lackluster features, the Noise Reduction (NR) on the ICOM far, even greatly exceeds the NR in the K3. The noise reduction itself, the quality of (remaining) signal (QoS), and its ease of use is a marvel and my benchmark NR behavior. While in the K3 you can usually find a decent NR setting, by no means is it easily configurable with it's convoluted algorithm scheme nor is the resultant QoS as clean. My opinion only; YMMV. 73, Dan -- N3ND Date: Sun, 28 Nov 2010 16:27:56 -0500 From: Roy Morris w4...@carolina.rr.com Subject: [Elecraft] K3 Noise Reduction Performance To: elecraft@mailman.qth.net I have two K3s and the NR is the same on both. If I had to identify a feature on the K3 that needs improvement, I would have to say it is the NR. I cannot find a noise reduction setting that is suitable to me. I realize this is a subjective, and you would have to compare the K3s noise reduction with that of another radio. I have owned the Ten-Tec Omni VII which in my opinion has the best NR on SSB without a doubt. I believe it is all in the NR programming and how the algorithms are set up. There has been considerable improvement from the time the K3 was introduced, but I believe there is still room for further improvement. I would like to see noise reduction with a minimum loss of signal fidelity.Roy Morris W4WFB __ 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: USB port
I can understand why a lot of old timers want to stay with serial port for the K3. Many people just don't like change. The simple fact is the world has moved on Something like 15 years ago. USB is the standard and a product like the K3 which In many ways is cutting edge should move on also. When was the last time you saw a new computer with serial port or a floppy drive? It can't be that hard to change to USB. There are plenty of $10 items that support it So it must be cheep. I figure it is a lack of will on Elecraft's part. As to the negative comments...Can't and won't never did anything. Dan N0DT -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Sent: Thursday, November 18, 2010 6:51 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3: USB port I'm not sure how you envision moving the audio to USB. I think putting the USB port in the K3 would open a Pandora's box re: drivers. If you're asking to just move the serial to USB adapter into the rig, there is NO gain. If you're asking to do away with serial port comms entirely and go to USB only, you're creating a huge hassle for the software authors, as well as opening a Pandora's box re: drivers for it. 73, Mike NF4L __ 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 Power off (subject change)
Unintentionally powering-off the K3 has happened to me many times and I am just lucky, I guess, that I've seen no problems with a quick response power-on. This almost begs that powering-off the K3 be changed to a long hold as opposed to instantaneous. Indeed, it could be a long hold for both power-on and power-off. Just my opinion. Dan -- N3ND -Original Message- From: Bill VanAlstyne W5WVO w5...@cybermesa.net To: [Elecraft] elecraft@mailman.qth.net Sent: Wed, Oct 6, 2010 2:19 pm Subject: [Elecraft] [K3] Speaker output amp kaput I recently fried (I believe) the speaker amplifier in my K3, apparently by just turning off the radio and turning it back on too quickly. Perhaps the fact that the AGC was disabled at the time might have had something to do with this, though that is just a guess. I accidentally turned off the K3 by pushing the POWER button by mistake, and, cursing my klutziness, immediately pushed the button again to turn it back on, as I was in the middle of a QSO. The radio came back on -- but sans speaker. It has been dead ever since. Configuration settings have been double-checked. It's not a catastrophe for me, because I normally use headphones anyway, but I'd like to get it fixed. Since I'm not reading every post on the list these days, I have probably missed something about this, because I dimly recall seeing some subject headings about the speaker amplifier. I didn't read these. Is this a user-replaceable part? If so, what is involved? And if this part is blowing up regularly, why is it so fragile? Is there something that can be done to better protect it? My K3 was recently (couple months ago) updated at the factory with all applicable mods. Bill W5WVO New Mexico __ 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] Repeat
Repeat after me. I will never again run a RTTY Contest without a P3. Dan -- N3ND __ 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 D Mode: possible Bug?
Same issue here. Happened twice during the contest. No known reason for occurrence as I had not touched the radio - except it went from TX to RX on a frequency a short way away. FSK D mode. Dan -- N3ND -Original Message- From: Richard Ferch ve3...@storm.ca To: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Sun, Sep 26, 2010 8:39 pm Subject: Re: [Elecraft] K3 FSK D Mode: possible Bug? I can confirm - I observed the same thing while setting up the radio for the contest on Friday and making a test QSO using the radio's memory buttons. I had the LP-PAN and PowerSDR running, but no radio control software. I called someone using the memory buttons by pressing M1 twice, and found the receiver was suddenly listening somewhere else. I was able to recover quickly enough to complete the QSO. I chalked the whole thing up to having unwittingly bumped a button or knob somewhere, but in hindsight I can see that in as many details as I can remember, which is nowhere near the level of detail in John's description, it did appear to be exactly the same as John is reporting. 73, Rich VE3KI K3 #1595, F/W 4.12 N6JW wrote: I think I may have discovered a (rare) bug in the firmware, that has been 'bugging' me for a long time! If I am right, I believe this issue could have been there from the beginning. I have K3 #936 and I noticed the problem early on (but had no idea what was happening). I would very much appreciate it if others could check it out and perhaps confirm what I am experiencing; thus ruling out the likelihood that it is unique to my rig/situation. __ 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] P3: QSY knob mod (front panel)
Nice idea, but on my front panel (#520), the silk screened TAP=QSY is already partially covered by the oem knob. Adding a larger knob (or cover) may hide it completely. Regardless, I find the knob OK for my finger size, anyhow. Elecraft has changed the front panel on the P3 since it's introduction and marketing photos. On #520, the display is higher in the cabinet and the Elecraft P3 silk screening is below the TFT display.There was apparently a change in the display board itself as the mounting screws would have to be in different locations to achieve this. I thinking when these new front cabinet panels went into production, the silk screen for Select, TAP=QSY was lowered (accidentally?) and it is now partially covered by the knob. It's just a visual oddity and my only complaint with this superb product. Dan -- N3ND -Original Message- From: Gary Gregory garyvk...@gmail.com To: Bob Cunnings bob.cunni...@gmail.com Cc: Elecraft Reflector elecraft@mailman.qth.net Sent: Sat, Sep 18, 2010 10:01 pm Subject: Re: [Elecraft] P3: QSY knob mod Hmmm, mind if I steal your idea?...:-) Gary On Sun, Sep 19, 2010 at 11:51 AM, Bob Cunnings bob.cunni...@gmail.comwrote: I use the P3 with a fairly wide span to spot and pounce on signals in the CW bands. The P3 is near the edge of the table and I find myself most comfortable when placing the heel of my hand on the table edge and twirling the QSY knob with the index and middle fingers to move the cursor around the band. This was hard to do with the stock knob, it seemed a bit small and I needed a little more friction also. While rummaging around in a drawer I found a couple of those dipped vinyl protective caps used made to fit SO-239 connectors was inspired. One of these fits snugly over the P3 QSY knob. It fattens the knob considerably and offers a lot more friction. I can twirl away effortlessly now, and tapping is easy too. Here's a photo link: http://www.whitemesa.com/nw8l/images/p3-knob.jpg Bob NW8L __ 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 -- Gary VK4FD - Motorhome Mobile http://www.qsl.net/vk4fd/ K3 #679 For everything else there's Mastercard!!! __ 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] P3: QSY knob mod (front panel)
The knob on my P3 is the same as the RIT knob on the K3. If you look straight on (eye leveal) at the P3 (mine), then parts of the A, P, =, and Q are masked by the knob skirts. If I am looking from a position where the P3 is below eye level (parallax), just part of the Q is masked. Very interesting that yours is not. Dan -- N3ND -Original Message- From: Bob Cunnings bob.cunni...@gmail.com To: elecraft@mailman.qth.net Cc: Dan Atchison n...@aol.com Sent: Sun, Sep 19, 2010 12:45 pm Subject: Re: [Elecraft] P3: QSY knob mod (front panel) Interesting. I have P3 #74 and #498, which both have the Elecraft P3 lettering below the display, but the TAP=QSY lettering is in the clear. Perhaps #520 came with a larger knob, which now covers up part of the lettering? The knobs on my units are the same size as the K3 RIT knob. Now that you mention it, the P3 knob in the marketing photo is smaller than the RIT knob in the companion K3. Bob NW8L On Sun, Sep 19, 2010 at 7:19 AM, Dan Atchison n...@aol.com wrote: Nice idea, but on my front panel (#520), the silk screened TAP=QSY is already partially covered by the oem knob. Adding a larger knob (or cover) may hide it completely. Regardless, I find the knob OK for my finger size, anyhow. Elecraft has changed the front panel on the P3 since it's introduction and marketing photos. On #520, the display is higher in the cabinet and the Elecraft P3 silk screening is below the TFT display.There was apparently a change in the display board itself as the mounting screws would have to be in different locations to achieve this. I thinking when these new front cabinet panels went into production, the silk screen for Select, TAP=QSY was lowered (accidentally?) and it is now partially covered by the knob. It's just a visual oddity and my only complaint with this superb product. Dan -- N3ND __ 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] P3: QSY knob mod (front panel)
