Re: [Elecraft] K3 and phase noise
Hi Eric Do you have any transmitter IMD numbers yet? Craig VK3HE --- Eric Swartz - WA6HHQ, Elecraft [EMAIL PROTECTED] wrote: Hi Bill, The reference on-channel signal for past ARRL BDR testing has typically been set between -110 and -80 dBm, well above the MDS. te interfering signal generator is increased until this signal drops by a dB due to compression. This on frequency signal dominates the in-band RMS audio voltage. The noise floor needs to raise a lot before it dominates that signal. Also, even on the Orion, their BDR is well above their phase noise at any spacing. For the Orion II, the ARRL numbers are: 2kHz 20kHz Phase Noise-129 -125 BDR 136 136 Neither of their BDRs were noise limited. For the particular K3 I tested the phase noise on below, I measured a typical BDR of 140-141dB at spacings 5 kHz and wider and about 138dB at 2 kHz. On another note, as I mentioned in my email, the ARRL has refined a number of their test methods. They are now making the dynamic range measurements by measuring the on frequency IMD spur or blocked signal using a narrow band spectrum analyzer. This separates the blocking or IMD measurement from reciprocal mixing, which they will do as an additional test. See page 71 of the May 2006 QST for details. 73, Eric WA6HHQ - Bill Tippett wrote: WA6HHQ: Rig 1kHz2 10 20 50 100 1M K3 -110 -119 -136 -140 -143 -144 -150 I'm now wondering how you measured 143 dB BDR at 2 kHz in the presence of 119 dB Phase Noise? Shouldn't the measurement have been phase noise limited? 73, Bill W4ZV ___ 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 Be a better Heartthrob. Get better relationship answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=listsid=396545433 ___ 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] solution to sliding paddles
Thank you Chris, from Amazon.co.uk : http://www.amazon.co.uk/Grip-Liner-Multi-Purpose-150cm-30cm/dp/B000V1QPY8/re f=sr_1_23/026-5812468-6916424?ie=UTF8s=home-gardenqid=1190361451sr=1-23 (Grip Liner in Home Garden) On 20/9/07 18:36, Chris Kantarjiev [EMAIL PROTECTED] sent: Anyone in the UK know where this stuff can be bought over here? Amazon.com sells it: http://www.amazon.com/Griptex-Wonderliner-240-Inch-Standard-White/dp/B000H7VGT K/ref=pd_bbs_sr_1/002-3444193-2826424?ie=UTF8s=home-gardenqid=1190309731sr= 8-1 -- Being a System Administrator is like being a plumber. If you do a good job, nobody knows. If you screw up, everybody gets covered in s**t! ___ 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 quick-start file modified for accurate printing
wayne burdick wrote: We turned all of the drawings in the quick-start guide into JPEGs to JPEG and drawing generally don't go together, and, in spite of a few gradients in this case, I think it is true here. Moreover, the actual PDF file has the equivalent of PNG's (FlateDecode) embedded. If you did produce a JPEG intermediate, that can be about the worst thing for file size. PDF is capable of storing files in formats very close to JPEG, GIF and PNG (DCT, LZW and Flate). Both Distiller (Adobe) and ghostscript (GPLed) can generate PDFs with DCT encoding, but it looks like you are using another third party PDF encoder, and maybe it doesn't have good bitmap image support. (It's not quite as bad as doing circuit diagrams as JPEGs.) eliminate problems with PICT file interpretation by Acrobat on That's unfortunate, as it is one of strengths of PDF that it is a vector format (it annoys me when people embed simple research graphs in bitmape form, losing detail in the legend, when the format could handle a fully scalable image). different systems. Unfortunately this makes the file a lot larger (3 megabytes), but it should now look very good when printed. Rendering direct from PICT to PNG is likely to produce the smallest file. It might be worth experimenting with palletised versus full colour. There are tradeoffs in compression either way. -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ Elecraft mailing list 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: Hexkey waiting on bench, due to warning
They sell at Wal-Mart, for use in RV's to keep things from sliding around. Tones of uses around the house. I had one under my HexKey until a recent trip. Now will have to track down that roll again and get another piece David Wilburn [EMAIL PROTECTED] K4DGW K2 #5982 FP#-1751 [EMAIL PROTECTED] wrote: I got a small swatch of a rubberized waffle like padding - you can see through the mesh like a screen - and it stops the 'scoot' really great. I've had it so long that I can't remember where it came from, and I'm not even sure it was intended for use with a key. The one I have is blue, quite thin, and very soft. If anyone knows where it comes from or it's original intended use, I think it would be a boon to all cw ops. I used a bencher before my hexkey and before that it was a homebrew. The tendency has been to make the key heavier to reduce the scoot from an intense contester or pileup op whose a little excited. But that doesn't stop it unless the feet are soft and a little 'sticky' on the surface. soft rubber legs stick but flex and the hard rubber doesn't flex but it scoots - what a dilemma! That pad I found is the best of both worlds - it even works if the feet are hard plastic buttons. For the hexkey - get the pad and some nylon feet - no jiggle and no scoot. Al WA6VNN ** See what's new at http://www.aol.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] transvertor mode question
Hello again, thanks for Phase noise data and discussion. What I am now looking for are some other informations important for using K3 as I/F for serious VHF/UHF/SHF contesting/DXing. First question is about display readout in transvertor mode - is there possible some offset - for example 144 000.00 is on 28 001.15 ? Second question - maybe more general - is about TX possibilities outside standard HAM Bands. For example if my 2m transvertor is built for 26MHz (26MHz/144MHz instead of stadard 28/144). The reason is that the rest of line (transvertors from 1296MHz up) are built to use I/F 145, 146 and 147MHz - normally when 144 is on 28 there is no way to use 31MHz on standard gears, but with some mods is possible to use any lower frq. up to 30MHz. Thanks for any info or link to such info, 73! Lexa, ok1dst ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Fwd: K3 and phase noise
On 9/21/07, Bill Tippett [EMAIL PROTECTED] wrote: Not to worry...I'm going to set up a company to sell phase noise offsets to non-K3 users. :-) Any discounts being offered to those of us who live in the first hop zone of Eu 40m BC stations, and who use 7130 - 7200 kHz? Number of stations : Too many. Carrier levels : Can reach -10 / -5dbm at Rx. BC Tx Phase Noise : At times a problem. Modulation : Enthusiastic with pop music especially, another problem. 73, Geoff GM4ESD ___ 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: K3 [Elecraft] transvertor mode question
Hallo, Second question - maybe more general - is about TX possibilities outside standard HAM Bands. For example if my 2m transvertor is built for 26MHz (26MHz/144MHz instead of stadard 28/144). I've also asked, a long time ago, about using non-standard IFs for transverters with the K3; my suggestion being somewhere between 30 and 50MHz. I never really got an answer and I wonder if the VFO in the K3 could handle low VHF IFs. For RX I do not think that 26MHz should be a problem but for TX it very well may be, because AFAIK there are legal and moral issues with K3 transmit capability in the CB (and so called Free Band) frequency range. I feel that allowing low power IFs outside of the HF bands with the transverter interface is a very good idea, e.g. an IF of 30 to 40 MHz would not conflict with a 10m station at the same QTH and is wide enough for the entire 70cm band in Europe. vy 73 de toby ___ 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 and QSK
