[Elecraft] [XV144] photo wanted
Has anyone got a pic of the front of an XV144 they could send me please (of list is fine), as close to real size as possible. TIA -- Everything secret degenerates, even the administration of justice; nothing is safe that does not show how it can bear discussion and publicity. -Lord Acton, historian (1834-1902) ___ 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] Test - Sorry about the bandwidth
Is QTH.NET really bouncing everything right now? This is the reason for this experimental mail. 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 Phase Noise?
Thinking about these numbers reminds me of another question I've had. The fact that IMD was measured at 94-95 dB at 2 kHz, and there was no mention of noise limited, makes me wonder what the phase noise performance is. I also recall either Wayne or Eric reporting BDR at 2 kHz of 143 dB. Although I'm sure this number will be derated to be conservative, it must mean phase noise is excellent to even be able to measure these levels (without being noise limited). Wayne, Eric or John (KI6WX) have anything to say? 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
[Elecraft] Re: K3 Filter IMD numbers
Good Morning/Day/Evening/Night, While the numbers which Eric posted a few days ago are interesting, not to mention very good... Congrats! ...I am still wondering about the 2100Hz and 1800Hz filter figures and the 2kHz numbers for 2700/2800Hz would also be rather interesting, because they would look deeply into the IF chain. I suppose we will have to wait for somebody to do some heavy testing. vy 73 de toby PS: Hope this no longer gets bounced as spam by qth.net ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 Filter IMD numbers
Toby, I believe you have stumbled onto something that should be carefully defined when testing with wide roofing filters when the DSP IF is set to the more typical testing bandwidth of 500 Hz. The K3 has both IF shift and narrow passbands available in DSP and they can be effectively used together. Then we hear about the 'narrow filtering with wings' in a recent post and that would further complicate matters. It seems to me that a lot of the DSP setup characteristics must be defined for any test to assure test repeatability. I can envision test setups to make the 2 kHz spacing 'numbers' for the wide filters look good or bad depending on the rest of the parameters. That may be why the list posted by Eric had 'n/a' for the 2 kHz number for the wide filters. For instance when both signals are within the roofing filter bandpass, the results will depend only on the DSP and based on the number of bits used in the input DAC, the BDR should be in the vicinity of 90 dB, but very different (and better) numbers can be obtained by placing one signal inside and the other outside the roofing filter - so I conclude that the receiver setup details must be better defined for any test using 2 kHz spacing. 73, Don W3FPR [EMAIL PROTECTED] wrote: Good Morning/Day/Evening/Night, While the numbers which Eric posted a few days ago are interesting, not to mention very good... Congrats! ...I am still wondering about the 2100Hz and 1800Hz filter figures and the 2kHz numbers for 2700/2800Hz would also be rather interesting, because they would look deeply into the IF chain. I suppose we will have to wait for somebody to do some heavy testing. 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
Re: [Elecraft] Re: K3 Filter IMD numbers
Hallo Don, I believe you have stumbled onto something that should be carefully defined when testing with wide roofing filters when the DSP IF is set to the more typical testing bandwidth of 500 Hz. etc. etc. etc. Stumble is the right word for it - I hadn't thought about this. I would suggest that the DSP filter should have the same bandwidth as the roofing filter for this kind of testing. I'm a photographer by training and currently write software for TV graphics systems, so I am sure there are many on the list who might have more sensible suggestions. 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] Re: K3 Filter IMD numbers
W3WPR: I believe you have stumbled onto something that should be carefully defined when testing with wide roofing filters when the DSP IF is set to the more typical testing bandwidth of 500 Hz. The K3 has both IF shift and narrow passbands available in DSP and they can be effectively used together. Then we hear about the 'narrow filtering with wings' in a recent post and that would further complicate matters. ARRL has been doing testing to 1 kHz spacings since at least 1998, although these measurements have appeared only in their Expanded Test Reports until very recently (when they began publishing 2 kHz measurements in QST reviews). The test procedure has always specified using any filters closest to the standard 500 Hz bandwidth. This is to eliminate differences