Then I have a one of a kind. How lucky am I and who want's to buy it for $2K? Dan -- N3ND -Original Message- From: Ken Kopp k...@rfwave.net To: bob.cunni...@gmail.com; elecraft@mailman.qth.net; Dan Atchison n...@aol.com Sent: Sun, Sep 19, 2010 2:31 pm Subject: [Elecraft] P3: QSY knob mod (front panel) TAP=QSY isn't obscured on P3 #56, and the knob is the same as the RIT/XIT knob on the K3. 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 __ 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 - Can't seem to make LINE-OUT work properly
Awaiting Elecraft support answer at this point. Thanks for help so far. Dan NM3A -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Can-t-seem-to-make-LINE-OUT-work-properly-tp3888248p5530397.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] Setting RS232 baudrate
And, I'm sure the P3 communicates with the K3 for a reason. Why would you want to communicate at a lower speed, anyway? Dan -- N3ND -Original Message- From: Dick Dievendorff die...@comcast.net To: 'Dick Dievendorff' die...@comcast.net; 'Dick Grolleman' groll...@planet.nl; elecraft@mailman.qth.net Sent: Tue, Sep 14, 2010 10:11 am Subject: Re: [Elecraft] Setting RS232 baudrate I didn't read your note carefully enough. As W4TV correctly points out, the P3 to K3 speed is always 38400. The PC to P3 speed can be set to 4800 using the P3 front panel or the BR command. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dick Dievendorff Sent: Tuesday, September 14, 2010 6:22 AM To: 'Dick Grolleman'; elecraft@mailman.qth.net Subject: Re: [Elecraft] Setting RS232 baudrate Dick, try this to set your speed to 4800: Start the K3 Utility. On the Port tab, press Test communications. The K3 Utility should find the radio at any of the supported speeds. Go to the command tester tab. Type BR0; (including the semicolon, but not the quotes) to choose 4800 bps. Go to the port tab and press Test communications. Hopefully the radio will be at 4800 bps. Press the K3 power button to turn it off. During power-down, the K3 should write the current selected speed to EEPROM for the next power up. Press the K3 power button to turn it back on. Press test communications. The radio should now be at 4800 bps. 73 de Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dick Grolleman Sent: Tuesday, September 14, 2010 6:11 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Setting RS232 baudrate HI ALL Just installed version 4.05 in my K3 to run my P3 as well I always used the microkeyer at 4800 baud from the K3, but I'm not able anymore to set any other speed in the K3 as 38400. Yes I can change it, but the radio does not store it when I leave the menu. And I just can't get it to work on 38400, don't know why. So now my micro keyer is not reading the Radio any solutions? 73 de Dick PA3FQA __ 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 __ 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 - Can't seem to make LINE-OUT work properly
Joe, Thank you for your insight. Audio coupling to the microphone was INDEED the culprit. Turns out the input line on the notebook was bad and needed repairs. I also needed to turn off the microphone to make sure it does not interfere. Actually was the Laptop's own mic picking it up, not something plugged into it. I recorded the LINE-OUT from the K3 and it is working as spec'd. No issue with the K3 at all, just operator error! Thanks again Joe! Issue resolved. Dan NM3A Check your soundcard. This report pops up occasionally and the user has a microphone/VoIP headset plugged into the mic input of the soundcard. Windows will automatically select the mic input of a soundcard if it detects a mic connected (or the built-in mic in many laptops). When this happens, one is getting acoustic coupling between the transceiver speaker and the microphone input of the soundcard. 73, ... Joe, W4TV -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Can-t-seem-to-make-LINE-OUT-work-properly-tp3888248p5532005.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 - Can't seem to make LINE-OUT work properly
I am having the same problem. Hooked up to Line Out, set LIN OUT = nor 010, but line output still dependent on AF gain setting. Only have main RX, not SUB installed. Works well with fl Digi, but must set AF gain for it to work. Anyone else have any ideas? Dan, NM3A Denis Jackson-2 wrote: Fairly new K3 owner here - just getting set up for digimodes. I'm probably doing something stupid but... I can't seem to make line-out do what it should. I have visited lin out in the Config menu and set a value (10) rather than =phones and yet the level on the line-out jack is still dependent on the front panel AF Gain control. Any ideas what I've missed? 73 Denis MW0CBC / GW8OQV __ 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://elecraft.365791.n2.nabble.com/K3-Can-t-seem-to-make-LINE-OUT-work-properly-tp3888248p5524582.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 - Can't seem to make LINE-OUT work properly
Thank you Don for your quick reply. However, I HAVE it set to 'nor' and it still is dependent on AF levels. I have tried to switch it to Phones just to see what difference it makes and I see no difference. I am hooked up to jack on KIO3 which is closest to the side panel with a stereo cable connected to my LINE IN of my computer (Win XP Pro). Still gives widely varying inputs to the computer when AF is rotated. Believe me, I have checked the manual in many places, including the pictures on page 4 and page 57 and page 20 before I emailed. Checking MIC + LIN it says 'not appl'- not sure what this is or why it says this. Is this relevant to the question? Dan NM3A -Original Message- From: Don Wilhelm w3...@embarqmail.com To: Dan n...@mail.com Cc: elecraft@mailman.qth.net Sent: Mon, Sep 13, 2010 12:01 am Subject: Re: [Elecraft] K3 - Can't seem to make LINE-OUT work properly Dan, See the manual page 57. If you have LIN OUT = Phones, the output level will be controlled by the AF Gain Control. Set it to nor which will be a fixed level dependent only on the menu parameter value. 73, Don W3FPR On 9/12/2010 7:43 PM, Dan wrote: I am having the same problem. Hooked up to Line Out, set LIN OUT = nor 010, but line output still dependent on AF gain setting. Only have main RX, not SUB installed. Works well with fl Digi, but must set AF gain for it to work. Anyone else have any ideas? Dan, NM3A -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Can-t-seem-to-make-LINE-OUT-work-properly-tp3888248p5524659.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] KPA-500 Features and Pricing
Yeah, but . . . . . . . . We've accepted this for years, reference ETO and Alpha Amplifiers. And yes, I am a yuppie. Dan -- N3ND -Original Message- From: Joe Subich, W4TV li...@subich.com To: elecraft@mailman.qth.net Sent: Thu, Sep 9, 2010 11:28 am Subject: Re: [Elecraft] KPA-500 Features and Pricing Phil, Jack You are soo mean... Stupid Yuppies... While Stupid Yuppies may be a bit harsh, Jack has an excellent point on the price/performance point of the KPA-500 based on the current whisper price. Yes, the KPA-500 we've been seeing at the hamfests has some interesting features but it is hard to justify a nearly 100% premium over the ALS-600 for a smaller form factor, six meters, QSK, and the Elecraft nameplate. 73, ... Joe, W4TV On 9/9/2010 10:46 AM, Phil Townsend wrote: Ewww, Jack You are soo mean... Stupid Yuppies... Come on Jack, why so angry at a great USA company that ACTUALLY builds some great products? Phil Santa Fe It looks like Elecraft may be abandoning their traditional most bang for the buck market position in favor of selling over priced matching accessories to stupid yuppies. Unlike the K3, a $2000 500W amp is not going to be in the best value position in anyone's analysis, although I'm sure they will sell a few to the true believers. Currently, used prices for ALS-600's run $800 to $900 and ALS-1300's are showing up for sale at $1800 to $2000. In my case, there is a finite amount of money available for radio station enhancements. When I can buy a solid state MFJ for ~$1.50/watt or an older no-tune ETO Alpha for ~$1.00/watt, a $4.00/watt Amp that's principal virtue seems to be matching my K3, doesn't have a snow balls chance in Hades of ever gracing my desk. But maybe the rumored ridiculous price point is just a smoke screen and the real product will show up with a more palatible price. 73 Jack KZ5A K3 #4165 On 9/8/2010 2:12 PM, K4SC wrote: After 45 years on the air, I'm finally getting an itch to bump my power over 100 watts; 500 - 600 watts seems like a reasonable amount of 75 meter power for me. I'm seriously looking at amplifiers and tuners, but hesitant to make a purchase decision before getting at least some warm fuzzies about the KPA-500 pricing and availability. Been looking at a lot of new and used tube based amplifiers and 1KW tuners; getting the sense that I could spend upwards of $1500 for anything decent. If the KPA-500 is going to sell for close to that figure, or less of course, I can probably keep my money stashed and wait a few more months. It sure would look nice next to the K3 P3. If, however, the KPA-500 is going to cost much more than $1500, I will probably go the tube route. So, what I'm hoping to get from someone in the know is a ballpark figure on the KPA-500. I assume the antenna tuner is built in, and not an additional cost. If that isn't the case, then knowing the ATU cost would also be helpful. __ 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 __ 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] KAT3 Auto Tune