I read the new K3 Quickstart Guide and noticed that with QSK button, I believe that you can only select SEMI or FULL, but no OFF. Why would I want an OFF function? I got in the habit of switching the breakin on my radio to OFF when it is unattended for a couple of reasons. One, I usually have a computer connected for CW keying and who knows if it will reboot or hangup. When my computer reboots, it usually has the LPT port in the wrong state and continuously keys the radio. The other reason is from the old movie, On The Beach. From Wikipedia: The story is set in 1964, what was then the near future (1963 in the book) in the months following World War III. The conflict has devastated the northern hemisphere, polluting the atmosphere with nuclear fallout and killing all life. [...] From Australia, survivors detect a mysterious and incomprehensible Morse code radio signal originating from the United States. With hope that some life has remained in the contaminated regions, one of the last American nuclear submarines, the USS Sawfish, placed by its captain under Australian naval command, is ordered to sail north from its port of refuge in Melbourne (Australia's southernmost major mainland city) to try to contact whoever is sending the signal. [...] The Sawfish then travels to an abandoned naval installation in San Diego (in the book, it is located near Seattle), where they discover that, although the city's residents have long since perished from radiation poisoning, the Naval base's hydroelectric power is still on-line. The ship's communications officer is sent ashore in a radiation suit to investigate. The mysterious signal is the result of a Coca-cola bottle being nudged by a window shade teetering in the breeze and occasionally hitting a telegraph key. One of the first movies with commercial product placement! Seriously, I always thought that it was good practice and habit to disable the transmitter when not in the room. Even in the room, sometimes it is a good idea. The other day I was listening on the band and had the VOX on. The headset was on the table with the mike connected, but I had the speaker on to just listen as I was doing something else. I sneezed and tripped the VOX. I chuckled when someone, somewhere said Bless you over the air! ___ 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 VCO Alignment
Hi Everyone, When I could not get the VCO to lock despite changing the number of turns on the red winding of T5, I got discouraged, and left the assembly of my K2 in abeyance for a couple of years. However, recently I resumed work on it. I started checking voltages and found that line 4V was locked on 8.004 volts. Today I removed the thermistor board from the RF board and found a fault on it. The solder connection to one of the resistors looked fine, but it was not making electrical connection with the end of the resistor. The problem has now been rectified and the board re-installed. The voltage at 4V is now 4.0 volts. The VCO is still not locking, probably because the T5 red winding still has 17 turns on it from earlier attempts to solve the problem. Tomorrow, I will carefully read Gary Surrency's email to me, perform his suggested checks, and then remove one winding from T5 and see how I then get on with the VCO locking. 73 Kevin VK3DAP / ZL2DAP ___ 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 RX Audio
Tree wrote: http://www.kkn.net/~tree/160/3b7cQSO.mp3 MP3 is probably not a good choice for critical evaluation of the audio of a DSP based system, as it involves heavy additional DSP to produce it. In particular, MP3 works by limiting close in dynamic range (because the ear cannot hear weaker sounds close to a strong one), so weak signals which are close to strong ones will be reproduced with worse resolution, or lost. (It's a bit more complex than that as it is done on frequency blocks.) It's also a block based encoder and, although I'm not sure, it is possible that it loses phase information and fakes wideband noise. (I presume it must retain low frequency phase information, for stereo to work, but I don't know if it encodes I and Q in all frequency bands or whether it falls back to just power at the higher ones.) Even if it retains phase, I wouldn't expect it to reproduce multi-tone or, in particular, noise like digital modes well, and if you can hear subtle DSP artefacts in the K3 you can probably hear those resulting from MP3 encoding. Unfortunately, doing an extra A to D / D to A pair is inevitable, given there is no digital output, but it needs to be done at a carefully chosen sample rate. -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ Elecraft mailing list 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 in the marketplace
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Charles Harpole Elecraft designers had K2-its thinking they were mostly evolving a K2 Big mistake as I said in an earler message The K3 has jumped Elecraft into the areana of the ORION 2, FT-9000 and IC-7800 and great specs are great, but the human factor... so often ignored by purist engineers... is left out. This means they can still be beaten in the marketplace when their specs indicate they should be the only hi end rig of choice. I didn't quite follow you here Charles. What human factor item is the K3 missing that will limit it in the marketplace? Maybe it isn't flashy enough? - Keith N1AS - - K2 5411.ssb.100 - ___ 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 VCO Alignment
Hi Everyone, Success at last!! I could not wait until tomorrow to adjust T5. I checked everything in the advice received from Gary Surrency, removed the 17th turn on the red winding of T5, and then found the locking voltage could be adjusted by L30 at 4.000 MHz. I have noted the voltage at each band end and they are all within the specification. 73 Kevin VK3DAP / ZL2DAP ___ 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 in the marketplace
Exactly. Human factor=Flashy knobs. How else could you impress a shack visitor if your radio had precious few knobs? Big seller for off shore rigs..panel full of knobs the majority of which one never touches after that first day when the radio arrived and there was lots to play with. Contesting or rag chewing, there's not all that many knobs one needs to turn, so where's the beef? My buddy Charles, who I met at VU4, I say go ahead with Orion II. de Joe, aa4nn I didn't quite follow you here Charles. What human factor item is the K3 missing that will limit it in the marketplace? Maybe it isn't flashy enough? ___ 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 in the marketplace
FINALLY, something negative about the K3. Sounds odd, but I'm glad to hear it. My fear is that this rig will be so good and so desirable that demand will far outstrip supply for some time leading to shortages (I won't be able to get one) and the possibility of lower quality due to growing pains and Elecraft and rushed production. Having never touched one, I'd agree that a 2.5 VFO knob would have been a better choice than 1.5. Direct access to bands and modes (and filter selections) are some very nice things to have as well. One of the things I loved about my Omni V was that you had individual buttons for these things and they had LEDs to show you which one was selected. But my K2 has all of these limitations as well. Despite the fact that I'd like to have them fixed, they are not enough of an issue for me to step away from the K2 in favor of any other rig. The K2 just works to nicely despite the few human factors issues. It looks to me like there is room on the K3 for a bit bigger knob on both VFOs. Certainly not 1/2 bigger, but maybe 20% bigger. If K3 sales are high enough, maybe there will be an aftermarket knob for the rig? It will be interesting to watch the whole thing unfold! 73! - Keith N1AS - - K2 5411.ssb.100 - -Original Message- From: Joe Subich, W4TV [mailto:[EMAIL PROTECTED] There two human factors items that have been cited several times: 1) the knobs are perceived to be too small. The current 1.5 and 1.0 (approx) are believed to be too small. 2) The lack of a set of direct access band and mode select keys. ___ 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 and QSK
In many rigs the VOX control will perform the OFF function you're looking for. With VOX off you'll need to push a Transmit button or supply an external PTT signal to activate the transmitter. I haven't read the manual yet but I bet the K3 works the same way. OFF is a very good idea when you're out of the shack. A couple years ago there was a ditter who was tracked down and found to be a ham with a misadjusted key that was sending out a steady stream of dits while he was out of the shack unawares. He was duly mortified when the DFers showed up at his front door. Also a good idea if you have cats. -- Carl WS7L ___ 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: K3 [Elecraft] transvertor mode question