due to the noise bandwidth of the filter selected. With the advent of DSP, I believe ARRL recognizes the problems that can arise when DSP can modify the filter shape on demand. I believe they just proposed the following in response to this new capability (new test methodology described in October QST): ** Equivalent Rectangular Bandwidth (ERBW) From time to time, members ask why manufacturer's sensitivity specifications are given in microvolts but our measurements are reported in dBm (decibels relative to a milliwatt). The chief reason is that manufacturers typically do not include a bandwidth in their specification, and measurements in different bandwidths are not directly comparable. All other things being equal, there is more noise power in a 3 kHz bandwidth than a 2.4 kHz bandwidth. To overcome that limitation, the sensitivity testing is done with a 500 Hz bandwidth filter, or as close to that as is available. This permits reasonable comparisons of different receivers. With different filter types and with a range of filter skirt slopes (see Figure D), even two 500 Hz filters are not exactly the same. Additionally, some receivers may only have a choice of 400 Hz or 700 Hz widths. Although the filters that a receiver has cannot be changed, the variation in actual bandwidth can be determined by calculating the Equivalent Rectangular Bandwidth (ERBW). This is the width that the filter would have if it passed the same noise power and possessed the ideal shape of vertical sides and a flat passband response. *** It seems to me that a lot of the DSP setup characteristics must be defined for any test to assure test repeatability. I can envision test setups to make the 2 kHz spacing 'numbers' for the wide filters look good or bad depending on the rest of the parameters. That may be why the list posted by Eric had 'n/a' for the 2 kHz number for the wide filters. For instance when both signals are within the roofing filter bandpass, the results will depend only on the DSP and based on the number of bits used in the input DAC, the BDR should be in the vicinity of 90 dB, but very different (and better) numbers can be obtained by placing one signal inside and the other outside the roofing filter - so I conclude that the receiver setup details must be better defined for any test using 2 kHz spacing. 2 kHz (and also 1 kHz) data is still very useful even when interfering signals fall inside a roofing filter. After all, this has been the case for most up-conversion radios with 10-15 kHz roofing filters produced over the past 25 years. I interpreted Eric's n/a simply as meaning they did not have the time or interest to test it since the K3 has the possibility of very narrow roofing filters which would be better suited to 2 kHz spacings. However, I am quite certain that ARRL, RSGB, Sherwood and others will provide 2 kHz test data, even with the wider filters, as they have already been doing for many years. This will be interesting data anyway since it will give us a very good measure of the quality of the K3's IF chain beyond the roofing filter. 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
[Elecraft] K2 - tune power and CW power is inconsistent
Hello. I found that when using the tune button, the power that is measured and transmitted changes significantly. For example, when adjusting the power control for 4 watts, the displayed power can be between 3.3 and 5.6. I measured the V ALC voltage, V PWR DAC output, and detector voltage and found that the voltage sometimes looks like an unstable PLL loop which oscillates. At some point in time, the voltage stops oscillating and settles down to some final random level. This can take from one cycle to as many as eight or so cycles of voltage oscillating up and down. I verified that the CW envelope looks like that shown in the keying mod instructions and that the rising edge time looks the same. I also found that this occurs when keying CW after tune has been done or the power has been changed. After using the CW key several times, the power seems consistent for the most part. I can adjust the power setting for 4 watts, key the transmitter and measure 4.8 watts. I then change the power setting to 5 watts and key the transmitter. I set the power setting back to 4 watts and key the transmitter again, but the power now measures 3.6 watts. Sometimes I can see more power when changing the setting back to 4 watts than what I measured when the setting was at 5 watts. The MAX534 (U8) is an 8-bit DAC which uses a 5V reference. Each DAC step would therefore be around 19mV. I found that most of the time, the amount of DAC voltage correction seen between tune measurements was well beyond a single DAC step, so this to me is not a DAC resolution problem. At one point, I had adjusted the power for 1.4 watts and found some of the following random voltage readings after many tries of performing tune. PowerDAC voltage 1.20.661 1.50.681 1.80.700 2.10.719 This indicates the real resolution of the power steps, but I saw all of these powers and DAC voltages at the same power setting. Can someone explain the exact power control algorithm? How many power measurements are taken when tuning or keying, and how often are the measurements made? When is the first power measurement made after the power envelope starts? How is averaging performed? How is the amount of correction or number of DAC steps of correction determined? Is this done in single DAC steps or larger steps? Thanks Jim ___ 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: K2, KSB2,KAT2, XV60