The past week, my K3 ATU has not tuned to a nominal 1.5 or less SWR on 40M only. Today, I tried to clear the ATU memorized settings, but they didn't seem to be removed. I then went into manual setting the ATU and was successful in finding a 1:1 match. Exiting the manual mode, I was then about to Auto Tune to a 1:1 SWR. So, the question is why? Does the Clear settings function not work? Dan -- N3ND __ 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] K2 UPGRADE
IM THINKING OF ADDING THE 100W AMP TO MY K2 SR# 6324... CAN SOMEONE EDIFY ME ON IT. I BOUGHT THE K2 ALREADY ASSEMBLED .. NEAT RIG... BUT WOULD LIKE A LITTLE MORE JUICE ONCE IN A WHILE... AM I RIGHT THAT:1. I WILL NEED A PWR SUPPLY ..I IMAGINE THE ANSWER TO THAT IS OBVIOUS OF COURSE. TAKES A COUPLE AMPS TO GET 100W.. THATS OK ...2. CAN YOU SWITCH BETIX QRP/BATTERY OP... THEN TO 100W WITH POWER SUPLY. SIMPLY !!!.3. HAS ANYONE DRIVEN A BIGGER HI PWER AMP (i.e. ameritron) WITH A K2 100.? ...AND HAS THAT WORKED OK? ... ... IM LIVIN IN A RV AWAY FROM MY HOME QTH DIGS WILL NEED SOMEONE TO DO THE WORK.. IN A COUPLE MONTHS.. THANK YOU VERY MUCH73 DANNO Hard work pays off in the future, but laziness pays off now. __ 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] Handle replacement on K3
Although, properly designed and tightened fasteners should not come apart when you don't want them to, in practice any screw can come loose at any time. Whenever I put together any screw or bolt that I do not expect to take apart routinely, I use Loctite or fingernail polish to 'lock' it in place. When I built the K3 (#4515), I used that on a few screws/nuts, specifically, the handle, the feet, the support bail and the ANT1 and ANT2 hold down screws/nuts. I wouldn't go out of my way to use the stuff, but if you have any problem, just use that. I did not use them on any connector that needed good electrical connections or that I expect to take apart from time to time, e.g. covers, side panels, stand-offs. Best way is to put a drop on the threads INSIDE the nut and then attach it and tighten it, then place a drop on the exposed screw/bolt threads. If you are concerned about electrical connection, then only place it on the exposed screw/bolt threads after tightening it. For the handle, feet and bail, electrical connectivity are not a concern and you will never expect to need to remove these items. IF you DO need to remove them, they can be removed with only a moderate amount of extra effort and it does NOT destroy the threads. To be thorough, there are two different types of Loctite. The usual is designed as described above and is essentially fingernail polish. The other type is a much stronger type for where a near permenant bond is required. This may destroy the nut/bolt if removed, altho some (epoxy) types are designed to be removeable after heating to 400 degrees. Dan NM3A -- View this message in context: http://elecraft.365791.n2.nabble.com/Handle-replacement-on-K3-tp5449432p5453005.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] Product Suggestion Big Box K3
Me too, I sold my K3, and my next transceiver purchase will definitely be a big box with a built-in bandscope, better audio, and with more dedicated controls (not as many multi-use buttons). It would be great if Elecraft would offer such a product. With their fantastic customer service, I think Elecraftwould attract many (if not most) Icom and Yaesu customers who would prefer an American alternative, if only they would address the market differently. Having the best performance and specifications from a technical standpoint is obviously a big plus, but for many hams, there is more to enjoying a radio than technical performance alone. Also, I may be wrong, but I don't think portability is a major issue for most hams. I know than many hams think that the K3 is nearly perfect just the way it is. My opinion is that a slightly larger radio with better ergonomics, an updated display, and better audio would not diminish the appeal of this magnificent radio, but would enhance it; and would reward Elecraft with an excellent market share. Dan On Mon, Aug 9, 2010 at 1:23 PM, Nicholas Farrar nfar...@bfpacs.com wrote: Count me in. Basically it would be the same guts with a new display, power supply and amp. Maybe a larger forward facing speaker! I have to say I HATE the built in speaker. I personally would be happy with a stand alone Elecraft power supply but this would be just as intriguing. -- Nicholas W. Farrar __ 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] Big box K3
Of the things I thought I'd dislike the most about the K3, it was its size. Having been a big box user for so many years, I thought I'd never adapt. Eat those words. The thing I DO like most about the K3 is its size. It freed up so much real estate that my shack became much more ergonomic than prior renderings. Oh, and what were the other things I thought I'd dislike about the K3? Darn if I remember. Dan -- N3ND __ 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] K3DVR vs CW Memories
Iain: I missed that. It's even easier than I thought. Many thanks! Dan -- N3ND -Original Message- From: Iain MacDonnell - N6ML a...@dseven.org To: Dan Atchison n...@aol.com Cc: btipp...@alum.mit.edu; elecraft@mailman.qth.net Sent: Wed, Aug 4, 2010 11:02 pm Subject: Re: [Elecraft] K3DVR vs CW Memories I you enable the N1MM Logger COM port option Radio PTT via command, the Escape key will cancel KDVR3 playback. This is covered in my notes. ~Iain / N6ML On Wed, Aug 4, 2010 at 11:58 AM, Dan Atchison n...@aol.com wrote: Yep, I use this exclusive. Works great, lasts a long time. Only issue is that the ESC button does not stop the audio transmission, but I fix that problem by re-mapping an unused contesting key to emulate a REC button press (the button in the center of the memory keys which stops playback). The re-mapped key I use (on my keyboard) is the tilde (~) key immediately below the ESC key. Took no time to get used to. And, as already mentioned, the audio is outstanding. Dan -- N3ND -Original Message- From: Bill W4ZV btipp...@alum.mit.edu To: elecraft@mailman.qth.net Sent: Wed, Aug 4, 2010 6:49 am Subject: Re: [Elecraft] K3DVR vs CW Memories Pete Smith N4ZR wrote: The trouble is that you give up all the advantages of N1MM's integration of logging and message-sending functions, particularly in Enter Sends Messages mode. I don't think so Pete, although I haven't yet tried this myself: http://www.dseven.org/ar/n1mm-kdvr3 Whenever 10m comes back to life I'll probably use my KDVR3 in contests. 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/K3DVR-vs-CW-Memories-tp5371027p5372003.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 __ 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] K3DVR vs CW Memories
Yep, I use this exclusive. Works great, lasts a long time. Only issue is that the ESC button does not stop the audio transmission, but I fix that problem by re-mapping an unused contesting key to emulate a REC button press (the button in the center of the memory keys which stops playback). The re-mapped key I use (on my keyboard) is the tilde (~) key immediately below the ESC key. Took no time to get used to. And, as already mentioned, the audio is outstanding. Dan -- N3ND -Original Message- From: Bill W4ZV btipp...@alum.mit.edu To: elecraft@mailman.qth.net Sent: Wed, Aug 4, 2010 6:49 am Subject: Re: [Elecraft] K3DVR vs CW Memories Pete Smith N4ZR wrote: The trouble is that you give up all the advantages of N1MM's integration of logging and message-sending functions, particularly in Enter Sends Messages mode. I don't think so Pete, although I haven't yet tried this myself: http://www.dseven.org/ar/n1mm-kdvr3 Whenever 10m comes back to life I'll probably use my KDVR3 in contests. 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/K3DVR-vs-CW-Memories-tp5371027p5372003.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 __ 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] k2 transmitting problem
__ 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] K2 transmitter problem
Hello all. I have gotten my K2 assembled and stated aligning the filters using Spectogram and the VFO stopped working. I reworked any suspicious solder joints to no avail. I discovered with the help of a friend with a scope that the encoder had failed. I replaced the encoder and discovered I have no power out on any band at all. I get HIGH CURRENT every time I hit tune and only .4 watts out on the meter. I ran a ground check on Q19 and the results are G= 96.7 K ohms, S=240.8 ohms, and D=276.2 ohms. I reworked the solder on R20 and RFC14 with no effect. Any suggestions will be greatly appreciated. 73 Daniel Grizzard Extra Class af4lb __ 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] K2 transmitter problems test