Ahoj Lexa, I do not believe that there is many such requests for having ... I agree with you that most standard rigs will not go above 30MHz and often do better on 14MHz or 21MHz than they do on 28MHz. I would hope that the K3 does show major differences in its performance from band to band. I do think that using low VHF for the IF could make good sense, assuming of course that the IF transceiver does a good job at these frequencies. are after some mods able to go from 1 to 30MHz ... If I remember correctly, Wayne has written in the past that the K3 will not transmit in the CB range and that this blocked by the firmware. The firmware will not be released, i.e. user firmware modifications are not possible. At least not without a lot of reverse engineering. Also I believe that Wayne also wrote that Elecraft will compile different versions of the firmware with feature adjustments depending on the local laws of where the K3 is going to be used. OperationalManual to study - not found on Elecraft Web ? ... I am sure that the manual will be downloadable soon - a fortnight or so? vy 73 de toby ___ 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] dual receive
Being relatively new and not having a rig with two receivers, please forgive stupid question: Once I have my K3 with the KRX3 - working split, listening on the Rx freq in 1 ear and the Tx in the other should be a breeze - right? And to ask 2 questions in 1 here If 3B7C is working on 14.150 (their Tx) and working 5 up (their Rx) What is the correct term for the 14.145 freq and the term for the 14.150 freq? -- Anyone can do any amount of work, provided it isn't the work he is supposed to be doing at that moment. -Robert Benchley ___ 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 and QSK
In many rigs the VOX control will perform the OFF function you're looking for. With VOX off you'll need to push a Transmit button or supply an external PTT signal to activate the transmitter. I haven't read the manual yet but I bet the K3 works the same way. The K3 QSK button has two states: QSK and SEMI-BREAK-IN. Holding the QSK button toggles between these two states. In SEMI-BREAK-IN the delay can be set with the DELAY control. Currently there is no OFF or PTT/footswitch capability in CW. 73, Ed - W0YK ___ 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] Big Knobs Syndrome
I guess hams in general are impressed by a lot of knobs and buttons and lights. I think that if we want to utilize any radio the best way possible we need to forget some of our biases and try to adapt to the features of the radio. This is why many hams derive so much pleasure out of some well designed small qrp rigs. I don't agree with the conclusion that the K3 is a bad radio for the older generation because of small knobs, etc. People who have various disabilities (i.e. blindness) will probably find the K3 to be a delight to operate. You may not be able to push the same type of buttons on a K3 as you would a Yacomwood but if you go with the flow of the radio, you may find that although the radio's interface is different, it may end up being better and more pleasurable to use. It may be like CW, you need to do it for a while in order to enjoy it and appreciate its good points. Also if a smaller VFO knob is designed well it can be nicer to use than a large VFO knob. A long time ago I sent my Sierra to Wayne because he was curious about questions I had about its alignment. I was surprised one Saturady with a call from him concerning the radio. While we were talking I mentioned how I admired his talent for designing radios and regretted not becoming an E.E. instead of becoming a civil engineer. He said not to have that hold me back as he was educated in cognitive science, (I think that's what he said)? Anyway, it didn't really register with me at the time what that meant, until recently.. I just looked it up and it seems he has studied and worked a large part of his life to acquire a skillset that is probably the best preparation to be able to design machine interfaces for human interaction. It seems God knew Wayne was going to be involved with the design of the K3, and that there would be many people asking for the big knobs typical of inferior rigs. So in order to ensure that the K3 was the best out there God told him to go get a degree in Cognitive Science. Then Wayne went on to use his education and talent to design the K3 front panel with features so radically new and friendly that it was destined to redifine the human interaction experience for radio transceivers. People said that the K3 human interface was an order of maginitude better than anything else out there. It met up with some resistance from some of the old school who still wanted their big heavy VFO knobs, but in the long run everyone saw the light and all the other radio companies had to copy the features of the K3 human interface just to stay in business. And so it will be. Just try it, and if you can forget some of your biases for a moment, I bet that you will like it better than any other radio. Steve, W2MY ___ 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 in the marketplace
Hello Craig, For LF work I am using a Wandel Goltermann selective level meter. The tuning knob measures a meagre 22 mm / 0.86 inch. Nevertheless this has never bothered me as the tuning rate adjusts itself to the tuning speed. The tuning speed can be set to a step of either 1 Hz / 100 Hz. With a step of 1 Hz it is easy to have a tuning speed of 10 Hz per revolution. As this unit has a filter of 24 Hz wide, you need this at times. With 100 Hz per step a good swivel of the knob brings you from the start to the other end of the 1650 kHz wide tuning range (200 Hz - 1650 kHz). The tuning of my K2 is a set back in this regard. K2#6177 worked this morning 3B7C on 18 MHz with a 2 x 50 feet doublet as antenna. Never used a rig with split before, but it works like a treat. I have also been measuring the power output for a fixed setting of the power control. T4 has been wound 2:2:1:1 for better efficiency at 5W: Supply voltage was 12.2 V and a 50 ohm dummy load was used. The RF voltage over the dummy load was measured with a 10:1 probe connected to a Tektronix 465B oscilloscope. Bandoutput (W) supply current (A) 1605.11.38 80 5.11.36 40 5.31.46 30 4.81.36 20 5.11.38 17 5.31.38 15 4.81.34 12 5.31.28 10 5.51.40 When we take the mean power as (4.8 + 5.5) / 2 = 5.15, delta max is 0.35 W. I find this quite amazing. Roelof Bakker,pa0rdt Middelburg, Netherlands JO11tm -- Mijn Postvak In wordt beschermd door SPAMfighter. 381 spam-mails zijn er tot op heden geblokkeerd. Download de gratis SPAMfighter via deze link: http://www.spamfighter.com/lnl ___ 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 ATU
Can anyone comment on how robust the internal ATU for the K3 is? Is one better off with an external ATU? I'm not sure what you mean by robust. The KAT3 internal ATU handles the full power of the K3 and matches a wide range of load impedances. It adds little to the weight of the radio, and is fully integrated into the user interface. 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 and QSK
Well...you can set it for full QSK and plug in a footswitch. Then the footswitch will switch the K3 into transmit. Of course, hitting the key without pressing the switch will still cause it to transmit, but you *can* use the footswitch (or PTT output of a computer logging program). This is NOT footswitch-controlled CW! QSK must be off for PTT/footswitch to be useful. 73, Ed - W0YK ___ 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 in the marketplace
Having never touched one, I'd agree that a 2.5 VFO knob would have been a better choice than 1.5. The Main VFO knob is 1.9 (4.8 cm) in diameter, not 1.5 (3.8 cm). I find it every bit as comfortable to use as the VFO knobs on my other base station targeted rigs. 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
[Elecraft] K3 and QSK