Elecraft K2, 10 watt version, with built in 20 watt antenna tuner (KAT2), the SSB Module (KSB2) and the XV60 transverter interface module. This is serial # 5050, with all updates. Price is $ 750, US and Canada only, and I pay for shipping UPS Ground, insured. No microphone, but power cord and all manuals are included. I accept Paypal, bank money order or US postal money order Tom K8TB (k8tb at bosscher.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 2.7 - 5-pole vs. 2.8 - 8 pole filter
Does anyone have an opinion on the standard 2.7 - 5-pole vs. the 2.8 - 8-pole as the basic filter in the 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
Re: [Elecraft] META E---mail filters
Jeremiah McCarthy wrote: Due to retirement economics and the age of the computer, (which also translate into economics) my connection is dial-up...The digest arrives Solutions to your problem should cost essentially nothing. They can probably be done by using the software you already have. They can certainly be done on hardware that is too low spec to have any second hand value and with software that is free. Unfortunately, for reasons I explained off list, I am not able to help you further. [ Apologies for continuing this on list. He has put me on his spam list and challenged me to say anything I have to say publicly and this is maybe a last chance to get the message across. I can't cover the whole off list reply without violating the list charter. Note: by default, discussion about use of a list is on topic on that list. ] -- 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
[Elecraft] K2 is still hot rig
I worked the 3B7C station last night on 40 meters with a dipole. I compare the signals between the PROII and the K2/100. Same! But, I think the K2 was easier on the ears...cleaner audio or something. Reminds me the the ICOM 765 which is the sweetest sounding radio I've ever used in my opinion. Butthe signals were still the samebut sweeter on the K2 thant the PRO-2 Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ 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] headphone jack
Hi The headphone jack on my K2 has stopped switching the rig back to the internal speaker when I unplug the headphones. Seems that I have read before that someone was having trouble with the phone jacks going bad on the K2. Is this the trouble they were having or do I have a problem elsewhere? The rig works great except for that and it is less than a year old. 73 Scott N5SM _ 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
[Elecraft] XV144 upgrade to more power
Let me put this way: http://personales.mundivia.es/ea3axv/elecraft_xv144_50w_mod.htm Should people of ELECRAFT approve this mod? Any chance for some upgrade KIT from ELECRAFT in future? 73' Samir, SM7VZX - Date: Fri, 14 Sep 2007 22:47:59 +0100 From: George Frazer [EMAIL PROTECTED] Hi to all on the list. Samir that would be a nice idea. The kit works very well but 25w from the XV144 is a bit light. I am now looking for an amp to get me up to around the 100w mark. I have just finished upgrading my K2 with the XV144, KPA100 and KAT100. I enjoyed building all three and learnt alot in the process. I had not built the origional k2 as I had bought it through ebay. It was faulty when I got it and I upgraded it with the A to B kit and the 60m / transverter kits. Now thats its a K2/100 with the extras I am loving it. 73 George GI4SJQ -- Hello, I have the XV144 transverter, which I will use with tube amplifiers (GS31 or GS35), so I need more than 25W, which XV144 barely deliver (being really HOT already with 10-15W). Does ELECRAFT have any plans for some small ?really? linear amplifier??? We have K2 and K2/100, why not XV144 and XV144-100??? I know that are many brick amps (MIRAGE) out there ? 73' Samir, SM7VZX -- Date: Fri, 14 Sep 2007 17:26:54 +0100 From: David Ferrington, M0XDF [EMAIL PROTECTED] Subject: [Elecraft] Fan for XV144 I have purchased an XV144 to go with my K3 (will arrive when it does). Having read some previous posts about FM and heat and installing a computer fan on the main board, I wondered if anyone could give me some info on the spec of the fan. I have a number of old 1GB SCSI drives in cases that I'm going to dump (unless anyone in UK want to make me an offer :-) and some Sun IPX/IPC stuff too (sorry, not meaning to use this forum as ebay), so probably have a suitable fan if I knew the spec. The alternative to that is to see in Elecraft will sell me the XV432 fan. Samir Popaja, 7S7V /SM7VZX http://ww.qsl.net/7s7v Duvhöksgatan 4B SE-21558 Malmö Sweden ___ 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] headphone jack