__ 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] k2 transmitt problem
Hello all, I have finally gotten to the final stretch of construction and have hit another snag. I had gotten the power out on all bands correct and was starting to align the filters when the VFO went out. I reworked the solder joints looking suspect on all 3 boards with no good results. I did discover the encoder had gone bad. I replaced it, aligned the filters using Spectrogram and then discovered I had NO power output on any bands! I get a HIGH CURRENT warning then .4-.5 on the display when tuning. Following the page 17 rf board vdc voltage chart all went well until I got to Q18 and Q19. Q18 G voltage rated -1.0= actual -.001 S was OK=D rated 6.3= actual 8.3. Q19 G rated 0.0= actual -.4==S rated 0.8=actual 1.7==D was ok at 8.0 vdc. Q20 checked out ok. Here I stopped and asking for suggestions. Thanks in advance. Dan af4lb NOTE==Q5 needed to be checked with the bottom cover off in transmit so I did not do it. Didn't want to risk frying the finals again. I do have 13.4 vdc on the case in transmit and receive. __ 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 IOTA Excursion
This weekend, an all Elecraft IOTA contest excursion to NA-067 Core Banks, NC will activate N4A during the competition. K3 and K2 versions will be used. Please give us a shout!! 73, Dan -- N3ND __ 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] SDR with a Twist
Lyle wrote: Low risk way to evaluate a lot of the technology for the KX2 and possibly the K4 IF section (QSD/QSE, no tune BPF and LPF, Si570 Synth, switching regulator A K4 in the worksPlease tell me more :-) __ 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 Field Day
Just my $0.02. On one of the two K3's we had at FD (NR3X), we used an 80M dipole fed with 450 ohm ladder line. Operators could not believe that I terminated the ladder line into a 4:1 balun, then directly into the K3 (KAT3). Using the internal tuner, the antenna became a multi-bander without a glitch. This particular rig was used on all bands except 40M CW, in which another K3 was used. Gotta love it. Dan -- N3ND __ 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] Power Poles
I like Paul's idea listed below. Personally, I like APP. If they are assembled correctly, there is more than ample holding power. That said, I AM anal and always support ANY connection with strain relief. Oh, and how the heck can those roll pins fall out? They're in there so tight, you need an awl or other tool to remove them! Again, if they're assembled correctly, . . . . . . Dan -- N3ND BTW, Field Day (NR3X), Class 3A, two K3's, one K2. Is there any other rig? That way, the connector: (1) becomes square in shape, instead of a thin rectangle that's prone to accidental lateral pulls; (2) offers higher current-carrying capabilities; and (3) has significantly increased pull strength, yet can still break away for safety concerns. Just thought of a fourth benefit. A quad APP panel connector can still use the standard ARES 2-pole format in a pinch. So, in an emergency, existing 2-pole APPs could be used with the square-shaped quad-pole being the preferred connector. With the doubling-up on pins on the quad, either side of the quad will mate with the 2-pole APP and there's no possibility of accidental polarity reversal. I did say I liked the APP for its versatility :-)) Paul, W9AC __ 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: Version 4.03 refresh
Wow, what was that? Took me 30 minutes to refresh as opposed to a normal 8 minutes. Has anything changed in the upload procedure? Dan -- N3ND __ 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] K2 VFO problems
Hello all, I have finally gotten my K2 up and running on all bands. What started happening during the final assembly IE speaker installation and top install, is that I cannot change frequencies after a short warmup, and sometimes from a cold startup. Sometimes spinning the VFO knob made it work for a short time. I had no problem like this during my search for low power out on 80 and 15 meters. (I found I had reversed two capacitors on those two bands.) I suspect a cold solder joint somewhere on the front panel board. Any other location suggestions are surely welcomed. I did remove and inspect the front panel board and reworked those joints looking suspicious but it did not help. Thanks in advance for your input. 73 Dan af4lb __ 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 mods and updates
I see in the new K3 Assembly manual that there are two new items added since S/N 1567 was born.? The first is for thermal pads that attach to the underside of the LPA transistors where they meet the bottom cover (page 62).? The second is aluminum metal plates/shields for the synthesizer modules of which I have two, one each for the main unit and subRX (page 50).? Are there any upgrade mods available to get these? Dan -- N3ND __ 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] K2 audio out
Hello all, I have recently completed my K2 alignment and finished assembling the top cover and installing it. I find I have very low audio from my speaker and must be within a foot or so to hear it. Both the front and rear speaker jacks have plenty volume using earphones. Any suggestions? 73 Dan af4lb __ 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 Power Creep
I've seen this posted before, but just noticed it tonight, the first time I've operated the rig on the air since I fixed an intermittent last Saturday. I also just installed version 3.94. The posts I've seen before talked about SSB, but . . . . If I adjust the power control to the power I wish to transmit, when I first transmit the power starts out low but finally creeps up to the correct power output. If I watch the power meter (LP-100A), and even the power meter on the rig, if I have changed the power control going from say 15 watts to 100 watts, the first dits or dahs are at varying but constantly increasing power increments until it reaches its final resting place. It only takes a couple of seconds, if that. Once there, it stays put. Obviously better than a high initial power spike, but nonetheless it shouldn't be. Anyone else see this or am I the unfortunate one with this small issue? 73, Dan -- N3ND __ 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 Power Creep
Guy, K2AV contacted me direct and suggested I rerun the power calibration, something I had not done after loading the latest firmware. The power creep has been significantly reduced to the point of acceptability (2 to 4 watts vs 15 - 20 watts). Thanks, Guy, and shame on me for not trying that before I spoke. 73, Dan __ 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] K2 transmitter alignment problems
Hello all, I have finally gotten to the final alignment portion of my K2 and have found power out problems on 3 bands, 80, 15, and 17 meters. The measurements follow: Band:2 watts setting 5 watts setting 10 watts setting 80 m. 2.0watts out1.8 watts out 1.8 watts out 20 m. 2.0 watts out 5.4 watts out 10.7 watts out 30 m. . 2.5 out 5.8 out10.6 out 20 m. 2.3 out 5.3 out10.6 out 15 m. 2.0 out 1.9 out 1.9 out 17 m. 2.0 out 3.9 out 4.0 out 10 m. 2.2 out 5.2 out 10.2 out 12 m. 2.0 out 5.2 out10.3 out All power at the 2 watt output setting was adjustable at the designated pots or capacitors. The rig had 13 vdc input and transmitting into a 50 ohm dummy load. Looking forward to suggestions. 73 Dan af4lb __ 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] K2 PA replacement kit
Hello all, I just got my PA transistor replacement kit and have a couple of items I want to clarify: 1) the 2n222a transistors I assume are for Q11 and Q13 2) the resistor coded brown-green-gold is for R50 in the Q6 driver circuit. Only one in the entire rig. 3) does both sections of the bottom need to be on for testing or just the front half? 4) when adjusting the transmit power is the maximum power out limited to 2 watts, 5 watts, 10 watts respectively at the 2 watt, 5 watt, 10 watt test level? Again, I just wanted to clarify these items before I power up the rig again. I really do not want to fry my new parts! 73 Dan af4lb __ 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] s/n 3020 was sold (advertised yesterday)
Thanks to those who responded. 73, Dan - W4TQ __ 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] K2 parts check
__ 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] K2 question
Hello all, Is there a way to check the PA transisters in my K2 safely while still installed? Thanks in advance. Dan af4lb __ 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] K3/100 For Sale, s/n 3020, Mint
K3/100 For Sale, s/n 3020, Mint This is Serial 3020, purchased May 4, 2009. As nearly as I can tell, this transceiver is perfect functionally and cosmetically. It's the finest rig I've ever owned. I wouldn't be parting with it, except for some large unexpected medical bills (getting old can be rough). This K3 includes: - 100 Watt Amplifier - KAT3 Antenna Tuner - KRX3 Subreceiver - KBPF3 General Coverage Bandpass Module - KDVR3 Digital Voice Recorder - KUSB Universal Serial Buss Adapter - Standard 2.7 khz Filter for Main receiver - Standard 2.7 khz Filter for Subreceiver - Optional 6.0 khz (AM) 8-Pole Filter for Main Receiver - Optional 1.8 khz 8-Pole Filter for Main Receiver - Optional 400 hz 8-Pole Filter for Main Receiver Price is $3200, which is more than $600 reduced from current assembled price. All of the original purchase documents, manuals, boxes, and packing materials are included. I'm located near Dunnellon, Florida (about 70 miles north of Tampa). I would be glad to demonstrate the rig to someone interested in purchasing. Email me at: dml...@gmail.com Dan Long - W4TQ __ 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] Overvoltage protection?