This was an issue with the early Orion also. As I understand it, PTT in CW was eventually implemented on the Orion. Some of the contesting software will raise PTT and delay a user specified time before keying to let the T/R switching settle. Also, on all the YaeCOMWood rigs I have used, releasing PTT returns to RX 'instantly' - cancelling any delay set for semi-breakin. Not having a QSK amplifier, and not particularly caring for QSK at all, PTT in CW capability is important to me. I routinely stomp on the foot switch to eliminate the clatter during CW contacts with my ICOM rig - been doing this ever since my DX-35 way to old to change now. PLEASE make PTT active on CW in the K3! PLEASE 73, Bill N2BC ___ 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 and QSK
Ed Muns wrote: Well...you can set it for full QSK and plug in a footswitch. Then the footswitch will switch the K3 into transmit. Of course, hitting the key without pressing the switch will still cause it to transmit, but you *can* use the footswitch (or PTT output of a computer logging program). This is NOT footswitch-controlled CW! QSK must be off for PTT/footswitch to be useful. No, QSK must be off for the paddle to not be live. The PTT/Footswitch works fine with QSK on. I just tried it. Why isn't this useful? -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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 and QSK
Bill Coleman N2BC wrote: This was an issue with the early Orion also. As I understand it, PTT in CW was eventually implemented on the Orion. Some of the contesting software will raise PTT and delay a user specified time before keying to let the T/R switching settle. Also, on all the YaeCOMWood rigs I have used, releasing PTT returns to RX 'instantly' - cancelling any delay set for semi-breakin. Not having a QSK amplifier, and not particularly caring for QSK at all, PTT in CW capability is important to me. I routinely stomp on the foot switch to eliminate the clatter during CW contacts with my ICOM rig - been doing this ever since my DX-35 way to old to change now. PLEASE make PTT active on CW in the K3! PLEASE It is! The way it works now will allow you to do what you describe. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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 and QSK
In both contesting and DX'ing, whether CW or 'phone ... IMO ... a footswitch is the ONLY way to go. The K3 DOES have this capability, doesn't it? 73! Ken Kopp - K0PP [EMAIL PROTECTED] or [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 and QSK
On Fri, Sep 21, 2007 at 04:31:46PM -, Ken Kopp wrote: In both contesting and DX'ing, whether CW or 'phone ... IMO ... a footswitch is the ONLY way to go. The K3 DOES have this capability, doesn't it? Yes. I use it that way all of the time. There is a phono jack input for PTT and a phono jack output for PTT to your amp. Tree ___ 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 and QSK
YES On 21/9/07 17:31, Ken Kopp [EMAIL PROTECTED] sent: In both contesting and DX'ing, whether CW or 'phone ... IMO ... a footswitch is the ONLY way to go. The K3 DOES have this capability, doesn't it? 73! Ken Kopp - K0PP [EMAIL PROTECTED] or [EMAIL PROTECTED] -- Don't look forward to the day you stop suffering, because when it comes you'll know you're dead. -Tennessee Williams ___ 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 and QSK
Vic, Other than those who just like to use a footswitch, CW PTT function (inhibiting the onset of RF) is a requirement with many VHF/UHF stations, and is used as the transceiver steering mechanism for some SO2R stations. I created a CW PTT circuit to add that capability to the K2. I figured the K3 has this already built in. Please verify that it does, and maybe this thread can settle down a bit. My current understanding is that if QSK is set to OFF, the paddles do *not* initiate transmit - the footswitch can start transmit and then the paddles will function. If it does not work that way, please clarify how it does work. 73, Don W3FPR Vic K2VCO wrote: No, QSK must be off for the paddle to not be live. The PTT/Footswitch works fine with QSK on. I just tried it. Why isn't this useful? ___ 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 and QSK
Don Wilhelm wrote: Vic, Other than those who just like to use a footswitch, CW PTT function (inhibiting the onset of RF) is a requirement with many VHF/UHF stations, and is used as the transceiver steering mechanism for some SO2R stations. I created a CW PTT circuit to add that capability to the K2. I figured the K3 has this already built in. Please verify that it does, and maybe this thread can settle down a bit. My current understanding is that if QSK is set to OFF, the paddles do *not* initiate transmit - the footswitch can start transmit and then the paddles will function. If it does not work that way, please clarify how it does work. There is a choice between QSK and semi-QSK. In either case the PTT (footwitch or computer) is active. The paddle or key input, however, is also active. So if it's important to inhibit transmit caused by accidentally hitting the paddle before stepping on the footswitch, you'd need an external circuit to do that (it would be very simple, one transistor or relay). -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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 and QSK
No, QSK must be off for the paddle to not be live. The PTT/Footswitch works fine with QSK on. I just tried it. Why isn't this useful? Because you cannot control transmit with PTT/footswitch. Hitting the paddle puts the rig into transmit. You cannot gate (prohibit) transmit with PTT/footswitch if QSK is still active. Some SO2R control boxes use PTT to enable each transmitter. You may want to insure your amplifier is switched on before RF is applied from the K3. There are lots of other reasons for having this traditional feature. Every radio on the planet has PTT/footswitch control for CW ... except the K2, and now the K3, unless it is added in the firmware. 73, Ed - W0YK ___ 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 and QSK
Let us be clear. There are two questions in this discussion. #1. Can you use external PTT to put the rig in CW transmit mode, bypassing both the full and semi QSK? This has been resoundly answered Yes! #2. Can you arrange for the CW key to be disabled when the foot switch is NOT pressed? I don't believe I've heard this answered clearly. #2 is exceedingly important. This was K1EP's original point when he started this thread. Here's another scenario that shows why: Suppose my foot switch actuates relays that switch between separate Rx and Tx antennas. If I can transmit by accidentally bumping the key, power will go to the receive antenna. Now imagine that I have a receive antenna with an external preamp. Poof! Preamp smoked. I would have to route my key through yet another relay if I could not have Tx disabled with no PTT. 73, Carl WS7L ___ 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 and QSK
My current understanding is that if QSK is set to OFF, the paddles do *not* initiate transmit - the footswitch can start transmit and then the paddles will function. If it does not work that way, please clarify how it does work. No. There are two states for CW on the K3: 1. QSK. 2. Semi-break-in. Transmit is activated when the paddle is closed. Yes, you can put the K3 into transmit with PTT, but you cannot PROHIBIT it from going into transmit by NOT asserting PTT. The paddle is always live. Moreover, you cannot stop transmission by releasing PTT if the paddle or KEY input is still making closures. 73, Ed - W0YK ___ 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 and QSK
I've only done footswitch PTT on phone. Interesting idea to do it on CW. I like the paddle disable concept. So if the footswitch controlled a relay that was inserted between the paddles and the rig, then you could use the footswitch to disable and enable the paddles. The actual TR switching would be done by the QSK circuit. I guess if you wanted to swap antennas from RX to TX or do other things, then there would be more functions tied to the footswitch for antenna switching, amp enabling, whatever. Would this all be taken care of by an external box or does it have to be addressed in the rig? - Keith N1AS - - K2 5411.ssb.100 - ___ 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 and QSK