Read the recent archives for this month, apparently a known problem and you can get a part from Elecraft. On 17/9/07 15:59, Scott McDowell [EMAIL PROTECTED] sent: Hi The headphone jack on my K2 has stopped switching the rig back to the internal speaker when I unplug the headphones. Seems that I have read before that someone was having trouble with the phone jacks going bad on the K2. Is this the trouble they were having or do I have a problem elsewhere? The rig works great except for that and it is less than a year old. 73 Scott N5SM _ 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 -- If you must play, decide on three things at the start: the rules of the game, the stakes, and the quitting time. -Chinese Proverb ___ 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 is still hot rig
I can understand that and I would agree. I had a Ten Tec Argonaut V. Compared to the K2, it sounded, for lack of a better description...thick and muddy. I like the crystal filters much better than the DSP that was on the Argonaut V and the K2 is much quieter than a couple of other rigs that I have. This past weekend, I was able to hear a Norway station that was barely out of the noise level on CW. I doubt that I could have heard it on the Century 22 or the Kenwood TS-530SP. Gary, N7HTS On Mon, 17 Sep 2007 07:46:02 -0700 (PDT) Lee Buller [EMAIL PROTECTED] wrote: I worked the 3B7C station last night on 40 meters with a dipole. I compare the signals between the PROII and the K2/100. Same! But, I think the K2 was easier on the ears...cleaner audio or something. Reminds me the the ICOM 765 which is the sweetest sounding radio I've ever used in my opinion. Butthe signals were still the samebut sweeter on the K2 thant the PRO-2 Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ 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 8T line resistance check
I'm at the second set of resistance checks on the RF board (page 62). All look OK except U10 pin 8, the 8T line. It is over 1M ohm... Clearly that's 500 ohms, but looks like I have an open somewhere. The 8R line is 2.5K. I've eyeballed all the components on the 8T line / solder joints, etc. Q23, U10, Q20 (none of the PA circuits are installed yet). Normal? or trouble? It's not worth much, but the K2 is functioning perfectly on 40M RX. THANKS! 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
[Elecraft] FS K-2 # 3434
K-2 with KPA100, KAT100, KSB2, 160, AF2, KDSP2, and MH1. Reply off list to [EMAIL PROTECTED] Greg Storms KD7SRC ___ 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] failing digest
No digest received to-day. Yesterday I had the last Vol41 Issue24. Problems? I saw in mailman.qth.net archives, that messages have been changed to-day. I had to see in Elecraft site that K3 delivery has been postboned. Sorry if darkness and silence falls now. Benny ___ 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: the Yagi problem
Ed, A couple of other thoughts on this, assuming that no relays are switching as you vary power from 80-120 W (see previous e-mail). We need to get an o'scope on your TX output at the time the SWR goes up to see if the PA is unstable. If it isn't, then perhaps the SWR bridge transformers are getting saturated, or there's RF getting into the SWR bridge op-amp. If it's the PA going unstable, the next step is to have you put in the KANT3 module rather than the KAT3. Wayne On Sep 17, 2007, at 9:26 AM, Ed Muns wrote: On your 100W+ SWR problem (going wild after having been 1.0:1): once this has occurred, doing a TUNE (not an ATU TUNE), does reducing the power back below some threshold restore the SWR, or does it remain high? The higher SWR is only at 115 and 120 watts. No problem reducing power and having the SWR return to 1.0:1, so I'm assuming there is something still going on in the KPA3. All measurements are done by using TUNE to read the actual power and SWR. (I did a TUNE at 5 and 50 watts on all bands before redoing the measurements.) Attached are updated tables of data for: 1. 50 ohm load, KAT3 bypassed. 2. Antennas, KAT3 bypassed. 3. Antennas, KAT3 tuned. It was at a power request of 120 watts and inflated SWR on 20 meters that K6XX heard the problem with my signal. At 100 watts, the problem went away (as does the inflated SWR). For FCS, maybe the firmware should limit power to 100 watts, at least until the KPA3 can be fixed at the higher power levels? Ed Power Output.xls --- 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: the Yagi problem
