Re: [Elecraft] Built in sound card
Where does one get sr5.exe? Tnx, Dick, KA1SA At 01:55 PM 5/24/2008, you wrote: Hi, If you have the latest firmware version, there is a new option in CONFIG:LIN OUT. Normally this is set to nor for normal. Press the 1 (A/B) button and it will change to Phones. The line out will now contain the exact same mix you are hearing in the headphones, so by enabling transmit monitoring, you will be recording on transmit, too. Beware that the volume control (AF gain) will now affect the line output. I am not sure what your troubles with setting levels are. If you are unsure if the level is right due to the general lack of any VU metering on PC recording software, you can use an oscilloscope program (sr5.exe is free) to watch that you are not overdriving the A/D. Knut - AB2TC Lee (WW2DX) wrote: Hi All, Starting to do some recordings direct from the Line out on the K3 to the Line in on my Mac. I'm having a hard time getting the levels right. I have more work to do here so I will post more about that later. My question is how does one get the monitor to pass out the Line out? I would like to record both sides of the QSO. At the moment it seems the monitor gets muted when in TX. 73 de Lee WW2DX K3 #464 snip -- View this message in context: http://www.nabble.com/Built-in-sound-card-tp17432860p17450338.html Sent from the Elecraft mailing list archive at Nabble.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 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] #911 built
The K3/100 kit I ordered last December arrived. It went together fairly smoothly (in about ten hours), and there were no error messages when I powered up. I also ordered Rose Kopp's cloth case which is attractive, well made, and perfect for packing the K3 in my roller board when I go to France for the summer. My only gripe is with the owner's manual. I have never used a software defined rig before, and I found the description of the various menu and config choices fairly baffling. Somehow (with help from Scott and Dale), I've got the K3 functioning well on both SSB receive and transmit, but I have little idea of what, exactly, the numerous parameters actually mean and how they interact with each other. Also, the acronyms tend to pile up a bit mercilessly. It would be great if there were an extended discussion of all these choices, a description of possible starting values and an explanation of what would change (and how much) if one chose different parameters. In brief, I would love a 'K3 for Idiots' type manual. Is there any chance that some kind soul would prepare such a document. Of course, it would have to change with software updates, but this would be less difficult in the absence of any need for a hard copy. Although the reflector has discussions of such matters, it would be nice to have a coherent (and authoritative) discussion in a single place of such topics as 'how to use the K3 to pull weak signals out of the noise' or 'what can be done - both good and bad - with AGC.' Of course, I could join other K3 users in discovering all this stuff by trial and error, but with all the available variables to play with, this could be life's work. Given that the K3 works well already, I suppose I could decide to leave well enough alone, but the manual leaves me with the distinct feeling that one could do much better. Alas, the reflector makes it clear that I could also do much worse as well. 73, Dick, KA1SA ___ 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] Built in sound card
Dick I couldn't find the program either, however Spectrum Lab and Spectrogram are freeware: http://freenet-homepage.de/dl4yhf/spectra1.html http://www.visualizationsoftware.com/gram.html 73 Dave, G4AON --- Where does one get sr5.exe? Tnx, Dick, KA1SA ___ 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] USB on all bands ??
Way before his time: that little ditty is ascribed to Robert McCloskey, State Department spokesman, Vietnam war era. Used by many since, like so many good sayings. Churchill was good at it too. David G3UNA Thank you Alan Greenspan!! Doug W6JD -- Original message -- From: Lyle Johnson [EMAIL PROTECTED] Thank you for the clarifications Ian. ... All it needs to swap sidebands is a few changes from + to - in the DSP code, and to link that to the band selector. It's all done for us in the K3... but are you *sure* you got those signs right, Lyle? :-) I know you believe you understand what you think I wrote, but I am not sure you realize that what you read is not exactly what I meant. :-) 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Flat Audio?
I'm not familiar with SR5, but the peak at 1600Hz MAY be deliberate: this has been used by some to increase readability in voice channels, though, not sure if this is good in the presence of high noise as on HF. David G3UNA - Original Message - From: n4lq [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Saturday, May 24, 2008 11:50 PM Subject: [Elecraft] K3 Flat Audio? Someone kindly mentioned SR5 here so I downloaded it and observed that my audio from the K3 had a pronounced peak around 1600 Hz. I compensated for this by adjusting the K3's RX equalizer so that EQ (6) is -4db, EQ (7) is -4db and EQ (8) is -2db. I now have a flat response across the spectrum. QRN is less distracting now. Also, my waterfall on MIxw is nice and even all the way across now. This isn't very scientific. I was just using band noise to adjust the EQ for a flat response but since band noise is what I'm dealing with, I felt it was adequate. Question is: Has anyone else noticed this? Do you think it's something to do with filter shape? Maybe the audio amp. is indeed flat but the filters aren't and I'm compensating for them. WhateverI'm just glad there K3 has that nice EQ! N4LQ Steve Ellington [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
[Elecraft] Re: Elecraft Digest, Vol 49, Issue 52
Good Morning Ian, This could be a good short piece in RadCom 73 Alan G0HIQ --- On Sun, 25/5/08, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Message: 1 Date: Sat, 24 May 2008 09:03:49 +0100 From: Ian White GM3SEK [EMAIL PROTECTED] Subject: Re: [Elecraft] USB on all bands ?? This is a classic detective story, with more than the usual share of red herrings! ... __ Sent from Yahoo! Mail. A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html ___ 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: Elecraft Digest, Vol 49, Issue 52
Hello ALan Good Morning Ian, This could be a good short piece in RadCom Been there, done that (or most of it) when the Editor asked for something historical for the July 2003 RSGB Anniversary issue. The information about 10MHz came along later, from amateurs who were personally involved with the international ISB links. The UK had a world-wide network of links between Commonwealth countries at that time, using transmitters supplied by Marconi, and thus had a very large influence on the international standards that emerged. What amazes me is the persistence of the belief that it's all because a 9MHz SSB generator and a 5MHz VFO produce opposite sidebands on 14MHz and 3.5MHz. Anyone who can rub two numbers together can see that isn't true... but that makes no difference at all. -- 73 from Ian GM3SEK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [K3] Logging programs and internal keyer
Carl Clawson wrote: 1) Have the computer generate the CW and waggle some lines to the radio. This is problematic because no modern operating system has deterministic timing. You never know when the OS will decide to go do something else for a] I think you mean consumer operating system for PCs, but even that is not entirely true. Whilst MS-DOS, as long as you restrict the TSRs, behaves more like an I/O library than an operating system and therefore it easy to control the timing, there are special operating systems around, intended for embedded systems, which do have tightly controlled real time responses. Even Windows has real time priorities, that have absolute priority over normal programs, and there are real time extensions to Linux. On Linux, writing a custom device driver is also easy, as long as you are happy writing state machine type code. One of the key applications for domestic consumer Windows is multimedia and Windows has a special multi-media timers mode that gives it a timing resolution of 1ms. I'd suspect there are lot of people who would claim that they could detect a misplaced note. A lot of Linux systems also run the clock at 1kHz. If you are in the sort of single user single application environment that you get with MS-DOS, Linux allows you to busy idle and read the time to microsecond, or better accuracy. The remaining problems are interrupt latency and inappropriate hardware interfaces. Windows and Linux can overrun clock interrupts at 1kHz, particularly if you use IDE drives without enabling DMA. The solution is to be careful with how you configure device drivers and to avoid actively using problem drivers. By inappropriate devices, I particularly mean USB. Another possible own goal would be using programming languages that are designed for use by semi-skilled programmers in non-realtime environments. These can often go into a garbage collection phase, where they compact their internal memory usage, which can take some time. That tends to include all languages called Basic. .NET and Java also suffer from this problem, even though Java and C# tend to be associated with more skilled programmers. If you want good real time performance, you need to use the lower level languages that are common in open source software, but disliked by most programming managers, because they require more skilled staff. while, and you get choppy code if you're unlucky. You also need a circuit to key from the parallel port, or use DTR/CTS on serial, which is OK until you reboot your computer and it keys up your radio. Plus, AFAICT you can get paddle inputs only via a parallel port. (Seems like a serial port could take A lot more people can use a keyboard at over 40 wpm than can use a paddle at those speeds! Paddle input isn't going to be a priority. paddle input on DSR RTS, but I don't recall ever seeing that. Probably because you'd need to add in both + and - power supplies. The advantage of the parallel port is that you can set a pin to +5 V to power your paddle input circuit.) As it's not a priority, you wouldn't expect many choices. However, stealing supply voltages from RS232C outputs is no problem. -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm ___ 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: Elecraft Digest, Vol 49, Issue 52