On Fri, Sep 21, 2007 at 12:58:52PM -0400, Don Wilhelm wrote: Other than those who just like to use a footswitch, CW PTT function (inhibiting the onset of RF) is a requirement with many VHF/UHF stations, and is used as the transceiver steering mechanism for some SO2R stations. I created a CW PTT circuit to add that capability to the K2. I figured the K3 has this already built in. Please verify that it does, and maybe this thread can settle down a bit. This is an important point that I should have made before. We need an option to ignore any input on the paddle input (or CW input) unless PTT is asserted. Tree ___ 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 in the marketplace
Charles said: Elecraft designers had K2-its thinking they were mostly evolving a K2 Big mistake as I said in an earler message This is incorrect. The K3 designers had a clean sheet of paper. As I said in my NCJ article, Not at all an upgraded K2, this is an entirely new radio and a new manufacturing concept. Whereas the K2 is an inexpensive, digitally-controlled, analog radio in kit form, the K3 is a mid-priced, manufactured, digital radio with some interesting analog stages. While the K2 was born out of the QRP movement and later acquired an add-in 100 watt amplifier and DSP, Elecraft is introducing the K3 with a full complement of bells and whistles. Although it is available as a semi-kit – a box of manufactured boards and cabinetry that the purchaser assembles without a soldering iron – the factory-built and -aligned boards assure that every radio will have identical performance and reliability expectations. The K3 has jumped Elecraft into the areana of the ORION 2, FT-9000 and IC-7800 This is correct. and great specs are great, but the human factor... so often ignored by purist engineers... is left out. This is incorrect. Please see my comments on user interface that I posted a few minutes ago in response to another post. Elecraft spent lots of time with cognitive science experts, world-class contesters and dedicated DXers optimizing the user interface and they did an excellent job. The rig excels in human factors. This means they can still be beaten in the marketplace when their specs indicate they should be the only hi end rig of choice. Any product can be beaten in the marketplace despite better specs. Specs aren't the only success factor. Elecraft also excels in support and has the most powerful online user community in the industry, but those do not guarantee success either. Marketing is also important and Elecraft does not have the deep pockets of Yaecomwood. Only time will tell just how successful the K3 becomes. But a lot of very smart, very talented operators and engineers are betting on it. It's going to be a fun ride. 73, /Rick N6XI ___ 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 PA bypass in receive
I've been studying the block diagram of the K3, and have a question about the 100w PA block. There is a bypass relay shown in in the PA I/O block which would provide the receive path. Is this really a relay or some bypass circuit? I wouldn't be happy with a relay flapping away, trying to follow keying. Hate the clicking noise from them. Anybody know? 73, Bob N6WG ___ 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 and QSK
N6TR: This is an important point that I should have made before. We need an option to ignore any input on the paddle input (or CW input) unless PTT is asserted. Amen! Rather than using a Spot button, I send a few dashes from my key to hear my sidetone when zero beating someone. Less effort to move my hand from the paddle to the radio doing it this way. After I'm zero- beat, I use PTT via foot switch to transmit. 73, Bill W4ZV ___ 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 and QSK
While in the CW Mode here is how I would like the K3 to operate: 1. Change the firmware to add a 3rd state (OFF) to the QSK and SEMI-BREAK-IN CW modes. When in the OFF CW Mode hitting the paddle, or key, WILL NOT cause the rig to go into CW Xmit (but you will still hear the sidetone if enabled). 2. When placed in the newly added CW OFF Mode, pressing a footswitch connected to the rear PTT input will allow the paddle or key to go into CW Xmit. That's the way it works on 3 other rigs I have in the shack. I guess I just assumed that the K3 would be set up the same way. Frank - W6NEK - Original Message - From: Carl Clawson [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Friday, September 21, 2007 10:11 AM Subject: RE: [Elecraft] K3 and QSK Let us be clear. There are two questions in this discussion. #1. Can you use external PTT to put the rig in CW transmit mode, bypassing both the full and semi QSK? This has been resoundly answered Yes! #2. Can you arrange for the CW key to be disabled when the foot switch is NOT pressed? I don't believe I've heard this answered clearly. #2 is exceedingly important. This was K1EP's original point when he started this thread. Here's another scenario that shows why: Suppose my foot switch actuates relays that switch between separate Rx and Tx antennas. If I can transmit by accidentally bumping the key, power will go to the receive antenna. Now imagine that I have a receive antenna with an external preamp. Poof! Preamp smoked. I would have to route my key through yet another relay if I could not have Tx disabled with no PTT. 73, Carl WS7L ___ 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] Reading material...
...wondering if there'll be some good reading material posted for our weekend. Regards, Dick - KA5KKT/4 ___ 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 PA bypass in receive
There is a bypass relay shown in in the PA I/O block which would provide the receive path. Is this really a relay or some bypass circuit? There are no T-R relays, Bob. The block diagram is indicating a switching arrangement. Trust me, the T-R switching is not mechanical at QRP or QRO levels! 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 PA bypass in receive
On Fri, Sep 21, 2007 at 10:36:24AM -0700, Robert Tellefsen wrote: I've been studying the block diagram of the K3, and have a question about the 100w PA block. There is a bypass relay shown in in the PA I/O block which would provide the receive path. Is this really a relay or some bypass circuit? I wouldn't be happy with a relay flapping away, trying to follow keying. Hate the clicking noise from them. I can hear that relay click when you go between low and high power. It is NOT clicking with QSK. Tree ___ 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 PA bypass in receive
There is a bypass relay shown in in the PA I/O block which would provide the receive path. Is this really a relay or some bypass circuit? I wouldn't be happy with a relay flapping away, trying to follow keying. Hate the clicking noise from them. T/R switching is done with semiconductors. There are no relays clicking with your keying. 73, Ed - W0YK ___ 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 PA bypass in receive
Thanks, Lyle. I thought that would be the case, but good to have it confirmed. Not ready to operate QRO yet, but when I buy my K3 it will have the 100w PA in it, just in case :-) Thanks and 73 Bob N6WG The Little Station with Attitude - Original Message - From: Lyle Johnson [EMAIL PROTECTED] To: Elecraft Mail List elecraft@mailman.qth.net Sent: Friday, September 21, 2007 10:47 AM Subject: Re: [Elecraft] K3 PA bypass in receive There is a bypass relay shown in in the PA I/O block which would provide the receive path. Is this really a relay or some bypass circuit? There are no T-R relays, Bob. The block diagram is indicating a switching arrangement. Trust me, the T-R switching is not mechanical at QRP or QRO levels! 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 ___ 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 and QSK
The K2 TEST mode inhibits TX in CW, but it doesn't affect SSB or RTTY modes, only CW and TUNE. I see the K3 has a TEST button which in the quickstart is listed under SSB mode as alowing off the air adjustments. I hope it applies to all modes, including CW. For me, an across the board TEST gate makes more sense than saying QSK mode = QRT. Leigh/WA5ZNU On Fri, 21 Sep 2007 10:41 am, W6NEK wrote: While in the CW Mode here is how I would like the K3 to operate: 1. Change the firmware to add a 3rd state (OFF) to the QSK and SEMI-BREAK-IN CW modes. When in the OFF CW Mode hitting the paddle, or key, WILL NOT cause the rig to go into CW Xmit (but you will still hear the sidetone if enabled). ___ 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 and QSK