Yes, this was intended as an internal discussion of a field-tester's rig :) Those darn e-mail aliases Back to my lab bench. 73, Wayne N6KR ___ 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 : signal genarator Marconi 2018A
Just a little bit of topic : On an Hamfest on saturday, I've purchased a nice signal generator Marconi Instuments 2018A, of course, without manual. My question : how do I unlock the Protected Functions to change, for instance, the various step sizes (RF level, mod level, frequency offset) ? The factory defaults to 1 (µV, % and kHz), not very convenient for aligning analogic devices ! Thanks to help me, off or on list. 73 Luc/F6HJO/HB9ABB ___ 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: [qrp-tech] Crimpers Revisited
Excellent question! The set I purchased is marked just this way, and I'm at a loss to understand how to apply them. John K5MO Bob Fish [EMAIL PROTECTED] Sent by: To [EMAIL PROTECTED] Elecraft@mailman.qth.net, [EMAIL PROTECTED], [EMAIL PROTECTED] cc 09/16/2007 09:55 PM Subject [qrp-tech] Crimpers Revisited Please respond to [EMAIL PROTECTED] Hi Guys, Let me start by thanking every one who responded to my request for a source for good coax crimpers. Lots of good choices at various price points. I noticed that some crimpers were listed with dyes or jaws with no coax designation just three digit dye sizes like .148, .259 or .291 or whatever. These are obviously the diameter of the closed jaw after it has ratcheted to its tightest position. I started thinking, how would you select the right size dye for a random piece of coax. I have a set of digital calipers. would I measure the OD of the sheild or the plastic outside cover, or the dielectric and add some magical number like twenty thousanths of an inch. I have used crimpers thousands of times on various jobs and usally there is a set of crimpers with RG-316, or whatever, written in felt pen on the handle and you used them without a second thought. Whats the correct way to figure it out or does it change with every connector coax combo. Sorry for the slightly off topic use of bandwidth, but I have never heard it discussed before. Maybe thats because only a knucklehead like me would ask this question! Thanks, Bob K6GGO Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/qrp-tech/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/qrp-tech/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ This email has been scanned for SPAM content and Viruses by the MessageL abs Email Security System. ___ 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: [qrp-tech] Crimpers Revisited
[EMAIL PROTECTED] wrote: Excellent question! The set I purchased is marked just this way, and I'm at a loss to understand how to apply them. John K5MO If you look at the manufacturer's catalog for the particular crimp-on connector, you will find the die size(s) specified. Double crimp (center conductor and shield) will have two die sizes called off. Sometimes you have to track down the assembly drawing, but generally the manufacturer's catalog will have it, along with the stripping dimensions. In rare cases, the stripping dimensions and die sizes will be printed on the connector bag, but I've only seen that once or twice. It's important to follow the dimensions as closely as you can. Jack K8ZOA ___ 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 : signal genarator Marconi 2018A
Luc I've uploaded the relevant parts to http://www.astromag.co.uk/2018%20second%20functions.pdf It's a four page scan from the Marconi 2018 manual, hopefully it will be the same on the 2018A. I have a 2018 and 2019A (the latter for spare parts). The download is 8 MB... 73 Dave, G4AON K1, K2 and K3 on order. ___ 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 Internal Digital Modes
I confess to not being a CW guy. Yeah, I passed the 20 WPM test for my Extra many years ago, but that didn't make me a devotee. I use microphones or keyboards when I operate. (With the K3, I've even used my paddles, but not for CW!) I find when I have the K3 turned on, I often tune down to the PSK or RTTY areas of 20 meters and watch the text scroll by on the VFO B display of the K3. I used to do this sometimes with my IC746PRO with its RTTY decoder, but that radio doesn't decode PSK31, so it was mostly interesting only during RTTY contests or W1AW bulletins :-) Since my PCs are tied up with my work, I don't usually have soundcard software running. With the K3, I don't need the PC or its software! It internally decodes RTTY, PSK31 and CW. This feature has changed my perspective on listening around on the bands. RTTY and PSK are now as accessible to causal listening as SSB or CW. Oh, yes, about CW. The CW decoder has driven me to listen around in the CW segments. I want to see if I can figure what's being sent before the decoder does, or to see if I can catch the decoder in an error :-) My ability to copy CW in my head, never very good, is certainly getting better with this visual reinforcement. 73, Lyle KK7P K2 S/N 002 PS - I am not unbiased in all of this, of course, having written the DSP portion of these demodulators. But making something and finding myself wanting to use it are two different things :-) ___ 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 Internal Digital Modes