Ian White GM3SEK wrote: Hello ALan Good Morning Ian, This could be a good short piece in RadCom Been there, done that (or most of it) Sorry, that wasn't intended for the whole list. -- 73 from Ian GM3SEK ___ 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: Re: [Elecraft] Elecraft Digest, Vol 49, Issue 52
GM3SEK wrote: What amazes me is the persistence of the belief that it's all because a 9MHz SSB generator and a 5MHz VFO produce opposite sidebands on 14MHz and 3.5MHz. Anyone who can rub two numbers together can see that isn't true... but that makes no difference at all. 9+5.0=14.0. 9+5.5=14.5. 9-5.0=4.0. 9-5.5=3.5. Sorry, I don't see how that isn't true. I'm sure I can also recall some published transceiver designs that took advantage of this fact to provide two band coverage using a single VFO and 9MHz IF. - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/Re%3A-Elecraft-Digest%2C-Vol-49%2C-Issue-52-tp17455492p17456724.html Sent from the Elecraft mailing list archive at Nabble.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] K2 Power Problem
Don Wilhelm wrote: Larry, I suggest your first step is to count the turns on all the toroids in the Low Pass filter area. Count the number of times the wire passes through the center of the core. One extra turn would lower the cutoff frequency of the low pass filter. Since many bands are arranged in pairs - 40 and 60 meters are paired, 30 and 20 are paired, 17 and 15 are paired and 12 and 10 meters are paired. It looks like the higher band of each pair is giving you problems. Since 12 and 10 meters are close in frequency, the cutoff may have dropped below the 12 meter point. Again, check the number of turns on the toroids as a first step. 73, Don W3FPR Don I checked and recheck the counts on the toroids all are correct. I also removed the covers and rechecked the soldier joints all look good I tested the toroid pads with a DMM all resistance readings are good. I have check all the caps in the Low Pass Filter to insure they are correct. I have continuned to test, using the Elecraft N-Gen the reciever 80M loud 40M very light 30M loud 20M slightly less than 80/30 but more than 40 18M same as 20M 15M same as 20M 12M very light 10M very light (I have to get the parts and build the signal gen in the manual) before I can go on with the trace. All are with in limits until I got the the LPF/BPF TR and Mixer IF Amp, and Crystals but I think that some decrease maybe due to not enough signal strenght from the N-Gen.. - Larry KA0PLW K1 2530 K2 work in process -- View this message in context: http://www.nabble.com/K2-Power-Problem-tp17395957p17457426.html Sent from the Elecraft mailing list archive at Nabble.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] Built in sound card SR5
Just put SR5.exe in Google. It's the first link that shows up. Steve Ellington [EMAIL PROTECTED] - Original Message - From: Richard S. Lindzen [EMAIL PROTECTED] To: ab2tc [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Sunday, May 25, 2008 2:17 AM Subject: Re: [Elecraft] Built in sound card Where does one get sr5.exe? Tnx, Dick, KA1SA At 01:55 PM 5/24/2008, you wrote: Hi, If you have the latest firmware version, there is a new option in CONFIG:LIN OUT. Normally this is set to nor for normal. Press the 1 (A/B) button and it will change to Phones. The line out will now contain the exact same mix you are hearing in the headphones, so by enabling transmit monitoring, you will be recording on transmit, too. Beware that the volume control (AF gain) will now affect the line output. I am not sure what your troubles with setting levels are. If you are unsure if the level is right due to the general lack of any VU metering on PC recording software, you can use an oscilloscope program (sr5.exe is free) to watch that you are not overdriving the A/D. Knut - AB2TC Lee (WW2DX) wrote: Hi All, Starting to do some recordings direct from the Line out on the K3 to the Line in on my Mac. I'm having a hard time getting the levels right. I have more work to do here so I will post more about that later. My question is how does one get the monitor to pass out the Line out? I would like to record both sides of the QSO. At the moment it seems the monitor gets muted when in TX. 73 de Lee WW2DX K3 #464 snip -- View this message in context: http://www.nabble.com/Built-in-sound-card-tp17432860p17450338.html Sent from the Elecraft mailing list archive at Nabble.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 mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 269.24.1/1464 - Release Date: 5/24/2008 8:56 AM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 FM Operation
Okay people I have a question. How do I get more then 2 watts out of my K3 on FM? I have the FM filter installed and turned on. I have the FM filter bandwidth set at 13 KHZ.. I can tune successfully and put out power in all modes except FM (2 watts out max. The MF mode is working I checked it with another receiver but no real power out. My K3 has an operating KPA3 and tuner. Any suggestions would be greatly appreciated. Thanks 73 Dave KD1NA ___ 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] USB on all bands ??
In reply to a similar question at Dayton, Riley Hollingsworth specifically addressed the legitimacy of hams using LSB on 20 meters and above, and USB on 40 meters and below (with the possible exception of 160 meters which drew a laugh from the crowd). The convention currently in use is merely traditional and reflects military preference for standardization (due to channelization) promulgated in the early days of SSB. K9ZTV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft Digest, Vol 49, Issue 52
G4ILO wrote: GM3SEK wrote: What amazes me is the persistence of the belief that it's all because a 9MHz SSB generator and a 5MHz VFO produce opposite sidebands on 14MHz and 3.5MHz. Anyone who can rub two numbers together can see that isn't true... but that makes no difference at all. 9+5.0=14.0. 9+5.5=14.5. 9-5.0=4.0. 9-5.5=3.5. Sorry, I don't see how that isn't true. I'm sure I can also recall some published transceiver designs that took advantage of this fact to provide two band coverage using a single VFO and 9MHz IF. This particular mixing process gives 3.5MHz and 14MHz very conveniently - but it gives the SAME sideband on both bands. Imagine a phasing-type SSB generator with a 9.000MHz suppressed carrier frequency. When configured for USB, an audio tone at 1kHz gives output in the upper sideband, at 9.001MHz. Then: 9.001 + 5.300 = 14.301 - that's 14.300MHz USB 9.001 - 5.300 = 3.701 - that's 3.700MHz USB We have the SAME sideband on both 20m and 80m! To swap sidebands in this example requires the SSB generator to be switched to LSB. With a 1kHz tone, the output switches to 8.999MHz. Then the same calculations give: 8.999 + 5.300 = 14.299 - that's 14.300MHz LSB 8.999 - 5.300 = 3.699 - that's 3.700MHz LSB Once again, we get the SAME sideband on both 20m and 80m. A 9MHz filter exciter is slightly different, because it's the filter passband that is centred on 9.000MHz. Such exciters swap sidebands by switching between carrier oscillators. For USB the CO is below the filter passband at 8.9985MHz, or for LSB the CO is above the filter at 9.0015MHz. The arithmetic is a bit more messy, but the result is exactly the same - generating SSB at 9MHz does NOT automatically swap sidebands between 80m and 20m. That is clear mathematical proof that the 9MHz SSB exciters were NOT responsible for the ham USB/LSB convention. On the contrary, when changing between 20m and 80m they were forced to switch sidebands at 9MHz in order to *follow* that convention! There is also plenty of historical proof that the USB/LSB convention had been in existence for several years before the first published 9MHz design came along in 1956. -- 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek ___ 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] Finding K2 in Subject Line
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I've got my filters setup to send my mail to separate folders based on the subject line K2, K3 etcIf those two parameters aren't met then the mail stays in the general elecraft folder. I have been seeing more and more posts by people who are ignoring the courtesy of labeling their messages this way. Just about every thread in the last two months about the K3 firmware is a fine example. Of course when the great unwashed hoard don't pay any attention to the many times enunciated list rule of putting K3 in the subject line if the message has ANYTHING WHAT-SO-EVER TO DO WITH A K3, then that filtering system will be useless. If the list can't, for whatever reason, bring themselves to do this then Elecraft should create a separate list for the K3. Why is it so hard from grown people to identify their messages by the rig they are talking about? Want to send a message to the group about your K3, first characters in the subject line should be K3. Same applies to the other Elecraft models. Robert G. Strickland wrote: | TR... | | Just switched to Thunderbird from Eudora, but had filters in Eudora that | solved most of the K3 overburden [and I'm doing the same thing with | Thunderbird]. I made a filter for 'K3' and directed all that to the | waste basket. I recently made one for Lisagram and roofing filter, | both going to trash. I made a filter for 'K2' and directed that to a | special bin [?]. Then, everything else from Elecraft went to its own | bin. That worked okay for the most part. | | I tend to agree about your basic issue. I'm sure the K3 troops are | having fun, but it is a bit monotonous at times. OTOH, how many posts | have you seen like ...# up and running... which I'm sure don't do | much for the K3 people. Pays your money and takes your choice. - -- R. Kevin Stover, ACØH -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.7 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFIOWy711jxjloa2wsRAkdAAKDdvzIj6W+tRLRL14oHIQT2bAGtNACcCBRC +x2OPi9ydltFSjlrrp0DLsM= =wsHQ -END PGP SIGNATURE- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 FM Operation
Hi Dave, My K3 puts out the full 12 watts on FM. Basic rig, no PA, nor ATU. In fact I have been woirking some EU stations on the Sporadic E opening on 10FM today. 73 John G3YPZ Dave Jeanne Robertson wrote: Okay people I have a question. How do I get more then 2 watts out of my K3 on FM? I have the FM filter installed and turned on. I have the FM filter bandwidth set at 13 KHZ.. I can tune successfully and put out power in all modes except FM (2 watts out max. The MF mode is working I checked it with another receiver but no real power out. My K3 has an operating KPA3 and tuner. Any suggestions would be greatly appreciated. Thanks 73 Dave KD1NA ___ 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] USB on all bands ??