I too vote for a QSK OFF state to accomplish this -- it seems the most convenient way that I can think of My ICOM 735 uses VOX for this - it becomes KOX in CW mode. But I don't like that very well because when I switch to phone the VOX will be on and I dislike VOX. I guess that using VOX would be OK if the setting were mode-dependent, but on the old rig it's an in/out switch. 73, Carl WS7L ___ 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 in the marketplace
Joe, aa4nn wrote: Exactly. Human factor=Flashy knobs. NEW Q SIGS: QKN? How many knobs does your radio have? QKK? How many of them do you actually know how to use? I find that my KLR [knob learning rate] on a new radio is about 1 K/M [knob per month]. I would like to finish the learning curve within my life expectancy, I'm 67, hence smaller numbers are good. I studied a new IC-7800 at K6IDX's place a couple of years ago. The number of knobs, switches, and buttons exceeds my ability to count them, and few if any of the legends conjured up anything that I thought I knew about radio. I've seen the K3 at an NCCC meeting. It's HF [human factor] is within my limits and I think I can handle it. 73, Fred K6DGW - Northern California Contest Club - CU in the 2007 CQP Oct 6-7 - www.cqp.org ___ 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 in the marketplace
Hi Rick. Just read your post to the Elecraft list. I hope your comments have reached who I feel is the intended recipient. With regard to your NCJ article I would love to read about your impressions of the K3 Would it be possible to forward me a copy of the article. I realise this may not be possible as there may now be copyright issues. If you could. I would confirm that these would be for my own personal use and I would not make reference to them in any media. 73 Rowland G4APO K2, K1,KX1, awaiting 1st batch K3 ___ 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 kaputt
Dear Don My K2/100 is working again I replaced D16 and D17, resoldered all components of the wattmeter circuits, and all problems with swr and power readings were solved. Many, many thanks for your help. I was not so happy with the ATU/100. When you try to tune, relays switch, swr leds do not light, LCD shows swr 1:1, although it should show more than 2:1, switching stops after 2-3 seconds, and if you tune again the process repeats. K2/100 and KAT7100 communicate: high or low power indication leds light according to the power required, Ant 1 and Ant2 switch correctly, all switches Maybe there is a problem with U8? Your kind assistance will be welcome once again. 73 Raimon EA3EZO Raimon, If it were on my workbench, the first thing I would do at this point is to replace KPA100 D16 and D17, then check the operation of the wattmeter again. If I understand correctly, it did work at one time, so no additional calibration of the wattmeter should be required. If the new diodes do not correct the bad readings, then you should look for an unsoldered or poorly soldered connection in the wattmeter circuits - R26, R27, U5, U6, Q10 and Q11 as well as the associated resistors and capacitors. Check the schematic to see which components are connected to the listed devices. Check the lead tinning and soldering of T4 at the same time. After the KPA100 is working correctly, add the KAT100 and check the combination. If you have to obtain 1N5711 diodes to replace the ones in the KPA100, order 2 for the KAT100 at the same time so you will have them available in case they are needed. ___ 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] dual receive
David Ferrington, M0XDF wrote: Being relatively new and not having a rig with two receivers, please forgive stupid question: Asking a question automatically makes it non-stupid :-) Once I have my K3 with the KRX3 - working split, listening on the Rx freq in 1 ear and the Tx in the other should be a breeze - right? I don't know and would like to hear the answer from one or more of the E-Guru's too. If 3B7C is working on 14.150 (their Tx) and working 5 up (their Rx) What is the correct term for the 14.145 freq and the term for the 14.150 freq? QRG 3B7C 14.150 QSX 14.155 which technically translates to: The exact frequency of 3B7C is 14.150 and he is listening on 14.155 A great listing of way more Q-signals than you'll ever want to know can be found at www.geocities.com/wa6tbh Some are sort of quaint, and several are carefully tailored to one group of people: QRP: Shall I reduce power? Aeronautical Note: Refers to communications ... since some fighter pilots might be expected to confuse the transmitter power with the throttle? :-) We hams love to nounify Q-signals. Thus, we'll say, The QRM is terrible tonight, or 3B7C's QRG is 14.150 and last I checked, his QSX was 14.155 We will sometimes verbify them as well: W6XXX, please QSY, you're QRM'ing the Digestive Disorders net. 73, Fred K6DGW - Northern California Contest Club - CU in the 2007 CQP Oct 6-7 - www.cqp.org ___ 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] More K3 Audio Files
I'm not certain if it's because it's recorded in 2 channels or not, but this audio is distinctive and pretty exciting. Especially the 75m demo. Thanks Tree! [Elecraft] More K3 Audio Files Tree tree at kkn.net Thu Sep 20 23:18:54 EDT 2007 Previous message: [Elecraft] Fwd: K3 and phase noise Next message: [Elecraft] K3 - Sweet sidetone! I started putting some K3 audio up in this directory: http://www.kkn.net/~tree/K3Audio/ The second file is some of the CW Sprint with the K3 on 20 meters. Enjoy. Tree N6TR ___ 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 and QSK
Thanks Ed on both counts. I am glad test works, and indeed I was confused about the PTT/QSK mode issue being discussed. Leiogh/EA5ZNU On Fri, 21 Sep 2007 11:20 am, Ed Muns wrote: The K2 TEST mode inhibits TX in CW, but it doesn't affect SSB or RTTY modes, only CW and TUNE. I see the K3 has a TEST button which in the quickstart is listed under SSB mode as alowing off the air adjustments. I hope it applies to all modes, including CW. Yes, the TX/TEST feature in the K3 works in all modes. All it does is prevent RF being transmitted. The rest of the TX functions as normal. You can use it in SSB, for example, to set your MIC and CMP settings and listen in the MONITOR and adjust its level, all without going to a dummy load or transmitting RF to an antenna. A very nice K2 feature, further enhanced in the K3, and it is very handy. For me, an across the board TEST gate makes more sense than saying QSK mode = QRT. Different issue entirely. There are a number of operational scenarios needing to gate CW transmission (on AND OFF) with PTT/footswitch. 73, Ed - W0YK ___ 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 and QSK
Radio Off brings back memories. A few years back, a good ham friend of ours, with whom we had a daily ragchew on the Baltimore Beltway, told us this story: Following our sometimes long ragchew on 2 meters, on one of Baltimore's famous repeaters - he drove a little farther north on his 58 mile daily commute toward his home in Pennsylvania (Stewartstown, PA), at the end of his workday. Ah ... the Baltimore County repeater (K3SP) had activity. A younger voice was on, in a QSO. Sounded familiar he thought. He listened for while - but the talking went on and on. He wondered who this ham was? He even heard some familiar names mentioned? ... Turns out his 5 year old, at home, had turned on his 2 meter rig - and was talking on the rig like Daddy always does! The only other rig off incident, happened to me on a Saturday night - when I took the wife out to dinner. While on our trip south, I was explaining how our local repeater and its gang worked. I even mentioned names and characters, and even told her about a couple of cranky ones. Turns out my 2 meter rig was on, and keyed - throughout that whole personal conversation. I guess all of Baltimore got wind of our converstation that night! Wonder what else I said that night? Fred, de N3CSY Boardwalk for $500? In 2007? Ha! Play Monopoly Here and Now (it's updated for today's economy) at Yahoo! Games. http://get.games.yahoo.com/proddesc?gamekey=monopolyherenow ___ 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: K3 [Elecraft] transvertor mode question