Lyle, how good is the decoder? My limited experience of CW decoding in firmware is that the CW has to be near machine perfect in order for the decoder to get it. What's the K3 like? On 17/9/07 19:29, Lyle Johnson [EMAIL PROTECTED] sent: Oh, yes, about CW. The CW decoder has driven me to listen around in the CW segments. I want to see if I can figure what's being sent before the decoder does, or to see if I can catch the decoder in an error :-) My ability to copy CW in my head, never very good, is certainly getting better with this visual reinforcement. -- Once upon a time a man whose axe was missing suspected his neighbour's son. The boy walked like a thief, looked like a thief, and spoke like a thief. But the man found his axe while digging in the valley, and the next time he saw his neighbour's son, the boy walked, looked and spoke like any other child. -Lao-tzu, philosopher (6th century BCE) ___ 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 Internal Digital Modes
Just to reinforce this, I now only use software for RTTY if I absolutely have to (mainly for contesting). I find it so much easier to use my paddles and the K3's decoder. You can even do this for casual contesting using the CW Messages M1-4. An added benefit from this is by getting use to sending RTTY and PSK with your paddles it makes you better at sending CW. Since you can see what you are sending, you can tell if you left just a little too much space between letters, so it helps with your timing. When working 3B7C last week (I need him again cuz they don't have me in their log!!!) I had the CW decoder on. He was an S1-2 and be adjusting the Threshold setting (there's an auto- threshold option now too) and using a narrow BW filter in the DSP I was able to get about 80-90% print on the decoder (there was some QSB to deal with). Very Fun Stuff! - 73, Greg - AB7R Whidbey Island WA NA-065 On Mon Sep 17 14:29 , Lyle Johnson sent: I confess to not being a CW guy. Yeah, I passed the 20 WPM test for my Extra many years ago, but that didn't make me a devotee. I use microphones or keyboards when I operate. (With the K3, I've even used my paddles, but not for CW!) I find when I have the K3 turned on, I often tune down to the PSK or RTTY areas of 20 meters and watch the text scroll by on the VFO B display of the K3. I used to do this sometimes with my IC746PRO with its RTTY decoder, but that radio doesn't decode PSK31, so it was mostly interesting only during RTTY contests or W1AW bulletins :-) Since my PCs are tied up with my work, I don't usually have soundcard software running. With the K3, I don't need the PC or its software! It internally decodes RTTY, PSK31 and CW. This feature has changed my perspective on listening around on the bands. RTTY and PSK are now as accessible to causal listening as SSB or CW. Oh, yes, about CW. The CW decoder has driven me to listen around in the CW segments. I want to see if I can figure what's being sent before the decoder does, or to see if I can catch the decoder in an error :-) My ability to copy CW in my head, never very good, is certainly getting better with this visual reinforcement. 73, Lyle KK7P K2 S/N 002 PS - I am not unbiased in all of this, of course, having written the DSP portion of these demodulators. But making something and finding myself wanting to use it are two different things :-) ___ 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 Internal Digital Modes
Lyle, how good is the decoder? My limited experience of CW decoding in firmware is that the CW has to be near machine perfect in order for the decoder to get it... It does a decent job on reasonable code. I use it as an aid (OK, crutch) rather than as the Gospel :-) Lyle ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: K3 Internal Digital Modes
David Ferrington, M0XDF wrote: Lyle, how good is the decoder? My limited experience of CW decoding in firmware is that the CW has to be near machine perfect in order for the decoder to get it. What's the K3 like? David, Lyle will give you his observations, I'm sure, but I thought I'd mention that I've been able to copy some pretty sloppy code with it. The decoder keeps track of dot/dash ratios, factors out noise to the extent possible, and now also has an AUTO mode where it will try to select the ideal signal level for element vs. space decisions. I'm also planning to do additional analysis of element vs. letter vs. word space lengths, at which point it should handle very individualist sending. 73, Wayne N6KR --- 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] Re: K3 Internal Digital Modes