G'day, snipo So, if we are going to annoy someone, that means we can't do it? What? Then we shouldn't be working on getting into space, that is likley to annoy someone... the folks that live there for one... snipo Too right. The surest sign that there is intelligent life out there is that they haven't tried to contact us. Regards, Mike VP8NO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 FM Operation
john petters wrote: Hi Dave, My K3 puts out the full 12 watts on FM. Basic rig, no PA, nor ATU. In fact I have been woirking some EU stations on the Sporadic E opening on 10FM today. 73 John G3YPZ Mine will put out 100W, though it caused a squawking noise to come from the shack computer and the mouse pointer to freeze! So I have been working 10 FM using 30W. K3 stays cool and I haven't heard any fans come on. I asked for audio reports and twice received the reply beautiful audio. If you can't get full audio then the only thing I can think of is to check the TX Gain calibration on 10m. Can you get full power out on CW at that end of the band? When doing the gain calibration on mine I noticed that the current meter on my power supply only showed about 8A for 50W on 10m compared to about 12A on the other bands. That struck me as a bit odd (the K2 was least efficient on 10m) but it seems to work OK so I haven't investigated further. - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/K3-FM-Operation-tp17457370p17458571.html Sent from the Elecraft mailing list archive at Nabble.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] Elecraft Digest, Vol 49, Issue 52
It does not give the same sideband on 80 and 20. You also have to consider that the rotation of the tuning capacitor of the VFO turns the opposite direction for 20 as it does for 80. You will find this on the dial of many pre 1970 commercial offerings. Everyone needs to use one of the old SSB rigs for a few days to appreciate how good even the worst of today's rigs are. Then use a crystal controlled one or two tube transmitter and a 40s or 50s affordable receiver like a S-38 or NC-53 and appreciate how good the 60s SSB rigs were compared to the 40s and 50s. Cookie, K5EWJ --- Ian White GM3SEK [EMAIL PROTECTED] wrote: G4ILO wrote: GM3SEK wrote: What amazes me is the persistence of the belief that it's all because a 9MHz SSB generator and a 5MHz VFO produce opposite sidebands on 14MHz and 3.5MHz. Anyone who can rub two numbers together can see that isn't true... but that makes no difference at all. 9+5.0=14.0. 9+5.5=14.5. 9-5.0=4.0. 9-5.5=3.5. Sorry, I don't see how that isn't true. I'm sure I can also recall some published transceiver designs that took advantage of this fact to provide two band coverage using a single VFO and 9MHz IF. This particular mixing process gives 3.5MHz and 14MHz very conveniently - but it gives the SAME sideband on both bands. Imagine a phasing-type SSB generator with a 9.000MHz suppressed carrier frequency. When configured for USB, an audio tone at 1kHz gives output in the upper sideband, at 9.001MHz. Then: 9.001 + 5.300 = 14.301 - that's 14.300MHz USB 9.001 - 5.300 = 3.701 - that's 3.700MHz USB We have the SAME sideband on both 20m and 80m! To swap sidebands in this example requires the SSB generator to be switched to LSB. With a 1kHz tone, the output switches to 8.999MHz. Then the same calculations give: 8.999 + 5.300 = 14.299 - that's 14.300MHz LSB 8.999 - 5.300 = 3.699 - that's 3.700MHz LSB Once again, we get the SAME sideband on both 20m and 80m. A 9MHz filter exciter is slightly different, because it's the filter passband that is centred on 9.000MHz. Such exciters swap sidebands by switching between carrier oscillators. For USB the CO is below the filter passband at 8.9985MHz, or for LSB the CO is above the filter at 9.0015MHz. The arithmetic is a bit more messy, but the result is exactly the same - generating SSB at 9MHz does NOT automatically swap sidebands between 80m and 20m. That is clear mathematical proof that the 9MHz SSB exciters were NOT responsible for the ham USB/LSB convention. On the contrary, when changing between 20m and 80m they were forced to switch sidebands at 9MHz in order to *follow* that convention! There is also plenty of historical proof that the USB/LSB convention had been in existence for several years before the first published 9MHz design came along in 1956. -- 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek ___ 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 10M Birdie
Hi, Anyone else seeing a birdie on 28004.9+/-? With no antenna, CW, 500Hz hardware filter, 50Hz DSP, I see DISP readings: -21dBV pre-amp OFF -1.4dBV pre-amp ON In either case the ATT makes only another -2dBV difference. It doesn't display on the S-meter but given many workable signals don't on 10M it is relevent. Regards, Mike VP8NO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 FM Operation ???
So many msg abt K3 and FM. I sit puzzled why in the world would one bother to wait and buy a K3 JUST TO RUN FM??? The K3 is a CW radio. pure and simple, and the other modes are just thrown in My point is why waste a great K3 on something virtually any radio today can do wellFM !!??!! That is, no use for vy narrow filtering in K3 on FM, nor many of its other features... and there are rcvrs more sensitive if u must have that. Sign me puzzled 73 Charles Harpole [EMAIL PROTECTED] Date: Sun, 25 May 2008 07:36:46 -0700 From: [EMAIL PROTECTED] To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 FM Operation john petters wrote: Hi Dave, My K3 puts out the full 12 watts on FM. Basic rig, no PA, nor ATU. In fact I have been woirking some EU stations on the Sporadic E opening on 10FM today. 73 John G3YPZ Mine will put out 100W, though it caused a squawking noise to come from the shack computer and the mouse pointer to freeze! So I have been working 10 FM using 30W. K3 stays cool and I haven't heard any fans come on. I asked for audio reports and twice received the reply beautiful audio. If you can't get full audio then the only thing I can think of is to check the TX Gain calibration on 10m. Can you get full power out on CW at that end of the band? When doing the gain calibration on mine I noticed that the current meter on my power supply only showed about 8A for 50W on 10m compared to about 12A on the other bands. That struck me as a bit odd (the K2 was least efficient on 10m) but it seems to work OK so I haven't investigated further. - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/K3-FM-Operation-tp17457370p17458571.html Sent from the Elecraft mailing list archive at Nabble.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 mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] [K3] Logging programs and internal keyer
Joe Subich, W4TV-3 wrote: None of the three most commonly used contest logging programs support the KY command. All three authors/developer groups have investigated the KY command and rejected supporting it. The issues are: 1) KY is not universally supported - it is only useful with K2, K3 and some Kenwood transceivers. 2) once a message has been sent to the radio it is not possible to edit it (call corrections). 3) buffer management is very difficult - it is not possible for the logging program to know when a message has completed in order to implement timed delays (or repeating messages) with a known time between the end of the message and start of the repeat. Although 1) is true, I'm surprised 2) is a big deal for contesting, when you are only sending very short overs. In the K2, it is possible to abort the unsent text by sending a KY @; command. I'm not sure if Wayne has implenented this in the K3 yet. 3) is completely incorrect as far as the K2 and K3 goes. It is possible to poll the radio and find out if the buffer is full, part full or empty. In fact it is essential to do this as the K2 doesn't like being sent text its buffer doesn't have room for. - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/-K3--Logging-programs-and-internal-keyer-tp17451428p17458853.html Sent from the Elecraft mailing list archive at Nabble.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] K3 FM Operation ???
Charles Harpole wrote: So many msg abt K3 and FM. I sit puzzled why in the world would one bother to wait and buy a K3 JUST TO RUN FM??? The K3 is a CW radio. pure and simple, and the other modes The K3 is a multi-mode radio Charles. 10FM is a particular favourite for me and I always missed this in the K2. The 'other modes' are not simply just thrown in, they have been planned and executed beautifully. If you only want cw, try a K1 or a KX1. 73 Ian -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP K2 #4044 |K3 #455 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft Digest, Vol 49, Issue 52
WILLIS COOKE wrote: It does not give the same sideband on 80 and 20. You also have to consider that the rotation of the tuning capacitor of the VFO turns the opposite direction for 20 as it does for 80. The direction of tuning is not what inverts the sideband. The only thing that inverts the sideband is if the SSB frequency is subtracted in the mixing process. So: 9MHz USB + 5MHz VFO = 14MHz USB 9MHz USB - 5MHz VFO = 4MHz USB - sideband is not inverted. But in Norgaard's 'New Approach to SBB Generation' in QST, June 1948, the SSB is generated on 5MHz and the VFO is around 9MHz, so: 9MHz VFO + 5MHz USB = 14MHz USB 9MHz VFO minus 5MHz USB = 4MHz **LSB** - now the sideband is inverted. If anyone is still in doubt about this, words aren't going to help any more. Please take a few minutes with a pencil and a calculator, punch in some numbers and verify it for yourself. -- 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 10M Birdie
Mike Harris wrote: Hi, Anyone else seeing a birdie on 28004.9+/-? Hi Mike I have it also. 73 John G3YPZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 10M Birdie
Mike Harris wrote: Hi, Anyone else seeing a birdie on 28004.9+/-? With no antenna, CW, 500Hz hardware filter, 50Hz DSP, I see DISP readings: -21dBV pre-amp OFF -1.4dBV pre-amp ON In either case the ATT makes only another -2dBV difference. It doesn't display on the S-meter but given many workable signals don't on 10M it is relevent. I don't hear a birdie on that frequency, but centred around there is a broad peak of rasping noise and transient carriers that only appear while rotating the VFO A knob. -- 73 from Ian GM3SEK ___ 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] W1 - no autoscaling
Hi all I just finished building the W1 wattmeter kit. All went fine without any problems. The part Checkout and Calibration (p9 of the manual) was spot on. I have 4,50V DC at TP1 and 1Meg-ohm across the battery terminals. First power-on test went flawlessly - The FWD leds blinked, then the SWR leds, then the 1,4 / 14 / 140W scale leds. Then things went acting funny. Powering the W1 from my MFJ 4125 power supply and running my K3 into the W1 and terminating into a known good dummy load I get perfectly accurate power and SWR readings when running no more than 1,4 watts. However, the W1 does not autoscale when my K3's output power goes above 1,4 watts. Whichever power I run, the W1 keeps showing the 1,4W green led and I get full scale FWD power readings. I have also tested the W1 running on a 9V battery and I get the very same results. The manual says that U4, running FW 1.05, should take care of autoscaling. but apparently there's something wrong here. The funny thing is that the SWR reading seems to be fine. Using 1W, 10W and 100W show consistent SWR readings. Any thoughts on where I should look first? As stated before, the lowest power level shows perfectly accurate power/SWR readings. Thanks for any help Glenn ON4WIX ___ 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-Dust Cover
I received my very nice personalized K3 cover from Rose Kopp. A money order was mailed last Monday from Mississippi to Montana. It was received Wednesday and the cover was mailed Thursday, and received here Saturday. Now that's what I call SERVICE! ORIN N5ORT [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
Re: [Elecraft] K3 10M Birdie
I also find one there, very weak however. I also heard a few more up the band, all very weak. When switching on the ant the band noise pretty much covers them up. Dale, K9VUJ On 25, May 2008, at 9:54, Mike Harris wrote: Hi, Anyone else seeing a birdie on 28004.9+/-? With no antenna, CW, 500Hz hardware filter, 50Hz DSP, I see DISP readings: -21dBV pre-amp OFF -1.4dBV pre-amp ON In either case the ATT makes only another -2dBV difference. It doesn't display on the S-meter but given many workable signals don't on 10M it is relevent. Regards, Mike VP8NO ___ 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] Re: USB on all bands ??