I recently purchased a 35 amp Astron power supply at a hamfest (in great condition). Upon inspection, I found that the crowbar SCR had failed, and had been removed. Although I've replaced the SCR, I'm wondering if the K3 has overvoltage protection of some kind? As an aside, I would like to test the crowbar circuit in the Astron, but with that big capacitor in there, I'm kind of hesitant. That big capacitor would have to discharge before the primary fuse would blow (maybe blowing the SCR)--right? I'm thinking of putting a 25 amp fuse in series with the capacitor. Anyone address this before? Thanks, Dan - W4TQ __ 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] LP-PAN
I am looking for an LP-PAN/E-MU 0202 setup. Anyone want to sell theirs to fund the P-3? Let me know what you have and what you want For it. Thanks Dan N0DT __ 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] RF gain/AGC issue
I just performed an experiment on 40 and 20 meters. I found a CW signal. I turned the AF gain all the way up, and the RF gain all the way down. Then, I turned the RF gain up slowly, with AGC on, and then AGC off. With AGC off, as the RF gain was advanced, I heard the signal well in advance of hearing the noise. With the AGC on, as the RF gain was advance, I heard the noise well in advance of hearing the signal. I repeated this test on many signals, with the same results. Dan- W4TQ __ 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] [K2] RX noise level
Hello I've measured K2's RX noise level (antenna terminated on 50 ohm, AGC OFF, AF and RF to max, DMM connected to P5), when PRE is ON N = 0.055v, PRE is OFF N = 0.013v. Are those levels OK for K2? Thanks Sergey. -- View this message in context: http://n2.nabble.com/K2-RX-noise-level-tp4461774p4461774.html Sent from the [K2] 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
[Elecraft] vco voltage problems
__ 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] Astron SS-30
I have an Astron SS-30 power supply that was Only used for 4 months for sale. I would take $90 + shipping. I have switched to solar. Thanks Dan N0DT __ 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] Amplified Speakers - 'COMspkr' from West Mountain Radio
Hi Earl, Interesting post. I had not previously seen these speakers. Their website advertises them as computer speakers, which are impervious to RF. If I understand you correctly, however, you use them as external speakers for your K3. Thanks, Dan - W4TQ ... I have used the 'COMspkr' from West Mountain Radio for 4 months now with no problems. Even at times using 1500w RTTY or CW. They are stereo (Amplified) and a nice match to the K3. Usual disclaimer, no connection, just a satisfied user. Earl N5ZM.. __ 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] W4ISH comments - Re: [K3] Noisy K3 receiver
Nice summary Bill. Will you please share the AGC setting that you most typically use? Thanks, Dan - W4TQ ... Hello all! I have read the many comments upon the noisy K3 receiver with interest. I, too, have always thought the K3 somewhat noisy, but that is in comparison to the other receivers I have. The best sound from a modern receiver to me has been from the Ten Tec OMNI VII. When I place the RF gain on that radio to about 25-35%, the noise is gone and the signals are still there, for a true treat of listening without fatigue. When I first got the K3, I was disappointed with the fatiguing hiss or artifacts (definitely higher frequencies) which I experienced. Over the two years of having the K3, though, I have seen gradual improvements while I have learned to adjust the AGC parameters. I added all the mods which had to do with audio, and each one brought a little improvement. Now, somedays I am amazed at how quiet the K3 seems to be, with the signals just popping out of the noise, while other days I still wonder what I need to adjust. I also realize that my hearing, which has a peak at approx. 4000-5000 Hz, is somewhat sensitive to higher pitched noise. I do understand that those who find it tiring to listen to the K3 are honestly reporting their experience. Isn't it wonderful that we now have a radio which allows us to become aware of: 1) A spectrum analysis of our hearing loss/gain so we can make adjustments to compensate for damage, age, etc.; 2) Our opportunity to learn the differences in atmospheric and operating conditions, and the specific AGC requirements for each; 3) The wide range of variability among Amateur operators as to their desires and interests 4) A higher level of technological achievement which opens up the possibility of such discussions as these because of the K3's clarity and reproducibility of signals, which in turn allows us to hear what has never been heard before. The K3 is another step in the advancement of Ham Radio technology. It is not the pinnacle (or will not be there forever, anyway) of achievement, but it is among the best we know today. Tomorrow will be a different story. Meanwhile, let us communicate with what we have, while urging Aptos on to even higher goals. Bill W4ISH __ 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] 150 watt boots for 160m
I found it interesting. Dan- W4TQ ... Is it really necessary to continue this thread? My inbox is seeing entirely too much drivel like this thread and others on this reflector. Bob W6TR - Original Message - From: Joe Subich, W4TV li...@subich.com To: 'Ignacy' n...@arrl.net; elecraft@mailman.qth.net Sent: Friday, December 11, 2009 3:09 PM Subject: Re: [Elecraft] [K3] 150 watt boots for 160m 2SC2782 is rated at 80W min each at 175 MHz so getting 150W from two on 1.8 MHz should be peanuts; the main reason why they are restricted to 110W in K3 is linearity (across bands) + component ratings. At higher power, the efficiency can be higher and thus K3 may actually run cooler! __ 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] [K2] Crystal filter impedance
Hi How must be K2's variable-bandwidth crystal filter in/out impedance (W2,W3 points) with FL1 1.5 CW choosen? Thanks in advance Sergey 4Z5TV -- View this message in context: http://n2.nabble.com/K2-Crystal-filter-impedance-tp4141621p4141621.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
[Elecraft] [K2] S meter readings
Do I need to see S meter reading changes when choosing between ATT and PRE ? Thanks Sergey 4Z5TV -- View this message in context: http://n2.nabble.com/K2-S-meter-readings-tp4133464p4133464.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] Droid
I am also looking at the Droid. I am planning on buying 4 of them for Christmas For the family. What do you think of it so far? Thanks Dan N0DT Top posting is the official standard for this list, and its especially important for those of us who also read our email on PDA phones. (I'm using the new Motorola Droid..) Reading the response first, at the top, is a hige time saver. __ 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] [MM] W2 connection problem - NZ0T Comment
Bill, Will you clarify something for me? You mentioned a terminal emulator. If I understand you correctly, with this emulator, you can run two separate applications (a logging program and the K3 utility) at the same time. ...and that both of these applications are accessing and controlling the K3 at the same time via it's serial port. Is this correct? My second question concerns the W2. How is the computer connection made to the W2? Is it not made directly to the W2? What cable goes where? Thanks, Dan - W4TQ __ 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] [MM] W2 connection problem - NZ0T Comment
Thanks for the reply Bill, but I'm still confused. Will you be running more than one application on the W2 through this port? If not, then what is the purpose of using the emulator program as opposed to defining a port via the operating system? (If you are using usb/serial adaptors, you can define as many serial ports via the operating system as you like, right?) Believe me, I'm not being critical. I'm not a computer jock, and I'm trying to understand. I use a logging program that I like very much (DX4WIN), and I would like to be able to use it at the same time as the K3 utility, both addressing the K3. If I understand you correctly, I could make use of the emulator program to run both programs at the same time. Thanks, Dan - W4TQ . Hi Dan, I am using this emulator program: http://eterlogic.com/Products.VSPE.html I use it to run two seperate programs from one port. The program allows me to create a seperate virtual port. I am using actual port 5 and I have created a virtual port 9 which can share applications. The connection to the W2 is a Dynex DX-UBDB9 USB/serial adapter thru the Elecraft supplied serial cable directly to the W2 serial connection. Hope this helps. 73 Bill nz0t __ 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] RFI
What is the K3 RFI mod? Thanks, Dan - W4TQ I am getting destroyed by RFI on the back panel. I am using a MicroHam MKII interface. I have ferrites on every cable from the MKII and it is still shutting down the K3. I know the real solution is the RFI mod for the K3. Is there an interim solution? How long would it take if I shipped the K3 back to have all the current mods applied? Guillain-Barre Syndrome pretty much destroyed my sense of touch so intricate mods are beyond my attempt. This RFI is killing my SS attempt tonight. John K8WDN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [OT] Jurassic Radio vs K3
I was WN8DVT-WA8DVT in Dayton in about 1960. See picture of my first stations here: http://s748.photobucket.com/albums/xx121/W4TQ/?action=viewcurrent=StationsLR.jpg The top picture shows my Hallicrafters Sky Champion (was an antique when I got it) and an Ameco AC-1 (AC-1 kit bought mail order from an ad in QST). The next picture, after I got my General, shows on the far right a homebrew single tube 6146 amplifier, and a Heathkit VF1 VFO. On top of the VF1 is a 6AU6 push-pull modulator I built from plans in an old ARRL manual. I used the modulator on the 6146's screen grid. By setting the control grid bias just right, the screen modulation produced a double sideband signal (sort of)--I got good audio reports as such, anyway. I couldn't afford to buy an output transformer to build a plate modulator to run AM. As you can see, my station was in the attic. The antenna was a 40 meter dipole which ran from one end of the attic to the other (just above my head), and then out through a hole to a tree in the front yard. Dan - W4TQ K3 - 3020 __ 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] XG-2
Does anyone have an XG-2 they want to part with? Thanks Dan N0DT __ 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] Trolling
Gee, Jim, I wrote you a private email to your personal email account and you publish it on this reflector? Who gave you permission to do that? You really do have issues. I apologize to the entire reflector for Jim's antics. 73, Dan -- N3ND On 10/7/09, JIM DAVIS nn...@astound.net wrote: On Mon, 05 Oct 2009 13:01:54 -0400 Dan Atchison n...@aol.com wrote: Personally, Jim, I agree with Steve.? If you've had no problems, then why bring it up?? Let readers be their own judge. Dan -- N3ND *** Dear Dan, All that I'll say about what I had put forth on the REFLECTOR is honest and heart-felt! Can YOU or anybody else really TRUST anyone (or manufacturer) to be kept HONEST??? If you TRUST everybody as I suspect YOU DO, then are'nt you and others a part of the problem as well? Regards, Jim/nn6ee PS, If WE AMERICANS can't give our own opinions here or anywhere else then WHAT GOOD IS FREEDOM OF SPEECH? Why denigrate ME as a individual because I DON'T THINK LIKE YOU DO??? __ 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] speakers
I am looking at speakers for my K3. I have looked At the various computer speakers but don't know Which of the many available would work best. Does Anyone have an opinion on which set is best :-). Also should I get a set with a sub? Thanks Dan N0DT K3 #3388 __ 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] Use FM filter for AM listening??