Concerning TX/RX out of ham bands: Maybe there is some way thanks to firmware - allow general coverage ONLY in transvertor mode. Maybe some wish-list is there... About offset - if it is the same as on K2 it is +-9,99kHz so sometimes it is enough. Maybe it is not the same as on K2, who knows... 73! Lexa, ok1dst [EMAIL PROTECTED] napsal(a): Ahoj Lexa, I do not believe that there is many such requests for having ... I agree with you that most standard rigs will not go above 30MHz and often do better on 14MHz or 21MHz than they do on 28MHz. I would hope that the K3 does show major differences in its performance from band to band. I do think that using low VHF for the IF could make good sense, assuming of course that the IF transceiver does a good job at these frequencies. are after some mods able to go from 1 to 30MHz ... If I remember correctly, Wayne has written in the past that the K3 will not transmit in the CB range and that this blocked by the firmware. The firmware will not be released, i.e. user firmware modifications are not possible. At least not without a lot of reverse engineering. Also I believe that Wayne also wrote that Elecraft will compile different versions of the firmware with feature adjustments depending on the local laws of where the K3 is going to be used. OperationalManual to study - not found on Elecraft Web ? ... I am sure that the manual will be downloadable soon - a fortnight or so? vy 73 de toby ___ 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 and QSK
N6TR: This is an important point that I should have made before. We need an option to ignore any input on the paddle input (or CW input) unless PTT is asserted. Amen! Rather than using a Spot button, I send a few dashes from my key to hear my sidetone when zero beating someone. Less effort to move my hand from the paddle to the radio doing it this way. After I'm zero- beat, I use PTT via foot switch to transmit. 73, Bill W4ZVI'm with you, Bill (and Tree). That's exactly what I do.73, Norm - W1MO ___ 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 and QSK
Well, the response to this was rather positive for having the ability to turn off QSK. I, like Tree, should have included the point about having PTT input for CW. Since I rarely use an amp or full breakin, I previously didn't have a need for a footswitch in CW. But I now will consider it's use after reading this thread. Thanks! At 9/21/2007 04:31 PM, Norm Duxbury wrote: N6TR: This is an important point that I should have made before. We need an option to ignore any input on the paddle input (or CW input) unless PTT is asserted. Amen! Rather than using a Spot button, I send a few dashes from my key to hear my sidetone when zero beating someone. Less effort to move my hand from the paddle to the radio doing it this way. After I'm zero- beat, I use PTT via foot switch to transmit. 73, Bill W4ZVI'm with you, Bill (and Tree). That's exactly what I do.73, Norm - W1MO ___ 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 and QSK
FWIW, a good friend of mine and super CW OP/Contester/DXER (past-pres of NCCC) was a strong advocate of the CW PTT, esp if running the linear. WA6VNN Al ** See what's new at http://www.aol.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 and QSK
For super fast contesting I don't see how one could beat the combination of a QSK amplifier and a QSK rig. I must be missing something. de Joe aa4nn -Original Message- From: [EMAIL PROTECTED] Sent: Sep 21, 2007 7:12 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 and QSK FWIW, a good friend of mine and super CW OP/Contester/DXER (past-pres of NCCC) was a strong advocate of the CW PTT, esp if running the linear. WA6VNN Al ___ 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 in the marketplace
Rick, I too want to watch Elecraft evolution as a company. Niche marketing is especially interesting to me. I know it is a personal factor, but I want a separate mode switch, and separate instant selection band switches. Leaving these off a high end rig has no excuse and altho die hard Elecraft folks will defend to the death, these two human factors are important and I am hearing privately from many guys who agree with me and who like big rigs (but will not send a message to the group, likely for fear of attacks from rabid fans). See, I do not want a rig that I have to get used to. Also, because the rig was designed from scratch, there is no excuse for the small box/front panel. And for TWO fans! That is the main reason I say K3 evolved from K2... i.e., toy sized, etc., but not the innards, of course. This reminds me of the Drake TR-7 face design which was a HUGE mistake altho Drake told me that they consulted lots of experts (ex-spurts) and then came up with a look of a consumer stereo. I know that hurt that rig market when it was up against JA rigs with military look. Real engineers seem to stall out when they try to confront intangible human factors, which is understandable because those factors often do not make logical sense. 73, Charles Harpole [EMAIL PROTECTED] _ Test your celebrity IQ. Play Red Carpet Reveal and earn great prizes! http://club.live.com/red_carpet_reveal.aspx?icid=redcarpet_hotmailtextlink2 ___ 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 and QSK
That's true. But if you don't have a QSK amp, using PTT to switch the radio from RX to TX, send the memory (CQ, Exchange or QRZ) and immediately back to RX is the next best thing. No VOX delay hang time. 73HankK8DD Joe, aa4nn wrote: For super fast contesting I don't see how one could beat the combination of a QSK amplifier and a QSK rig. I must be missing something. de Joe aa4nn -Original Message- From: [EMAIL PROTECTED] Sent: Sep 21, 2007 7:12 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 and QSK FWIW, a good friend of mine and super CW OP/Contester/DXER (past-pres of NCCC) was a strong advocate of the CW PTT, esp if running the linear. WA6VNN Al ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Fwd: K3 and phase noise
Between the broadcasters, and band plan conflicts between countries, 40m here on the east coast, to me at least, has been practically worthless. Down to about 25KC of useful air. David Wilburn [EMAIL PROTECTED] K4DGW K2 #5982 FP#-1751 Geoffrey Mackenzie-Kennedy wrote: On 9/21/07, Bill Tippett [EMAIL PROTECTED] wrote: Not to worry...I'm going to set up a company to sell phase noise offsets to non-K3 users. :-) Any discounts being offered to those of us who live in the first hop zone of Eu 40m BC stations, and who use 7130 - 7200 kHz? Number of stations : Too many. Carrier levels : Can reach -10 / -5dbm at Rx. BC Tx Phase Noise : At times a problem. Modulation : Enthusiastic with pop music especially, another problem. 73, Geoff GM4ESD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Fwd: K3 and phase noise
Also meant to say, sorry to hear about your location, sounds worse than what we have. David Wilburn [EMAIL PROTECTED] K4DGW K2 #5982 FP#-1751 David Wilburn wrote: Between the broadcasters, and band plan conflicts between countries, 40m here on the east coast, to me at least, has been practically worthless. Down to about 25KC of useful air. David Wilburn [EMAIL PROTECTED] K4DGW K2 #5982 FP#-1751 Geoffrey Mackenzie-Kennedy wrote: On 9/21/07, Bill Tippett [EMAIL PROTECTED] wrote: Not to worry...I'm going to set up a company to sell phase noise offsets to non-K3 users. :-) Any discounts being offered to those of us who live in the first hop zone of Eu 40m BC stations, and who use 7130 - 7200 kHz? Number of stations : Too many. Carrier levels : Can reach -10 / -5dbm at Rx. BC Tx Phase Noise : At times a problem. Modulation : Enthusiastic with pop music especially, another problem. 73, Geoff GM4ESD ___ 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 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 Vox Gain
Its been five or six years since I built my K2/100, and I don't remember what I would need to do to increase my vox gain. R14 on the KSB2 is 5.6K. I want to use the Heil Goldline GM-5 dynamic mike. Should R14 be increased or decreased to keep the vox from dropping out between words? If vox is set to .4 it doesn't hold in quite long enough, and if it is set to 1.0 it holds in too long. I have configured the K2 front panel mike connector so the 5 V is present for electret mikes and not in the circuit for dynamic mikes (wired for Kenwood). Thanks. Roy Morris W4WFB ___ 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] NJQRP Homebrewer Sprint this Sunday!