The convention currently in use is merely traditional and reflects military preference for standardization (due to channelization) promulgated in the early days of SSB. LSB use on 40m and below is *strictly* a HAM convention. Military, commercial marine, and civil aviation standardized on USB from the very earliest days of the SSB era. Almost all *early* non-shipboard US military sideband sets offered *only* USB mode. This includes the late 1950s USAF AN/ARC-65 and the USN AN/ARC-38A sets for aircraft, and the AN/GRC-106 and AN/PRC-47 for ground service. These were among the earliest SSB sets in common military use. The succeeding generation of sets offered selectable sideband. This includes the USAF AN/ARC-58, USN AN/ARC-94 (618T-2), AN/FRC-93 (KWM-2A), AN/URC-32, AN/URC-58 and AN/GRC-165 (Harris RF-301), AN/PRC-74, RT-618/URC, T-827/URT, R-1051/URR, etc. But these all date from the early 1960s and later, long after HAMs had settled on LSB on 40m and below. Even though some later sets offered LSB, or even ISB, it was almost never used. When I was associated with US military communication systems, the only time I ever saw LSB used on a military frequency was on Military Affilliated Radio System (MARS) nets. Since MARS is comprised mainly of HAMs, years ago *some* circuits followed the HAM convention for net frequencies below about 7.5 MHz. But even MARS eventually went completely to USB. Mike / KK5F ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Built in sound card SR5
Look here: http://www.ar5.ndo.co.uk/html/SR5Ver.html All I did was Google sr5.exe and this was the first hit. Knut - AB2TC n4lq wrote: Just put SR5.exe in Google. It's the first link that shows up. Steve Ellington [EMAIL PROTECTED] - Original Message - From: Richard S. Lindzen [EMAIL PROTECTED] To: ab2tc [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Sunday, May 25, 2008 2:17 AM Subject: Re: [Elecraft] Built in sound card Where does one get sr5.exe? Tnx, Dick, KA1SA snip -- View this message in context: http://www.nabble.com/Built-in-sound-card-tp17432860p17459496.html Sent from the Elecraft mailing list archive at Nabble.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] Re: USB on all bands ??
As long as I worked for Marconi Marine and later Mackay Radio, I don't ever remember having a shipboard receiver that would work lower sideband. I have a Siemens E-410 solid state set that is absolutely top notch and has provisions for a LSB module, but I have never been able to find one! The DEBEG guys in Germany, who I got a service manual from never recalled even seeing a LSB module. I had a couple of them\ looking in flea markets there and they never turned up one. Letters to DEBEG and Siemens turned up nothing. Siemens says they didn't make many modules and had none in stock at any price. I had a PRC-74 for a good while and finally sold it as there was no LSB. Helluva a good working and very rugged radio. 73, Sandy W5TVW - Original Message - From: Mike Morrow [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, May 25, 2008 11:07 AM Subject: [Elecraft] Re: USB on all bands ?? The convention currently in use is merely traditional and reflects military preference for standardization (due to channelization) promulgated in the early days of SSB. LSB use on 40m and below is *strictly* a HAM convention. Military, commercial marine, and civil aviation standardized on USB from the very earliest days of the SSB era. Almost all *early* non-shipboard US military sideband sets offered *only* USB mode. This includes the late 1950s USAF AN/ARC-65 and the USN AN/ARC-38A sets for aircraft, and the AN/GRC-106 and AN/PRC-47 for ground service. These were among the earliest SSB sets in common military use. The succeeding generation of sets offered selectable sideband. This includes the USAF AN/ARC-58, USN AN/ARC-94 (618T-2), AN/FRC-93 (KWM-2A), AN/URC-32, AN/URC-58 and AN/GRC-165 (Harris RF-301), AN/PRC-74, RT-618/URC, T-827/URT, R-1051/URR, etc. But these all date from the early 1960s and later, long after HAMs had settled on LSB on 40m and below. Even though some later sets offered LSB, or even ISB, it was almost never used. When I was associated with US military communication systems, the only time I ever saw LSB used on a military frequency was on Military Affilliated Radio System (MARS) nets. Since MARS is comprised mainly of HAMs, years ago *some* circuits followed the HAM convention for net frequencies below about 7.5 MHz. But even MARS eventually went completely to USB. Mike / KK5F ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 269.24.1/1465 - Release Date: 5/25/2008 1:22 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 CW train of dots when ptt
I made yesterday the mod suggested by Don about having an external PTT for CW, and a problem came up. After I found the problem I have had a talk with the K2 owner and he told me that the problem was present even before the mod ( He wasn't bothered about this because he doesn't go cw on air... ). Straight to the problem: When I push the new PTT in CW mode the radio starts transmitting a train of dots when in iambic mode (tried A or B, no change) and a fixed note when in straight key mode. On SSB everything seems to work good, when i press the PTT foot switch the radio goes tx regularly. I don't use an external keyer, just a bencher iambic key connected directly with the radio via the stereo jack on the rear panel. I'm pretty sure about the mod (used a BS170 instead of 2N7000 and a 74HC153 instead 74AC153 but these shouldn't be a problem) and the confirm of my friend who had this trouble before the mod made me think about investigate somewhere else. He confirmed to me that when in CW mode when he pressed the PTT on the mic the radio started transmitting dots. The key is not operational with the radio in any case (and wasn't before the mod), neither on test mode. Tried to modify QSK delay with no success. Something suggest me that the problem could be in some software configuration i can't find, or in the PTT/DOT coexistence on the same pin of the key socket. Any Idea TNX and 73 de Giulio IW3HVB -- Follow the path of the Prophets... ___ 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] USB on all bands ??
Hi, Had to throw my 2 cents worth in. Personally I would welcome a shift to USB on the lower bands, but I am not very optimistic it will happen. With DSP, adding LSB to any radio is practically without cost (example K3: nil (ALT is required by some CW ops) except for a few engineering hours) so there is no great incentive for manufacturers to drop the LSB selection. I operate mainly above 10MHz so I find that the few times I go on the lower bands, I am a klutz tuning because my brain tells me to tune in the opposite direction of what is actually needed. So here is a request for a new feature: An option to reverse the tuning direction of the tuning knob (per band). Anybody else feeling a need for this luxury feature? Knut - AB2TC Lyle KK7P wrote: ... I remember when I was accused of trying to ruin packet radio by running that nasty TCP/IP stuff over the air too. :-) And see what happened? Not many people on packet 20 years later! Now at least I know whose fault it is! 73, Lyle KK7P snip -- View this message in context: http://www.nabble.com/Dayton-Discovery-tp17296879p17459932.html Sent from the Elecraft mailing list archive at Nabble.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] USB on all bands ??
Comments below. - Original Message - From: Tom Childers, N5GE [EMAIL PROTECTED] To: Ron D'Eau Claire [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Sunday, May 25, 2008 12:03 AM Subject: Re: [Elecraft] USB on all bands ?? On Sat, 24 May 2008 20:33:38 -0700, Ron D'Eau Claire [EMAIL PROTECTED] wrote: True, Brian. A few years ago a buddy and I were chatting on the air with our K2s comparing the performance of the filters. As part of our testing we made sure we had no adjacent frequency signals and then switched sidebands back and forth to see how the rigs sounded. A guy broke into our QSO berating us for transmitting on an illegal sideband for that band. I think Ian may have touched on the source of his misunderstanding about the IARU adopting the current sequence of sidebands used. I don't know if other countries have rules about that, but the USA does not. But the breaker on our frequency wasn't hearing that. He KNEW we were the scum of the bands for our continued illegal act ivies and was quick to point that out! His position was that if what we were doing was not illegal yet, it should be. My concern here is that as the Ham bands become more and more populated with non-technical operators, no matter how skilled at operating they might be, many will tend to want to legislate more and more uniformity in Ham operations. That can quickly get in the way of free-ranging experimentation, simply playing with old or unusual modes of communications or doing anything they don't agree supports their personal goals. We need room for both as we always have: those for whom their goal in the hobby is to be the best possible operator, based on their DX, contest scores or their participation in public service activities, and those for whom the hobby is a venue for experimentation and tinkering with equipment. We Amateur Radio Operators have contributed greatly in both arenas over the years. I hope we will continue to do so. But it requires the freedom for some Hams to do something many others think is absurd, obviously useless and wasteful of spectrum space while the experimenters take care not to abuse their privileges within the rules. Of course there will always be those who believe the others should be shut down. It's up to the rest of us to keep both camps relaxed and tolerant as much as we can. Ron AC7AC [snip] Ron, When someone tells you are using the wrong sideband, just say that you are trying to be diverse by giving each sideband their fair share of use/implementation ;O) Tom, N5GE - SWOT 3537 - Grid EM12jq Or you could simply state that you had been trying a fully legal mode at reduced power, AM. That mode uses both sidebands at the same time regardless of the band being transmitted on (80, 40, 20, 160, etc.). Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety An excerpt from a letter written in 1755 from the Assembly to the Governor of Pennsylvania. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE Tom, I like the tag lines you use. Very thought provoking and timely. Keep it up. 73, Jim KD5VXH ___ 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] What standard/Why a standard? (WAS: USB on all bands ??)