I have K3 s/n 3020 with firmware 3.11. I'm planning to upgrade firmware at the next release--I didn't see 3.14 as important for me. I've been using the K3 on 80 through 20 mostly, with great success and satisfaction--I love this radio. I have in filter locations 1-4 1 - 13 khz, 0 gain, 0 offset 2 - 2.7 khz 5-pole, 0 gain, -.85 offset 3 - 1.8 khz 8-pole, 0 gain, 0 offset 4 - .4 khz 8-pole, 2 gain, 0 offset I did NOT get the AM filter because I did not plan on transmitting AM. I DID get the FM filter because I want to listen to AM (broadcast band and SW), and possibly operate on 10 meter FM. When I try to use the FM filter for AM listening, the results are very poor. Specifically, poor bass and significant ringing, even when adjusted for max bandwidth, which shows as 5 khz on the display. If I turn the FM filter off, and use the 2.7 khz 5-pole filter for AM listening, the results are much better--no ringing and a more open sound with better bass. The FM filter bandwidth is set for 13 khz in the config menu. Did I make an error in judgment when I purchased the FM filter for AM listening, or am I experiencing a technical problem? I have not tried to use the FM filter for 10 meter FM because I haven't heard any detectable signals at my location. Thanks, Dan - W4TQ __ 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] I Love This List
Well guys I have to say I Love This List. This list has taken what was a cloudy rainy Yucky day and gave me much enjoyment. We all know that the K3 isn't perfect but I Think we can all agree that it is a joy to Use. At least I love mine. It is the best I have ever owned in 35+ years as a ham. As far as Elecraft customer support is concerned, Anyone that has had to use it knows it has no Equal in the ham radio world. OK where's the koolaid? Dan N0DT __ 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] Uncontrolled full volume with NR Firmware 3.27
This same thing happened to me this morning. I had headphones on and it really caught me by surprise. I passed it off as something I probably did, but apparently it is an issue. I may have been at the same NR selection, too. Very odd. Dan -- N3ND __ 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] filters
I am getting ready to order a K3. I am having trouble Deciding which filters to order. I want to listen to the SW bands so am ordering the General coverage module. I Want either the 6 or the 13kc filters but not both. I Know if I order the 6 it will not work for FM but if I Order the 13 will be happy with it on am? Is there much advantage to getting the 2.8 8 pole Verses the 2.7 5 pole? Same with the 400hz 8 pole Vs the 500hz 5 pole. Thanks for your help Dan N0DT __ 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] Knobs
Hi Drew, Let's differentiate between an engineering concept and a manufacturing design. The engineering concept of these knobs is certainly reasonable. For example, when nested knobs nest properly, that's just fine.--they look good and work as planned. Great concept! A design that is suitable for manufacturing is quite a different thing, however. Obviously, the goal is for the knobs to work properly not just on your K3, but on ALL other K3's as well. The design dimension tolerances must be specified in view of the manufacturing precision which is available to implement the design concept. Some of us think that a different design concept could be mass produced with more precision so that all of the knobs work properly on all of the K3's. I'm sure there are several who will be glad to hear that this is my last comment on knobs--honest. 73, Dan - W4TQ ps: The superb fit of the K3 chassis/enclosure parts demonstrates that there is someone at Elecraft who thoroughly understands manufacturing design tolerances. Congratulations on a great job in that area of the mechanical design. I have K3 #1029. The nested knobs are perfectly concentric to my eye. The Shift/Width knobs don't fall off and are not too short. None have cracked in one year of almost daily service. Perhaps there have been some incompatible production variations along the way. I don't doubt you are having a problem but have to disagree with your comments about design. The original design seems perfectly adequate if #1029 is any indication. 73, Drew AF2Z __ 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] Knobs
I've been reading the posts about knobs for several months, and I was trying to resist the temptation to voice my objection to the knobs on my K3 (#3020). After all, I decided on the K3 because of it's advertised and acclaimed performance, not the cosmetics or knobs. The situation though, reminds me of the line in the original Mash movie (adapted for K3 owners): Just because we're K3 owners, doesn't mean we're barbarians. Translated: we should be able to own one of the best radios ever made AND have knobs that both look good and work properly. No, I wouldn't spend $200, but I would spend enough to make a substantial improvement. Actually, some of the alternatives can also be very expensive. For example, I've considered buying a Pro III just to impress visitors to the shack (beautiful display and nice knobs). Of course when they would leave, I would turn off the Pro III, and turn on the K3. Prior to reading any of the complaints, when I was assembling the K3 and came upon the nested knobs, I couldn't believe that they didn't have brass inserts. I thought, they sure must have come a long way in injection molded plastics to be able to make nested knobs with the necessary dimension controls to assure proper operation. I was also surprised to see that the shift-width-speed-cmp knobs were a push-on design, and they looked like they were too short for the length of the shafts. I tried to keep an open mind, figuring that these guys must know what they are doing--they've produced a radio that some very experienced hams are raving about. Well, after assembly was complete. 1) The nested knobs would not operate unless they were un-nested, due to concentricity problems. Brass inserts would solve the problem, because the brass is drilled after assembly of the knob, assuring concentricity. 2) The shift-width-speed-cmp knobs still don't look right to me. Also, I had a problem with them falling off. Elecraft rushed me a new set of knobs, but the problem continued. I finally but a small dab of contact cement on each knob, to keep them from falling off. I would prefer a knob with a brass insert and a set screw, as opposed to using glue. Group Dynamics at the Radio Factories? If an engineer at one of the major brand radio companies submitted a design with theses knobs, he would be beaten into submission at one of the many stages of design review. While a smaller company like Elecraft can be very agile, and can respond quickly to customer needs there can also be a disadvantage when a key man is invested in a marginal design concept. Junior engineers don't make eye contact, or stare off in a different direction, maybe whistling. You may hear comments like, If you know what's good for you, don't say anything to the old man about those knobs.--just kidding, Wayne. The Missing Link? In a few hundred years when archeologists are examining the remains of old radios, one of the pressing questions will be: Were software defined radios developed because we lost the ability to make knobs, or did we loose the ability to make knobs because of software defined radios? We wouldn't want the K3 to be known as the missing link, would we? Respectfully submitted, Dan - W4TQ (ham for 50 years!) __ 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 vs. Icom IC-7600
I still for the life of me can't understand why the K3 didn't Come with a USB port instead of the outdated com port. That is One reason I have not bought one yet. Maybe in a future mod They will address this. Dan N0DT -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Steve Ellington Sent: Tuesday, June 16, 2009 12:56 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 vs. Icom IC-7600 No doubt the K3 performs better but there is one feature on the 7600 that is nice, the USB port. You can run digital modes from the pc with only one USB cable which handles serial commands plus audio in/out. The sound card connection is no longer needed. Several users are running MixW in this fashion. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: dummy load antenna
Hi Ron, During the last sunspot cycle, I was playing around with my K2 trying different things with the rig. I think I was on 20 meters, but I can't remember for sure. I heard an F calling CQ (SSB) and I answered him. It turns out that it was a fire fighters club station in France. We had a nice and long QSO, and he gave me a 59+. After the QSO ended, I noticed I had turned the power all the way down while I was playing with the rig, adnd had forgotten to turn it back up! I checked, and I was running less than a watt! If I remember correctly, it indicated around 300 milliwatts! You are right! Milliwatts will cross oceans when the conditions are good! Dan Allen KB4ZVM K2 S/N 1757 - Original Message - From: Ron D'Eau Claire r...@cobi.biz To: 'Elecraft Reflector' elecraft@mailman.qth.net Sent: Sunday, June 07, 2009 3:48 PM Subject: Re: [Elecraft] OT: dummy load antenna Heh, heh... Some years ago I was tuning around on 40 meters and heard a CQ so I answered it. Turned out to be a Novice and I noted he was not in the sub-band he was supposed to be in. He disappeared. A few minutes later my phone rang. It was the Novice, in a PANIC!!! He had looked me up to ask what was happening. He was on 15 meters and I was on 40. Turned out we were about a mile apart and I was hearing his rig's xtal oscillator on 40 that was tripled into 15 meters, and he was copying my third harmonic. A nice eyeball QSO and some checks confirmed we were both entirely legal, but it's a reminder that a few mW ERP can be heard. Ron AC7AC __ 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 EZ and .NET FRAMEWORK 2.0
I was looking on the Elecraft software site, and saw the K3 EZ utiltiy which helps with creating/maintaining the K3 configuration. The K3 EZ info page says that there is a system requirement--.NET FRAMEWORK 2.0 must be installed. The Microsoft download page for .NET FRAMEWORK 2.0 does not list Vista as a supported operating system. Has anyone found a way to use K3 EZ with Vista? Thanks, Dan (s/n 3020) __ 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] Attitudes