It's that time of year, again! Time for the Fall edition of the NJQRP Homebrewer Sprint. It will be held this Sunday night (Monday morning UTC time). So put on your headphones, grab your key and come join us for a spell. Work a half-hour, work an hour, work all four! The point is to join in and have some fun! This time, however, this will be a CW ONLY event, due to the lack of PSK-31 entries. Mission: Promote homebrewed homemade equipment on the air together. Kits are considered homebrew. Anyone with ANY equipment can enter; and is highly encouraged to do so! Sponsor:New Jersey QRP Club ( http://www.njqrp.org ) When:The fourth Monday in March and in September, -0400 UTC (Sunday evening in USA/Canada) Modes: CW only, starting this edition, QRP friendly frequencies recommended on 80, 40, 20, 15 and 10 meters. Exchange: RST - State/Province/Country - Power out QSO Points: 2 Commercial Equipment 3 Homebrew Xmtr or Rcvr 4 Homebrew Xmtr AND Rcvr or Xcvr (Kits are okay for homebrew) Power Mult: The highest power used during the contest determines the multiplier ... a) 5W = X1 b) 1-5W = X7 c) 250mW - 1W = X10 d) 250mW or less = X15 Multiplier: State/Province/Country for all bands. The same station may be worked on more than one band for QSO points and SPC credit. SCORE: Points(total for all bands) x SPC (total for all bands) x power multiplier. Awards: Awards: Special certificates will be awarded. Results: Sprint results will be published on the NJQRP Web pages Logs: Entries must be received by 30 days from the contest. The log sheets and summary should be included. E-mail logs are accepted in text form. (No word processor files etc). Also paper logs are ok. Include an SASE or E-mail address for the results, if desired. Please include your Soapbox info with your equipment and exploits. Send logs to: Larry Makoski, W2LJ 327 Clinton Place South Plainfield, NJ 07080 or send by email to [EMAIL PROTECTED] Spring 2007 Results N4BPBob 19964 pts WG7YBob 7772 pts KR1SJim 5824 pts KG4WEd 3570 pts AB1AV Bill 2268 pts KD2MX Paul 1792 pts WB8LZG Gregg1512 pts K8KFJ Gary 840 pts W1PID Jim 224 pts W5ESE Scott 168 pts VE3HUR Don 112 pts Soapbox: I didn't hear much except static crashes - no AGC isn't nice on the eardrums! - VE3HUR Where was the activity??? Quit after the first two hours for lack of anyone to work. - N4BP I set up my DSWs and listened for the first half hour on 40 and 80. I didn't hear anyone playing! So I quit. Then I thought, I can't quit. So I listened on 40 with the FT-900. There was Bob, N4BP. The only player. I worked him and quit again. Then I listened again an hour later. 40 was very dead. But Bob had moved to 80 and I worked him there. Then I picked up Bill AB1AV and KG4W in VA. So I quit this sprint 3 times. - W1PID Thanks for a fun contest. But where did everyone go after 0200Z??? I guess conditions really went downhill after that, but tried to keep going right to the end. Big surprise was WB8LZG, who I was sure was QRO, he was so loud. Really enjoyed getting a 119 from Bulgaria! - KR1S My 20m antenna isn't the greatest so I decided to fire up on 40m. I was hoping I'd find enough Qs there to keep me somewhat busy. However, that didn't turn out to be the case. Since I didn't have 80m in the K1, I decided to stick it out there on 40 for a bit but the sparce activity continued. I never did get to work any west coast stations. I heard K7TQ work N4BP but then he disappeared. Anyway, I thank the sponsor for this event and the opportunity to work other homebrewers and play radio. - K8KFJ Participation seemed light, or perhaps propagation only covered the East Coast. N4BP was loud as usual, but KD2MX was really booming in. Maybe I'm not a contester, since I quit at bedtime, but I was glad to catch this sprint. - AB1AV This is my entry for the HB Sprint on Sunday night 3-25-07. This is my 1st effort in the event. - KG4W The bands were very noisy and I lost a couple of potential QSOs in the QRN. Seemed like activity was way off from last year or conditions were worse then they seemed as QSOs were few and far between. - KD2MX Very gud signals on the band tonight. W4QO was booming into Michigan with just 400mw ! WOW ! Great signal. Band went long abt 0130 Z here. Lots of fun es a gud turnout. - WB8LZG Thanks alot for sponsoring the event. Didn't hear much activity, but decided to send in a log
[Elecraft] K3 AGC Design Question
Question please - is the hardware AGC preceeding the DSP active only in excessive signal scenerios to keep the DSP from becoming overloaded, or can the hardware AGC be activated at normal signal levels by the K3 firmware to work in conjunction with the AGC algorithm in the DSP stage? ___ 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 AGC Design Question
Question please - is the hardware AGC preceeding the DSP active only in excessive signal scenerios to keep the DSP from becoming overloaded Delete the word only and change DSP to ADC you've got that part correctly understood :-) It is used to protect the IF Analog to Digital converter from over ranging under extreme signal conditions. or can the hardware AGC be activated at normal signal levels by the K3 firmware to work in conjunction with the AGC algorithm in the DSP stage? The DSP can intervene when appropriate. 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
[Elecraft] K3 AGC Design Question
Thanks very much Lyle! I see (said the blind man). So if you connected a meter to the hardware AGC you would normally see no voltage at typical received signal levels and that ADC might see increasing voltage all the way up to it's tolerance before the hardware AGC would jump in at with some hard value (like turning on RF ATTN) to protect the ADC. But none of this affects what the operator hears as AGC or sees on the S Meter, that's all calculated from the DSP. ? Or does the DSP use any info from whats going on in the analog stage to influence it's behavior and/or displayed indications. [Elecraft] K3 AGC Design Question Lyle Johnson kk7p at wavecable.com Fri Sep 21 23:34:19 EDT 2007 Question please - is the hardware AGC preceeding the DSP active only in excessive signal scenerios to keep the DSP from becoming overloaded Delete the word only and change DSP to ADC you've got that part correctly understood :-) It is used to protect the IF Analog to Digital converter from over ranging under extreme signal conditions. or can the hardware AGC be activated at normal signal levels by the K3 firmware to work in conjunction with the AGC algorithm in the DSP stage? The DSP can intervene when appropriate. 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 AGC Design Question
So if you connected a meter... Let's just say the the hardware AGC does what it needs to do in a carefully crafted way to protect the A to D. The DSP observes and uses this information as it performs its AGC and S Meter duties, and may intervene. There will be some detail in the service manual, but keep in mind that the K3, though clearly created, will evolve :-) and the AGC will be part of the evolution. 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
[Elecraft] K3 AGC Design Question
I've heard this before. Sounds like I could tell you but then I'd have to kill you. ;-) ok tnx... [Elecraft] K3 AGC Design Question Lyle Johnson kk7p at wave.com Sat Sep 22 00:38:01 EDT 2007 So if you connected a meter... Let's just say the the hardware AGC does what it needs to do in a carefully crafted way to protect the A to D. The DSP observes and uses this information as it performs its AGC and S Meter duties, and may intervene. There will be some detail in the service manual, but keep in mind that the K3, though clearly created, will evolve :-) and the AGC will be part of the evolution. 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 and QSK
The K2 TEST mode inhibits TX in CW, but it doesn't affect SSB or RTTY modes, only CW and TUNE. I see the K3 has a TEST button which in the quickstart is listed under SSB mode as alowing off the air adjustments. I hope it applies to all modes, including CW. Yes, the TX/TEST feature in the K3 works in all modes. All it does is prevent RF being transmitted. The rest of the TX functions as normal. You can use it in SSB, for example, to set your MIC and CMP settings and listen in the MONITOR and adjust its level, all without going to a dummy load or transmitting RF to an antenna. A very nice K2 feature, further enhanced in the K3, and it is very handy. For me, an across the board TEST gate makes more sense than saying QSK mode = QRT. Different issue entirely. There are a number of operational scenarios needing to gate CW transmission (on AND OFF) with PTT/footswitch. 73, Ed - W0YK ___ 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