Like many developments in radio, Amateurs led the way with some Hams tinkering with SSSC (single sideband suppressed carrier) long before WWII. (One reference I've seen reports on-air Amateur experiments in 1933.) Also, like much of radio technology the basics were understood long before that. In the case of SSSC the understanding appears to go back to the first detailed analysis of amplitude-modulated signals about 1915. And, like so many things, the understanding preceded the technology needed to make it practical. Hams, not being necessarily practical folks, pursued its use on the bands well before it was adopted for general commercial and military use. I think Villard at the Stanford University Amateur Radio club is credited (blamed?) for launching the Amateur SSB revolution on 75 meters about 1947 that brought Amateur use of SSB into the mainstream. It's likely the wall-to-wall heterodynes on the 'phone' bands caused by the huge increase in Hams on the air in the 1950's were a powerful inducement. Imagine a dozen, strong key-down CW carriers, all within 2 kHz of each, other producing a howl of multiple heterodynes on top of several weaker phone signals and you have an idea of what a typical phone band sounded like in the busy evening hours back then. Multiple notch filters were seldom enough to copy anything out of the cacophony. At that time SSB's general use required the development of adequately-stable receivers and transmitters. I recall reading several engineering journals in the 1950's reporting that they doubted sufficiently stable oscillators would *ever* be developed so the signals could be received by non-technical operators in the military and commercial services. That changed very quickly. My point is that Hams evolved their own standards for whatever reason before SSB was in general use by other services, so it is the other services who failed to follow the established standards on the Ham bands, not the other way around. But, then again, there's no more reason for commercial or military users to follow what Hams do than there is for Hams to follow what the commercial and military users do. Indeed, since a large part of Amateur radio is experimenting and try out things just because they interest someone, there's a lot of excellent reasons not to follow military and commercial standards. Granted, failing to follow commercial practice drives the pure operators a bit nuts because they can't buy any old plug-'n-play rig designed for commercial or military work and do what other Hams are doing. But *not* copying what the other services are doing is the point of Amateur radio for many. It's why Villard launched the SSB revolution in the first place. Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 10M Birdie
That's what I hear as well. 73'e, Evert PA2KW --- I don't hear a birdie on that frequency, but centred around there is a broad peak of rasping noise and transient carriers that only appear while rotating the VFO A knob. -- 73 from Ian GM3SEK ___ 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] K2 CW train of dots when ptt
Giulio, Yes, the ptt line of the mic is the same as the dot-paddle. This is one of the design flaws in the K2. Don Wilhelm made a beautiful mod for this, but it is not a simple one. You can see it on his website. Over to you Don. Arie PA3A -Oorspronkelijk bericht- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Namens Giulio Pico Verzonden: zondag 25 mei 2008 18:37 Aan: elecraft@mailman.qth.net Onderwerp: [Elecraft] K2 CW train of dots when ptt I made yesterday the mod suggested by Don about having an external PTT for CW, and a problem came up. After I found the problem I have had a talk with the K2 owner and he told me that the problem was present even before the mod ( He wasn't bothered about this because he doesn't go cw on air... ). Straight to the problem: When I push the new PTT in CW mode the radio starts transmitting a train of dots when in iambic mode (tried A or B, no change) and a fixed note when in straight key mode. On SSB everything seems to work good, when i press the PTT foot switch the radio goes tx regularly. I don't use an external keyer, just a bencher iambic key connected directly with the radio via the stereo jack on the rear panel. I'm pretty sure about the mod (used a BS170 instead of 2N7000 and a 74HC153 instead 74AC153 but these shouldn't be a problem) and the confirm of my friend who had this trouble before the mod made me think about investigate somewhere else. He confirmed to me that when in CW mode when he pressed the PTT on the mic the radio started transmitting dots. The key is not operational with the radio in any case (and wasn't before the mod), neither on test mode. Tried to modify QSK delay with no success. Something suggest me that the problem could be in some software configuration i can't find, or in the PTT/DOT coexistence on the same pin of the key socket. Any Idea TNX and 73 de Giulio IW3HVB -- Follow the path of the Prophets... ___ 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] 9MHz IF +/- 5MHz VFO -- sideband inversion
On May 25, 2008, at 7:50 AM, WILLIS COOKE wrote: It does not give the same sideband on 80 and 20. Actually, it does. Imagine you are generating your sideband at a 9MHz IF. In the IF you are generating USB, i.e. you have a 9MHz carrier and 1KHz and 1.2KHz tones injected to the mic jack. This produced a spectrum at 9MHz of: 9000.0 KHz - carrier (suppressed) 9001.0 KHz - first tone 9001.2 KHz - second tone. Now we mix subtractively with 5100 KHz to produce a result in the 80M band: 9000.0 - 5100 = 3900.0 KHz 9001.0 - 5100 = 3901.0 KHz 9001.2 - 5100 = 3901.2 KHz Notice that the spectral lines are above the carrier in increasing frequency. That is USB. Now let's repeat this using additive mixing to get 20M. 9000.0 + 5100 = 14100.0 KHz 9001.0 + 5100 = 14101.0 KHz 9001.2 + 5100 = 14101.2 KHz The spectral lines are still above the carrier indicating USB. Now if you repeat the process by setting the VFO to 5500.0 KHz you will see that the radio would tune to a lower frequency on 80M while tuning to a higher frequency on 20M thus indicating that the radio tunes backwards for 80M but in both cases it still produces an USB signal. -- 73 de Brian, WB6RQN Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT 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] K3 FM Operation ???
On May 25, 2008, at 7:57 AM, Charles Harpole wrote: So many msg abt K3 and FM. I sit puzzled why in the world would one bother to wait and buy a K3 JUST TO RUN FM??? The K3 is a CW radio. pure and simple, and the other modes are just thrown in My point is why waste a great K3 on something virtually any radio today can do wellFM !!??!! That is, no use for vy narrow filtering in K3 on FM, nor many of its other features... and there are rcvrs more sensitive if u must have that. Sign me puzzled 73 The K3 is a great receiver for whatever mode. One problem I have always had to contend with in FM is desense from a strong in-band signal. I would hope that would not be a problem with the K3 as it is with most purpose-built 'FM' receivers. If you think about it, the receiver is a linear translator. It takes a signal at a high frequency and it translates it to a very low frequency while preserving the time, amplitude, and frequency relationship between spectral lines in the passband. In the case of SSB it translates it to baseband where the ear detects it. In the case of CW it translates it to a very low (AF) frequency where the ear again acts as a detector. In the case of digital modes like FM, PSK, MFSK, RTTY, PACTOR, etc., it translates the signal to a very low IF (about 1.5KHz) where it is detected by hardware operating there. The point is that, while the end-function is different, the mode of operation is similar. The receiver is a linear translator to either baseband or very low IF. -- 73 de Brian, WB6RQN Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT 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] K3 10M Birdie
I have the birdie at 28004.5kHz. No raspy noises when tuning. Knut - AB2TC Evert Bakker (PA2KW) wrote: That's what I hear as well. 73'e, Evert PA2KW --- I don't hear a birdie on that frequency, but centred around there is a broad peak of rasping noise and transient carriers that only appear while rotating the VFO A knob. -- 73 from Ian GM3SEK snip -- View this message in context: http://www.nabble.com/K3-10M-Birdie-tp17458757p17460535.html Sent from the Elecraft mailing list archive at Nabble.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] USB on all bands ??
I had a PRC-74 for a good while and finally sold it as there was no LSB. You're right about it not having LSB, Sandy. I've got an AN/PRC-74B that I've never fired up, so I had forgotten that it should not have been on my list of LSB-capable military sets. At least the 74B covers 20 meters (it goes up to 18 MHz), unlike the earlier models that only covered up to 12 MHz. That makes those models in practice CW-only in the ham bands below 7.3 MHz, except for those five USB 60 meter channels. FWIW, I'd be happy with a shift to USB on all bands, but there's some vintage ham gear out there that might not be readily adaptable. The only real plus to LSB mode is that signal pitch gets higher as the receiver is tuned higher, which seems more natural to me. But it isn't an important issue. It's like tax reform...a good idea that will never happen. 73, Mike / KK5F ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] USB on all bands ??