I was first licensed just three weeks short of my 11th birthday in 1958 (KN4ZZR), and I have been (more or less) actively involved in amateur radio ever since. I have seen a lot of change in that time, but the one constant that has always amazed me is the level of anger among a certain percentage of those involved in this *hobby*. And it is a hobby. After all of these years, I am still amazed at what I don't know. I maintain a list of people whom I am not afraid to ask any question arising from any problem that has stumped me. The knowledge that I have gained, and the friendships that I have made, are priceless. I know from personal experience how off-putting it is to ask someone a question in good faith, and have them blow up, denigrate you, and launch into a rant. I avoid these people at all costs, and I feel badly for them. They are missing much of the joy that this very short life has to offer. I have been passionately involved in aviation since 1965, and I have never experienced this phenomenon in the flying community. People in this community are both eager to help and teach, and to learn. And they have always been uniformly friendly. I don't know what it is about amateur radio that causes (or attracts) this anger, but it is self-defeating. If this hobby is in peril, and if our numbers are shrinking, we need to accept everyone who has an interest, and we need to nurture them and pass on whatever knowledge we have. If they came into the hobby by memorizing the answers to a set of questions, that should be fine. They have shown an interest, and some initiative. It is up to us to make them feel welcome and accepted. It is up to us to bring them from where they are, to where we want them to be. Try it. Some of them might truly surprise you! Dan Allen KB4ZVM (Advanced Operator Privileges - 13 WPM code) K2 S/N 1757 BS Chemistry 1969 BS Pharmacy 1974 Private Pilot Glider Commercial Pilot/Instrument Rating Airplane Single-Engine Land Airline Transport Pilot Airplane Multi-Engine Land Certified Flight Instructor __ 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: K2 alignment problems test
- Original Message - From: af...@verizon.net To: elecraft@mailman.qth.net ; af...@verizon.net Sent: Thursday, April 30, 2009 11:57 PM Subject: Fwd: K2 alignment problems Forwarded message From: af...@verizon.net Date: Apr 29, 2009 Subject: K2 alignment problems To: elecraft@mailman.qth.net After 3 years I have finally gotten to complete the construction of kit # 5233. The first 2 phases I got completed with only a couple of glitches that with your help I got corrected. I completed istalling the parts for phase 3 and started the alignment section as per the manual. I set power to 2 watts and started to tune L1 and L2 to peak the transmitter but to no avail. Further checks per the troubleshooting guides found the diode and resistors in the first few steps were ok. I did not have any signal at r50 using the rf probe. I then went back to checks from phase 1 and was ok until I got to the tone freq and pitch test. I now have NO tone or pitch control and no tone. The display shows the correct values as when I first did them during the construction but no tone is present. I did notice when I hit edit to activate the tone the white noisewent away. Rotating the vfo I can hear faint clicks in the head sets but no tone. I then discovered the birdy tone at 7000 is now very faint and goes away totally when I vary the vfo. I can get it back when I hit edit. Further checks of the transmit section of the rf board finds none of the values listed for the U chips are correct. Mostly where voltage is indicated on the different pins I have either no voltage or double voltage! So far no overheating or smoke is present. Male logic indicate that the problem is in section 3. I have double checked parts placements, filter and transformer windings and can not detect any solder bridges. Thus two questions. 1) suggestions as to where to start from her and 2) where can I obtain a picture of the front and back of the rf board without any components installed. That would make bridge location a little easier for those close pads that are easily bridged. Holding the board up to a strong light helps but a picture is worth a thousand words or light sightings. Thanks in advance. Dan af4lb __ 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] Brush or Blow Dust?
I'm an old ham who has built a lot of kits over the years. I am really excited though to become an Elecraft user having just received my K3 kit. My question has to do with instructions to either brush or blow away any dust or lint from the front panel area around the encoder shaft. I have a good old standby fine bristle brush I use for my radio front panels. I also have a fairly new can of the Cleaning Duster: which states that it is for removing dust and dirt from audio, video and other such equipment. It contains Difluoroethane ??? Question is: What would you recommend to use safelyDan, W4EA __ 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: Brush or Blow Dust?
I'm an old ham who has built a lot of kits over the years. I am really excited though to become an Elecraft user having just received my K3 kit. My question has to do with instructions to either brush or blow away any dust or lint from the front panel area around the encoder shaft. I have a good old standby fine bristle brush I use for my radio front panels. I also have a fairly new can of the Cleaning Duster (Office Depot), which states that it is for removing dust and dirt from audio, video and other such equipment. It contains Difluoroethane ??? Question is: What would you recommend to use safelyDan, W4EA __ 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] KAT3 auto select by high SWR?
I do hope that Elecraft has high on its list of future of K3 upgrades - multiple tuner memory settings per band and even auto-tune. Dan -- N3ND __ 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] Pumping with AGC
Gary: Guy, K2AV, said, Make sure in Config Menu you have AGC PLS nor. This is the probably the single best suggestion of all other than riding the RF gain. Most prevalent and especially during contests are key clicks - hard keying - which extend at times several kHz fore and aft of the carrier freq. If AGC PLS is set to OFF the key clicks will surely affect the AGC. In my opinion, the K3 handles this situation better than any other rig I've used - which is many. Again, make sure AGC PLS is nor. I have no troubles, even on the topband with preamp on, with AGC pumping and a 200 Hz filter. 73, Dan -- N3ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 S-Meter Calibration and SMTR MD abs
Just a quick question concerning the calibration of the K3 S-Meter and the use of configuration SMTR MD. I have calibrated the K3's S-Meter using the manual calibration procedure (K3 Preamp ON). Everything calibrates fine, but if I try to use configuration mode, SMTR MD abs as opposed to SMTR MD nor, the S-Meter does not show the calibrated results. It shows the S-Meter reading of the K3 when it is in a no attenuation, no preamp condition. This doesn't sound right to me. Shouldn't SMTR MD abs show the calibrated indication (even with the preamp off and the attenuator enabled)? Dan - N3ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] MFJ-1278T Multi-mode Data Controller
My experience is that it does packet really well. I haven't tried it on the other modes. Dan Allen KB4ZVM K2 S/N 1757 - Original Message - From: Bob Nielsen n...@clearwire.net To: elecraft List elecraft@mailman.qth.net Sent: Sunday, January 04, 2009 9:58 PM Subject: Re: [Elecraft] MFJ-1278T Multi-mode Data Controller On Jan 4, 2009, at 3:57 PM, Mike Short wrote: Does anyone have an idea if this will do PSK31? No. It will do packet, RTTY, AMTOR and Pactor (you will find varying opinions on how well it does some of these). Bob, N7XY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Dual PB
Out of curiosity, is the dual PB done in IF or audio? Dan - N3NDHappy Holidays ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: K3: listening to both rcvrs - Reduced receiver noise floor
So the reduction in SNR (assuming equal noise power) is 3.01 dB, not 6 dB. That's the best case if the noise power is equal. If the other receiver has higher noise power (wider bandwidth, more interfering signals, etc.) the S/N reduction is greater. Even 3 dB reduction in S/N is a big hit if the DX Station you're trying to hear is at or just below the noise level. It would be a shame to turn a top performing radio into a mid-pack device by mixing the audio - because of some old wife's tail. Let those who want mixing do it externally so it doesn't impose a S/N penalty otherwise. There seems to be a fundamental mis-understanding on how uncorrelated and correlated noise works. If two receivers are listening to the exact same signal and use the same antenna, then the short answer is that summing the output from these two receivers together will produce the same signal at a level 6 dB higher with no signal to noise change. This assumes the receivers themselves are identical and do not contribute noise (more on this later), so the two receiver outputs will be identical. Band noise from one receiver at any instant in time will look exactly like band noise from the second receiver. The desired stations signal will look the same from both receivers. The point is that magic is not involved, and that neither of these two receivers can tell the difference between band noise and the desired signal and thus will process both the desired station and the band noise the same. Thus, there would be no degradation or improvement in signal to noise ratio as long as we are talking about ideal receivers. However, if the situation is a weak signal situation where the receiver noise floor is at least partially masking the desired signal, we have a different situation. Band noise and stations on the band will both be correlated coming out of both receivers and thus get a 6 dB improvement. On the other hand, the internal noise produced in each receiver is independent and thus uncorrelated. While correlated signals add voltage wise (V + V = 2V or 6 dB gain), uncorrelated noise adds as the square root of the sum of the squares sqrt(V*V + V*V) = 1.4V or 3 dB gain. This means what when adding the output of two identical receivers, the band noise and the desired station signals will increase by 6 dB while the receiver noise contributions will increase by only 3 db. You have in essence created a single composite receiver with a lower noise floor. If you added just enough RF pre-amplification to overcome the signal splitting loss to N receivers, adding more and more receivers in parallel will produce a composite receiver that has a better and better noise floor. This is in essence what the space telescope folks do. They gang many dishes and many receivers together across a very large area to get an enhancement on the signal and space noise and a suppression of the effective receiver noise contribution. Thus, if the noise floor of the receivers are the limit, listening to the same signal with two identical receivers will have the effected of reducing the receiver noise contribution by 3 db. Conversely, that also means that if you are listening on 40m where the band noise is way higher than the receiver sensitivity, reducing the receiver noise contribution will be of no benefit. - Dan Tayloe, N7VE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Re: K3: listening to both rcvrs - Reduced receiver noise floor