Try a CQ on the other sideband. Sure, most ops won't copy but those who will might produce an interesting QSO. If they have an Elecraft rig, it won't matter, since it covers both sidebands. And you might smoke out someone who has a rig that doesn't work on the other sideband. Who knows, you might start a movement. At least you'll demonstrate that USB actually works on 75 meters! (I'd be there are a few operators who aren't sure about that.) Avoiding doing anything different is the surest way to avoid ever doing anything new! You will always be following the pack. Ron AC7AC -Original Message- I had a PRC-74 for a good while and finally sold it as there was no LSB. You're right about it not having LSB, Sandy. I've got an AN/PRC-74B that I've never fired up, so I had forgotten that it should not have been on my list of LSB-capable military sets. At least the 74B covers 20 meters (it goes up to 18 MHz), unlike the earlier models that only covered up to 12 MHz. That makes those models in practice CW-only in the ham bands below 7.3 MHz, except for those five USB 60 meter channels. FWIW, I'd be happy with a shift to USB on all bands, but there's some vintage ham gear out there that might not be readily adaptable. The only real plus to LSB mode is that signal pitch gets higher as the receiver is tuned higher, which seems more natural to me. But it isn't an important issue. It's like tax reform...a good idea that will never happen. 73, Mike / KK5F ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 CW train of dots when ptt
2008/5/25 Arie Kleingeld PA3A [EMAIL PROTECTED]: Giulio, Yes, the ptt line of the mic is the same as the dot-paddle. This is one of the design flaws in the K2. Don Wilhelm made a beautiful mod for this, but it is not a simple one. You can see it on his website. The mod I was referring on the msg was exactly the one suggested by Don, but still the problem seems to remain, altough the ptt input on the new board works fine on ssb. 73 de Giulio IW3HVB ___ 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] Using the V6.2 lite Softrock Rx as a panadaptor with Elecraft K3
As a panadaptor for my Elecraft K3, I have one of KB9YIG's 6.2 lite SR40 receivers with the special IF for the K3 (32764 KHz crystal). This gives the SR40 a LO freq of 8191, 24 Khz below the 8215 IF of the K3. I routinely watch a panorama of about +/- 12 Khz on the PowerSDR display (using 96 KHz samping). I was watching +/- 24 KHz initially but my power supply gave me a weak constant waterfall birdie that I haven't eliminated yet. I also have one of Jack Smith's Z-1U buffer amplifiers (Clifton Laboratories) running between the K3's KXV3 output and the SR40 for isolation. (I didn't test to see if the isolation is really needed - maybe not, since the LO is offset 24 KHz.) The above combination is giving me the best panadaptor I have ever used, and I have been using them since Heathkit made one for the Heathkit SB303 in the early '70's. The current ICOM receivers have panadaptors, but the resolution is lacking. With KB9YIG's SR40 rx and PowerSDR, I can even identify the various signal types on sight. I am using the version of PowerSDR that has simultaneous waterfall and panorama. I have PowerSDR calibrated so that the display gives an S9 reading when the K3 sees a 50uV S9 signal from my XG-2 generator. Sensitivity is amazing - I can see signals on the waterfall well down into the noise level. As an indication of what is possible software-wise with the Panadaptor add-on, I am able to run PowerSDR and Skimmer (or Rocky, just as well) simultaneously here on a Sempron 2 GHz 1GB machine, along with Writelog with RTTYRITE in CW mode as well as CWGET all simultaneously. PSDR and Skimmer are both using the same two input channels of my Delta-44, and Skimmer sees the entire I/Q IF range, not just the audio. No audio routing tricks or Y cables are needed. The remainder are using the on-board VIA AC97 sound card. Total CPU usage ranges 50 - 70% with all running or around 20-40% with PowerSDR but without Skimmer/Rocky. The computer also generates CW and I have not seen any CW keying hiccups so far in limited SP yesterday in the contest even at 70% CPU. This machine does not use on-board video, which might slow it further - it has a dual-monitor AGP video card. This is a simple panadaptor setup - I view only and have no K3 control or click tuning from PowerSDR or Rocky/Skimmer. FYI, it is often possible to run multiple apps on the same sound card - I once had 8-10 copies of MMTTY running on a VIA AC97 on-board sound card under XP home as a test to see if multiple simultaneous RTTY profiles worked. Each copy only added about 2% to the CPU load. Note: I understand KB9YIG has retired this particular kit, but a replacement may be available in the future (see [EMAIL PROTECTED] ). Jerry W4UK ___ 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 Filter Characterization using Spectrum lab
I have noticed significant and unpleasant audio filter spectrum shape differences by ear when I change filter bandwidths as well as change from LSB to USB or CW to CW reverse. This is not an issue at CW filter bandwidths but can be annoying at phone bandwidths using the 6 KHz filter. When LSB is equalized for a flat pass band (minor tweaks), USB audio is highly skewed at high frequencies. Level at 2.7 KHz is 14dB above the level at 500 Hz in USB. I am wondering if anyone else has notice the effects I am reporting on here and whether there is something I can do about it. Unless I have a bad filter, I see a possible need to save Rx equalization by selected filter and operating mode. Either that or something is wrong on my end. My guess is that the Tx audio has the same issue but I have done nothing to test that yet. The changes in sound quality are not trivial. Filters are properly enabled and set up with proper offset and gain. There were no signals in the pass band when the data below was collected. I collected data to characterize the issue using Spectrum Laboratory V2.7, using K3 line level out. The two filters characterized here are the stock 2.7 KHz five-pole filter and the 6 KHz 8-pole filter. I illustrate measurements at BW = 2.7 KHz and BW = 2.8 KHz below with USB and LSB. I first set up the Rx audio equalization to obtain a maximally flat pass band on LSB and the 2.7 KHz filter at 2.7 KHz BW. For LSB The 2.7 KHz filter at 2.7 KHz BW is flat (zero slope) from 250 Hz to 2750 Hz with an absolute level of -62 dB at 1KHz, an arbitrary reference point to compare overall gain changes. When I shift BW to 2.8 KHz (now using 6 KHz roofing filter) the audio spectrum has a slope of -1.7 dB per KHz and the 1 KHz level went down 2 dB. The LSB data isn't too bad. The problem is USB on the 6 KHz filter. For USB The 2.7 KHz filter at 2.7 KHz BW has a spectrum slope of +1.7 dB per KHz and the 1 KHz level is -64 dB. When I shift BW to 2.8 KHz (now using 6 KHz roofing filter) the audio spectrum has a slope of +5.3 dB per KHz. This is very noticeable to the ear. There is also a droop or saddle in the filter response down 6 dB in the center of the pass band and the overall level drops 8 dB (S-meter drops 2-S units on background noise). The overall effect is unpleasant with the accentuated highs and it requires an audio gain adjustment and I lose S-meter calibration. Detailed data... FL2 FL3 (Rx Eq. adjusted for flat response) LSB 2.8Khz 2.7KHz [EMAIL PROTECTED] KHz -64 dB -62 dB Slope -1.7 dB/Khz 0 dB/KHz Saddle -4 dB 0 dB FL2 FL3 USB 2.8 KHz 2.7 KHz [EMAIL PROTECTED] KHz -72 dB -64 dB Slope 5.3 dB/KHz 1.7 dB/KHz Saddle -6 dB -3 dB Saddle is defined as middle of spectrum maximum drop in level from the high points somewhere in the spectrum. The data usually looked like a saddle except for when it was flat. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 FM Operation ???