This is a nice mental thought experiment. Tune two identical receivers to the same pass band and listen on both. If you sum the outputs together (neglecting the noise generated inside the receivers themselves like we have on a noisy 40m band), the two outputs will be the same. The band noise goes up 2x, the desired signal goes up 2x. Think about what you are proposing: In order for there to be 3 dB SNR degradation, somehow the receiver would have to know what stuff is signal and what stuff is noise and treat them differently. A receiver (other than cases like noise blankers) does not do that. The receiver translates both band noise and desired signal to audio. Thus, as long as the signals external to the two receivers swamp the internal noise of the receivers, summing the two outputs of the two receivers driven from the same antenna will not help or hurt the signal to noise ratio. How can it hurt the SNR? How can the audio output **not add** for the desired signal and **add** for the noise? The desired signal adds the same as the undesired band noise add. I was once fooled by this thinking as well. It helped me a lot to understand that to a receiver everything is a signal. The desired station is signal. The undesired band noise is also a signal. Thus adding the output of two receivers together gets 2x signal and also 2x noise. Both will increase by 6 dB, but the ratio of signal to noise is unchanged. Like I said before, the only potential signal to noise improvement happens when the receiver internal noise starts masking the external desired signals, in which case all external signals double in voltage (both signal and band noise), a 6 dB gain, while the internal noise from the two receivers will not be the same, adding in an uncorrelated manner, seeing only a 3 dB gain. Thus we can see a net signal to noise improvement since the receiver noise component will increase less than the external signal and band noise increases. Receiver noise being a limiting factor happens either under very quite band conditions, or when a very poor antenna is being used. - Dan, N7VE -Original Message- From: Kok Chen [mailto:[EMAIL PROTECTED] Sent: Monday, November 17, 2008 12:55 PM To: Elecraft Reflector Cc: Tayloe Dan-P26412 Subject: Re: [Elecraft] Re: K3: listening to both rcvrs - Reduced receiver noise floor On Nov 17, 2008, at 10:06 AM, Tayloe Dan-P26412 wrote: Band noise from one receiver at any instant in time will look exactly like band noise from the second receiver. That is true if the two receivers are tuned to the same passband and you are using an identical antenna for the two receivers. In the case of receiving split, you are not looking at the same noise entering the two receivers. In this case, by combining two different passbands, the desired signal would only come from one receiver but the summed noise would come from both receivers, dropping the SNR by 3 dB. An easy test is to subtract two receiver outputs (assuming the receivers are phase coherent). You should get a reasonable null (sky noise and signals are nulled away, leaving just the receiver noise and any gain/phase mismatch in the two passbands) when looking at the same antenna. When you tune one receiver away, the noise level should rise. Come to think of it, it is an easy DSP experiment by looking at the output of two complex mixers using different (numerical) local oscillators. 73 Chen, W7AY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 (RX) Handling of Key Clicks
As a die hard CW operator, it's difficult to imagine that after 45 years as a ham, I actually worked my first CWSS. Shame on me. I had a blast just SPing on and off during the weekend. This was the first active CW contest I've had with the K3. While early on after receiving the K3, I had the opportunity to have it side by side with an FT-2000, after a week of A/B comparisons the FT-2000 was relegated to a different location and disconnected from the operating desk. Since CWSS would be a great radio comparative genre, I returned the FT2K back to the operating desk and next to the K3 - again for A/B comparisons. No need to go into real details, save one, as the K3 is the clear winner. On receive what I really noticed far more than anything else is the K3's handling of key-clicks. Yep, there are plenty of stations with key-clicks, but the K3 AGC handles them SO much better than the Yaesu. It almost appeared I could tell by the clicks who was using a K3 and who wasn't. From a transmit side, several stations who I know were using the K3 had no clicks at all - including some whose signal level approached 30 over. Surely in some receivers, a signal that strong may have clicks generated by the RX itself. Both of these observations attest to the effectiveness, quality, and attention to detail realized by Elecraft. Way to go! Dan -- N3ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3: No measurable voltage on band data lines?
I'm still trying to debug my problem with the Top Ten band decoders and my K3 (s). When I put a volt meter on the band data output pins of the K3's ACC connector, I don't see any positive voltage (all the pins read zero). When I connect the ACC pins to the Top Ten decoder via an appropriate cable (thus bringing the decoders pull-up resistors into the picture), I see a non-zero voltage on the high pins, but only between 1.6 and 2.2 volts - not 5 volts. Without the connection to the K3 in place, the same pins measure 5 volt (due to the pull-ups). Is this normal - in particular, is it normal not to be able to measure a positive voltage on the high pins of the ACC connector with nothing other than the meter attached? I realize that these are open collector, but I would have expected to read some positive voltage. ***dan, K6IF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Two K3's, Same Band, Same Time?
For Sweepstakes, we are thinking about using a large multi-multi contesting station to house two separate single operator efforts. The station has two yagi antennas on each band, separated by about 500 feet, and element tip to element tip when beaming the US (antennas pointed in parallel). The thought has crossed my mind that two K3's in such a situation might be able to deal with the other signal, even strong and so close, if one station is at the low end of the band (say 14005) and the other is at the high end of the band (say 14075). Would anyone care to weigh in about the likelihood of the receivers surviving such behavior? ***dan, K6IF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Problems with Top Ten Decoder?
I'm having an odd problem with two brand new Top Ten decoders and two different K3's. In each case, the decoder is having problems pulling up the band data lines coming in from the K3. All four band data lines measure at 5 volts without the K3 connected (thanks to the decoder's pull-up resistors), but only between 1.6 and 2.1 volts with the K3 connected (on lines that should be on - lines that should be off read zero volts). Turns out that isn't a high enough voltage for the decoder chip to read properly, so the band decoder doesn't work. I strongly suspect operator error, but can't figure out what I am doing wrong. Hints? ***dan, K6IF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KX1 REMOTE SPEAKER
What I did was sort of homebrew. Several years ago at Dayton, a guy was selling battery-powered PC speakers for $2 a pair (last year, they were $4/pair). I bought a set. Discovered that they ran off 6 D cells, three in one speaker, three in the other. I figured out how to rewire it so that the speaker with the amp board in it ran off a 9V battery. Now, I have a great little amplified speaker to use with not just the KX1, for which I paid two bucks. 73! Dan KB6NU -- CW Geek and MI Affiliated Club Coordinator Read my ham radio blog at http://www.kb6nu.com LET'S REALLY MAKE THE ARRL THE NATIONAL ASSOCIATION FOR HAM RADIO On Oct 18, 2008, at 12:24 AM, B. G. wrote: KX1 3 questions. 1. KX1, s/n 2074, (basic unit), is on the air. Works perfectly with 589 QSO's on 40 20 at 4+ watts. Only problem was installation of the *$%* battery holders with screws provided. Elecraft sent longer ones but the plastic holders still are too thick for the longer ones too. (Wires are not pinched). This seems to be the weakest link in a great rig. Will build the 80-30 module and ATU next. I have received opposite opinions on which module to install first. I'd welcome any comments. Now the primary question. To stay with the kit concept, I'd welcome suggestions on building, 'not buying', a small amplified speaker with a 2' cord to plug into the phone jack on my KX1. I'm thinking along the lines of using a LM386N chip with a 1 speaker in a small 1 x 1.5 x 4 Rat Shack plastic box. It's just 'gotta' be home brew and small. Any suggestions? 72 Bob, W9EWW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] (Fwd) Re: My email address
I just sent out thousands of e-mails to the ARRL members in the Great Lakes Division (I'm running for Vice Director). The forwarding service is definitely working. :) 73, Dan KB6NU On Sep 30, 2008, at 4:08 PM, Monty Shultes wrote: I do not think they ever hosted email accounts. They provide email forwarding for members. I just verified that it is working. Monty K2DLJ I distinctly remember an ARRL announcement to the effect that they were no longer hosting and/or administering email accounts on arrl.net ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K1 Boards Wanted
Looking for a built or unbuilt KFL1-2 (2 Band Module) OR KFL1-4 (4 Band Module) for the K1 - and any other unbuilt add on K1 kits you may have!! Please email me at [EMAIL PROTECTED] or call me on my cell at 770-377-6000 with asking price. Thanks Dan-KI4YZE -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave Zeph Sent: Sunday, September 14, 2008 12:39 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 VFO A/B It’s obvious that these is a strong difference of opinion on how the AB Button should work. Rather than one group shove THEIR idea of how it SHOULD work down the other group’s throat it would seem that Elecraft would be well advised to terminate this discussion and make this user-configurable. 73--→ Dave, W9ZRX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 s/n 1567
K3, s/n 1567, is up and running. From order to receipt, exactly 4 months. Ten hour build, short shipped two screws which could have been a completion breaker had I not had some in the shack (2-56, 1/4 inch). What a hoot this little wonder is! 73, Dan -- N3ND ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KX1 UNBUILT KIT WANTED
Wonder if anyone has an unbuilt KX1 or any of it's accessory kits unbuilt they would like to sell? Please call Dan at 770-377-6000 or email me at [EMAIL PROTECTED] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