I don't recall anyone saying they bought a K3 JUST TO RUN FM. But the great thing about this hobby is that there are so many different ways to enjoy it. Some people may choose to work only CW. Others get their fun trying all the modes available to them. The great thing about the K3 is that it allows you to do whatever you are interested in with no compromise. The K3 is the finest radio I have used for HF FM. Those that I have used in the past relied on a second IF ceramic filter for their FM selectivity, so if there was a strong station on one frequency it would spoil reception of another 10KHz away. During sporadic E openings when stations tend to be either strong or gone, it was often a mess. With the K3 and its dedicated crystal filter in the first IF every station came through crystal clear with no adjacent channel interference. The great audio reports just added to the enjoyment. - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/K3-FM-Operation-tp17457370p17461718.html Sent from the Elecraft mailing list archive at Nabble.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] K3 10M Birdie
What's the big deal with birdies? Perhaps if you are operating from the middle of nowhere miles from the nearest computer the bands are actually quiet unless a real signal is present. Here there are so many unmodulated carriers and other noises from computers, computer peripherals, cordless phones, TV set top boxes, burglar alarms and goodness knows what else that you just get used to them. If some of them were actually generated from within the K3 I would never know. - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/K3-10M-Birdie-tp17458757p17461803.html Sent from the Elecraft mailing list archive at Nabble.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] K3 10M Birdie
I do! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of G4ILO Sent: Sunday, May 25, 2008 22:06 To: elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 10M Birdie What's the big deal with birdies? Perhaps if you are operating from the middle of nowhere miles from the nearest computer the bands are actually quiet unless a real signal is present. Here there are so many unmodulated carriers and other noises from computers, computer peripherals, cordless phones, TV set top boxes, burglar alarms and goodness knows what else that you just get used to them. If some of them were actually generated from within the K3 I would never know. - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf -- View this message in context: http://www.nabble.com/K3-10M-Birdie-tp17458757p17461803.html Sent from the Elecraft mailing list archive at Nabble.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 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] #911 built
Dick, I found the manual to be very clear. I'm really an analog guy. I am a slow learner and fast forgetter with a lot of digital devices. My Yaesu VHF HT drives me CRAZY. On the other hand, I've had FUN learning to use the K3, so I can only speak well of the manual. The manual works for me but it assumes the reader has a background in CW/SSB transceiver concepts. My previous HF transceiver is 30 years old. I was almost completely inactive in the field for 20 years. Yet I understand all except the more arcane parameters I've read in the manual and actually enjoy configuring and experimenting. The concepts you need in order to understand the K3 manual are of a general variety that you can learn from ARRL publications etc. This is my view, and hopefully some useful advice -- NOT criticism! Windy KM5Q K3 #764 My only gripe is with the owner's manual. I have never used a software defined rig before, and I found the description of the various menu and config choices fairly baffling. ... ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 10M Birdie
Hi, No big deal, it just gets in the way occasionally, just like a similarly placed offering in the K2, albeit that one has a different source. For what it's worth, I've been working signals on 10M this weekend somewhat lower in strength than this particular birdie. No band noise at all when plugging the antenna in. If you use WSJT on 6M you will even find 'em -25dB, one cost me a completion on EME, mainly due to operator error on my part and I wouldn't expect Elecraft to try and sort sub noise level signals out. So yes, some of us routinely work at very low receive signal levels in reasonably quiet locations, even on HF. You just have to remind yourself why the other guy can't hear you. Regards, Mike VP8NO - Original Message - From: G4ILO [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, May 25, 2008 4:05 PM Subject: RE: [Elecraft] K3 10M Birdie | What's the big deal with birdies? Perhaps if you are operating from the | middle of nowhere miles from the nearest computer the bands are actually | quiet unless a real signal is present. Here there are so many unmodulated | carriers and other noises from computers, computer peripherals, cordless | phones, TV set top boxes, burglar alarms and goodness knows what else that | you just get used to them. If some of them were actually generated from | within the K3 I would never know. ___ 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] Using the V6.2 lite Softrock Rx as a panadaptor with Elecraft K3
Hi Jerry, Since the KB9YIG 6.2 lite is no longer available, a super deluxe replacement designed specifically for the K3 is available. Of course I talking about Larry's (N8LP) LP-PAN Software Defined IQ Panadapter. He is taking orders at his web site http://www.telepostinc.com/LP-PAN.html and has just released the PRELIMINARY Manual http://www.telepostinc.com/LP-PAN-Manual.pdf. I totally agree with your comments regarding the panadapter display resolution provided by PowerSDR. I own a Icom 7800 and the PowerSDR display is far, far superior. I can easily see signals at the noise level and the detail is so sharp I can often tell the modulation being used. Coupled with Larry's free LP-Bridge software (available soon) or Ham Radio Deluxe and you have full point and click frequency control of the K3 (not to mention that PowerSDR has it's own SDR receivers which can be used to simultaneously listen to two inband frequencies at once. It's a very powerful addition to the K3. Just passing along info to K3 users who may be interested in adding a computer supported panadapter to their K3. 73, Frank - W6NEK - Original Message - From: Jerry Flanders [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Sunday, May 25, 2008 12:39 PM Subject: [Elecraft] Using the V6.2 lite Softrock Rx as a panadaptor with Elecraft K3 As a panadaptor for my Elecraft K3, I have one of KB9YIG's 6.2 lite SR40 receivers with the special IF for the K3 (32764 KHz crystal). This gives the SR40 a LO freq of 8191, 24 Khz below the 8215 IF of the K3. I routinely watch a panorama of about +/- 12 Khz on the PowerSDR display (using 96 KHz samping). I was watching +/- 24 KHz initially but my power supply gave me a weak constant waterfall birdie that I haven't eliminated yet. I also have one of Jack Smith's Z-1U buffer amplifiers (Clifton Laboratories) running between the K3's KXV3 output and the SR40 for isolation. (I didn't test to see if the isolation is really needed - maybe not, since the LO is offset 24 KHz.) The above combination is giving me the best panadaptor I have ever used, and I have been using them since Heathkit made one for the Heathkit SB303 in the early '70's. The current ICOM receivers have panadaptors, but the resolution is lacking. With KB9YIG's SR40 rx and PowerSDR, I can even identify the various signal types on sight. I am using the version of PowerSDR that has simultaneous waterfall and panorama. I have PowerSDR calibrated so that the display gives an S9 reading when the K3 sees a 50uV S9 signal from my XG-2 generator. Sensitivity is amazing - I can see signals on the waterfall well down into the noise level. As an indication of what is possible software-wise with the Panadaptor add-on, I am able to run PowerSDR and Skimmer (or Rocky, just as well) simultaneously here on a Sempron 2 GHz 1GB machine, along with Writelog with RTTYRITE in CW mode as well as CWGET all simultaneously. PSDR and Skimmer are both using the same two input channels of my Delta-44, and Skimmer sees the entire I/Q IF range, not just the audio. No audio routing tricks or Y cables are needed. The remainder are using the on-board VIA AC97 sound card. Total CPU usage ranges 50 - 70% with all running or around 20-40% with PowerSDR but without Skimmer/Rocky. The computer also generates CW and I have not seen any CW keying hiccups so far in limited SP yesterday in the contest even at 70% CPU. This machine does not use on-board video, which might slow it further - it has a dual-monitor AGP video card. This is a simple panadaptor setup - I view only and have no K3 control or click tuning from PowerSDR or Rocky/Skimmer. FYI, it is often possible to run multiple apps on the same sound card - I once had 8-10 copies of MMTTY running on a VIA AC97 on-board sound card under XP home as a test to see if multiple simultaneous RTTY profiles worked. Each copy only added about 2% to the CPU load. Note: I understand KB9YIG has retired this particular kit, but a replacement may be available in the future (see [EMAIL PROTECTED] ). Jerry W4UK ___ 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] USB on all bands ??
One time I heard a guy on 20m using LSB. I switched my rig over to LSB, and we had a nice QSO. During the QSO, it turned out that he had attended Ohio State University. Well, seeing as how I live in Ann Arbor, MI (home of the University of MIchigan), I had a good chuckle at his expense over his use of LSB. Fortunately, no one reprimanded us for using the wrong sideband. 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 May 25, 2008, at 2:53 PM, Ron D'Eau Claire wrote: Try a CQ on the other sideband. Sure, most ops won't copy but those who will might produce an interesting QSO. ___ 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 Filter Characterization using Spectrum lab
On my K3, the differences are negligible. I've checked with Spectrum Lab using 2.8 KHz, 6 KHz and 400 Hz filters (all 8 pole). There is a slight roll off from around 500 Hz down to 100 Hz or so. This can be flattened by boosting the lower frequencies with the RX equaliser by about + 2dB. USB and LSB look the same and there is no significant difference when the bandwidth is increased beyond 2.8 KHz using the 6 KHz filter. Audibly there is little difference between USB/LSB or CW/CW reverse. 73 Dave, G4AON K3/100 #80 firmware 1.96/1.73 -- I have noticed significant and unpleasant audio filter spectrum shape differences by ear when I change filter bandwidths as well as change from LSB to USB or CW to CW reverse. This is not an issue at CW filter bandwidths but can be annoying at phone bandwidths using the 6 KHz filter. When LSB is equalized for a flat pass band (minor tweaks), USB audio is highly skewed at high frequencies. Level at 2.7 KHz is 14dB above the level at 500 Hz in USB. SNIP Mike Scott - AE6WA ___ 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] (no subject)
K3/10 no options 2.7khz filter in new condition with latest firmware, power cord, manuals, shipped Continental United States only prepaid. $1650. thanks Warren _ E-mail for the greater good. Join the i’m Initiative from Microsoft. http://im.live.com/Messenger/IM/Join/Default.aspx?source=EML_WL_ GreaterGood___ 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] USB on all bands ??
On 5/25/2008 11:53 AM, Ron D'Eau Claire wrote: Try a CQ on the other sideband. Sure, most ops won't copy but those who will might produce an interesting QSO. If they have an Elecraft rig, it won't matter, since it covers both sidebands. IIRC the Hallicrafters rigs that I used 45 years ago - SX101A receiver, HT-44B transmitter - had capability for operation on either sideband as well as AM and CW. -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ___ 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] Elecraft CW Net - 20 meter cancel
Hi Folks, I cannot find a frequency between 14030 and 14070 kHz for the 20 meter net. So, I am going to cancel ECN/20 for today. I'll be on the air later for ECN/40 though. More accurately, I will be on the air to run the net later. Now I am going to see who I can work in the contest :) 73, Kevin. KD5ONS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft CW Net Announcement
Hello, Anyone hear the ECN in all the CW signals? 72 and Thanks, Ron Polityka WB3AAL www.wb3aal.com www.n3epa.org/ K1 - SN 01011 K2 - SN 01392 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft CW Net - 20 meter cancel
There is my answer. Thanks for the update Kevin. Will try 40m net later. 72 and Thanks, Ron Polityka WB3AAL www.wb3aal.com www.n3epa.org/ K1 - SN 01011 K2 - SN 01392 - Original Message - From: Kevin Rock [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, May 25, 2008 6:58 PM Subject: [Elecraft] Elecraft CW Net - 20 meter cancel Hi Folks, I cannot find a frequency between 14030 and 14070 kHz for the 20 meter net. So, I am going to cancel ECN/20 for today. I'll be on the air later for ECN/40 though. More accurately, I will be on the air to run the net later. Now I am going to see who I can work in the contest :) 73, Kevin. KD5ONS ___ 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] OT: We're on Mars!!
Phoenix has landed! Excited in Mt Vernon (KK7P) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: We're on Mars!!
Bartender, I'll have one of whatever he had... :-) Lyle Johnson wrote: Phoenix has landed! Excited in Mt Vernon (KK7P) Seriously, that's so great to see. NASA was giving just 50-50 odds of a successful landing. The next step could be as exciting, depending on what it finds. Mike ab3ap ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT: We're on Mars!!
Heck of a postage on that QSL card..wonder if they are on LOTW..waitthat doesn't work either, LOM? Dave Wilburn K4DGW K2/100 - S/N 5982 K3/100 - S/N 766 For those who fought for it, freedom has a flavor the protected will never know. Mike Markowski wrote: Bartender, I'll have one of whatever he had... :-) Lyle Johnson wrote: Phoenix has landed! Excited in Mt Vernon (KK7P) Seriously, that's so great to see. NASA was giving just 50-50 odds of a successful landing. The next step could be as exciting, depending on what it finds. Mike ab3ap ___ 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] K3 10M Birdie
I have it too. It's a clean carrier, too weak to indicate on the S meter. Windy KM5Q #764 ___ 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 Low Power FM
Here is an update on my low power out on fm. With all filter in place and with several checks on configuration and reloading the radio's firmware I had no success in getting out any more then 2 watts out max on FM. I removed the FM filter and replaced it with a .001 UF capacitor. I was successful in putting out any amount of power I selected on FM. I monitored the transmittion and it produces a very clean FM signal. So either there is something wrong with the filter or RF Board. Any comments (constructive please). Thanks 73 Dave KD1NA ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft Digest, Vol 49, Issue 52
I think that you have the answer to the riddle Ian. 9 megacycle filters were not available until about 1960 with the second generation of transceivers. By the time of Galaxy 3 and 5, NCX-5, Swan 350, etc the need for the USB/LSB selection was passed, but we stayed with the tradition. I have seen some remarks that would indicate that the Elecraft is unique in being able to select the sideband, but I have not had a transceiver that would not. Even back to the Hammarlund HX-50, if I remember correctly one could select the sideband. I know on the two transceivers I have in the shack, Kwd TS-850 and Yaesu FT-900 when you select SSB it puts you on the preferred sideband, but if you press the button again it puts you on the other sideband. Cookie, K5EWJ --- Ian White GM3SEK [EMAIL PROTECTED] wrote: WILLIS COOKE wrote: It does not give the same sideband on 80 and 20. You also have to consider that the rotation of the tuning capacitor of the VFO turns the opposite direction for 20 as it does for 80. The direction of tuning is not what inverts the sideband. The only thing that inverts the sideband is if the SSB frequency is subtracted in the mixing process. So: 9MHz USB + 5MHz VFO = 14MHz USB 9MHz USB - 5MHz VFO = 4MHz USB - sideband is not inverted. But in Norgaard's 'New Approach to SBB Generation' in QST, June 1948, the SSB is generated on 5MHz and the VFO is around 9MHz, so: 9MHz VFO + 5MHz USB = 14MHz USB 9MHz VFO minus 5MHz USB = 4MHz **LSB** - now the sideband is inverted. If anyone is still in doubt about this, words aren't going to help any more. Please take a few minutes with a pencil and a calculator, punch in some numbers and verify it for yourself. -- 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek ___ 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 Willis 'Cookie' Cooke K5EWJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Low Power FM
With all filter in place and with several checks on configuration and reloading the radio's firmware I had no success in getting out any more then 2 watts out max on FM. I removed the FM filter and replaced it with a .001 UF capacitor. I was successful in putting out any amount of power I selected on FM. I monitored the transmittion and it produces a very clean FM signal. So either there is something wrong with the filter or RF Board. Any comments (constructive please). 1) Move an SSB filter to position #1 and see if Tx/Rx is nominal. This will tell you if the RF board is OK. 2) If it is, put the SSB filter back and re-install the FM filter. 3) If you have a sig gen or source of very stable amplitude signal, turn AGC off and use the AFV function and record the level in SSB mode coming through the SSB filter. Signal needs to have a good S/N but not be more than S9+5 or so to be sure hardware AGC doesn't interfere with the measurement. 4) advance to the dBV position on the VFO B display and you'll see it bobbling around +/- 0.1 or 0.2 dB. 5) Enable the FM filter for SSB and then tap XFIL to switch to the FM filter. You'll then see the relative attenuation of that filter vs your SSB filter. In my case, the 2.8kHz, 6.0 kHz and 13.0 kHz filters are all within a tiny fraction of a dB of each other at an audio pitch of several hundred Hz and a good S/N . Sig Gen was at -80 dBm, or 22 uV. --- The AFV and dBV function of the K3 makes it possible to do some pretty accurate measurements. You can determine MDS, see filter attenuation and be sure your filter configuration loss compensation values are in fact correct instead of guessing, etc. 73, Lyle KK7P ___ 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] USB on all bands ??
All my Drake rigs, T-4X(B,C) and TR-4C along with the R-4(ABC) work both side bands on all bands. My Swan 240 doesn't, but it was a bare bones rig when new. It covers 80 40 on lower and 20 on upper. They all use the 5 and 9 MC system. Kurt W7QHD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FS: K3
K3/10 with KBPF3 General Coverage RX Filter Module, 2.7khz filter in new condition with latest firmware, power cord, manuals, shipped Continental United States only prepaid. $1750. thanks Warren _ Change the world with e-mail. Join the i’m Initiative from Microsoft. http://im.live.com/Messenger/IM/Join/Default.aspx?source=EML_WL_ChangeWorld___ 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] FS: K3
5 hours passes and the price goes up a hundred bucks...better jump quick, guys! Warren wrote: K3/10 with KBPF3 General Coverage RX Filter Module, 2.7khz filter in new condition with latest firmware, power cord, manuals, shipped Continental United States only prepaid. $1750. thanks Warren _ Change the world with e-mail. Join the i’m Initiative from Microsoft. http://im.live.com/Messenger/IM/Join/Default.aspx?source=EML_WL_ChangeWorld___ 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] Elecraft CW Net Report for May 26th, 2008
Good Evening, The twenty meter net got scrubbed due to so much activity on the band. But I did get some interesting DX while waiting for the contest to end. Then came dinner for the two cats and me. Just completed the second net where noise was rising higher and higher. As I went outside I think I may have found part of the cause. I can see across the front yard but just barely. It is one of those days where if I walk too fast I would get soaked. No, it is not fog. I live high enough so I could drive out of the clouds if I went to town. Pretty soon the Doug fir will start watering themselves; that is why they grow like weeds up here. One of the ones I am cutting and splitting has some 1/2 inch growth rings. I thought only the alder grew that fast but lucky fir trees, with good nutrients and light, well spaced from the others grow rapidly. This tree is about 34 inches DBH with approximately 40 growth rings. It was one which just missed the house. I think the heavy mist is causing my antenna to become somewhat shorted to ground. Earlier, during CQ WPX, today twenty meters was open and quiet. Yesterday during CQ WPX both 40 and 80 meters were open and quiet. But it was not so warm nor was the mist so heavy. I could see for a mile or so yesterday. Currently visibility is limited to within yards. On to the lists = On 7045.5 kHz at 0200z: W6ZH - Pete - CA - K1 - 553 W0JFR - John - CO - K2 - 4507 K6PJV - Dale - CA - K2 - 5345QNI #70!!! W0CZ - Ken - ND - K3 - 457 AE6GW - Jack - CA KI6WX - John - CA - K3 - 006 QNI #15!! AD6JQ - Lee - CA N0AR - Scott - MN - K2 - 4866 Hopefully next week we can have both nets. I believe twenty meters is working so I would like to use it for ECN/20. The contest was alright but not nearly as much fun as ECN :) I can't seem to work more than ten stations without finding something else to do. Maybe contesting is just not in my nature; though working Serbia did feel nice. I'll keep trying and see if something inspires me. I did like 7QP - a lot - so there may be hope for me :) Until next week stay well, 73, Kevin. KD5ONS (Net Control Operator 5th Class) ___ 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: RE: FS: K3
Sorry about the previous post. I forgot to put in a subject line and didn't list the general bandpass filter module.. thanks Warren _ E-mail for the greater good. Join the i’m Initiative from Microsoft. http://im.live.com/Messenger/IM/Join/Default.aspx?source=EML_WL_ GreaterGood___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Low Power FM
At 10:23 PM 5/25/2008, Lyle Johnson wrote: snip The AFV and dBV function of the K3 makes it possible to do some pretty accurate measurements. You can determine MDS, see filter attenuation and be sure your filter configuration loss compensation values are in fact correct instead of guessing, etc. I guess I had better start reading the manuals. Which one tells me how to do the above? Jerry W4UK ___ 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 CW data mode
I am a complete data-mode neophyte. I have Ham Radio Deluxe v.4.0 and DM780 v.4.0. I am enjoying being able to decode PSK31 and CW. Receiving is working well. I tried to send CW from the keyboard (DM780 using HRD for PTT) and got the PTT to work but no CW RF signals out. I am using a serial interface. I read about keying interfaces but with all of the advances in the K3 why can't I key CW over the serial interface? Is this a feature I haven't learned how to operate or is it a feature that belongs on the list? Maybe it isn't possible for some physics reason. The world of data modes is very radio and interface specific. Where can I learn exactly what I need to do with a K3 and HRD/DM780? I subscribe to the HRD reflector but the K3 is a different beast and that site is for every radio on the planet. I need hand holding specific to a K3, step by step without anyone thinking I know what they are talking about. Is there a resource? Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Low Power FM
Jerry Flanders wrote: At 10:23 PM 5/25/2008, Lyle Johnson wrote: snip The AFV and dBV function of the K3 makes it possible to do some pretty accurate measurements. You can determine MDS, see filter attenuation and be sure your filter configuration loss compensation values are in fact correct instead of guessing, etc. I guess I had better start reading the manuals. Which one tells me how to do the above? VFO B Alternate Displays is a topic on page 34 of the Owner's Manual. Not much info there. Basically, you operate it as I described: get your reference, in AFV, then switch to dBV. If AGC is off, you'll get absolute relationships as long as the hardware AGC is not activated. On the other hand, with AGC on you can determine what the AGC SLP (slope) control does, etc. It's pretty much up to your imagination... 73, Lyle KK7P ___ 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