wayne burdick wrote: Lyle will give you his observations, I'm sure, but I thought I'd mention that I've been able to copy some pretty sloppy code with it. When you're ready for final testing, just let me know and I'll get out my bug collection. -- 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 Internal Digital Modes
The best CW DSP decoder I've ever used was the one between my ears...sloppy code and all. Have a great day! Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: K3 Internal Digital Modes
1 word WOW! On 17/9/07 20:01, wayne burdick [EMAIL PROTECTED] sent: David Ferrington, M0XDF wrote: Lyle, how good is the decoder? My limited experience of CW decoding in firmware is that the CW has to be near machine perfect in order for the decoder to get it. What's the K3 like? David, Lyle will give you his observations, I'm sure, but I thought I'd mention that I've been able to copy some pretty sloppy code with it. The decoder keeps track of dot/dash ratios, factors out noise to the extent possible, and now also has an AUTO mode where it will try to select the ideal signal level for element vs. space decisions. I'm also planning to do additional analysis of element vs. letter vs. word space lengths, at which point it should handle very individualist sending. 73, Wayne N6KR --- http://www.elecraft.com -- Math Anxiety: an intense lifelong fear of two trains approaching each other at speeds of 60 and 80 MPH. -Rick Bayan ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 Internal Digital Modes
Wayne, Any chance that you could publish the algorithm when it's perfected? Simon Brown, HB9DRV - Original Message - From: wayne burdick [EMAIL PROTECTED] Lyle will give you his observations, I'm sure, but I thought I'd mention that I've been able to copy some pretty sloppy code with it. The decoder keeps track of dot/dash ratios, factors out noise to the extent possible, and now also has an AUTO mode where it will try to select the ideal signal level for element vs. space decisions. I'm also planning to do additional analysis of element vs. letter vs. word space lengths, at which point it should handle very individualist sending. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 Internal Digital Modes
Bit more - FWIW I am looking at CW decoding software on the PC. Once the K3 is shipping and you and the internal firmware team have caught a breath of air I wouldn't mind looking at this. Simon Brown, HB9DRV - Original Message - From: Simon Brown (HB9DRV) [EMAIL PROTECTED] Any chance that you could publish the algorithm when it's perfected? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 Internal Digital Modes
I am normally a 99.9 % lurker on the Elecraft list since I find most of the information I am interested in without further cluttering up things, but here is one I haven't seen discussed. Will the CW decoder show your outgoing (real time - not message memories) sending? My MFJ 495 keyer does this and I have found it to be a VERY helpful feature. John, K4JDW ___ 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 on the bench at ARRL
Fellow K3 droolers If Elecraft wishes to have the BEST opportunity for the ARRL to laud the K3 (assuming that it will indeed cause jaws to drop), they better get it in soon. Historically, the BEST reviews (IMHO) are those that are conducted by one of the FAMOUS contesters DURING THE BIG ONE (CQWW ssb and cw). Passing the rig around to the likes of Mark Wilson, Tom Frenaye, or Dave Sumner DURING THE CONTEST will, if successful, have the seal of approval from those in the game and in know who are RECOGNIZED as peers (or better) by contesters and DXers. The BEST reviews historically run the radio through its paces on BOTH MODES. OTOH, if the radio isn't ready for prime time, don't send it in. If I were Elecraft, I sure wouldn't want to read When the power exceeds 100 watts, the SWR goes nuts in QST as part my NEW radio review. However, I really thought that the ARRL tested radios which they PURCHASED so as to ensure a random, production radio. I don't think Elecraft can send them one as the test unit. Maybe there is some wiggle room? Maybe I'm wrong? As a consumer, I would rather the testing agency bought a random production radio as opposed to having one potentially cherry-picked by the manufacturer and sent in for testing. As for Sherwood and RadCom/Peter Hart, maybe they'll take whatever they get. de Doug KR2Q ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 Internal Digital Modes
Hi John. When you turn on the decoder there are presently a few options available. TX ONLY TWO SPEED RANGES WPM CHECK When the decoder is on, you will also see your outgoing CW from the paddle. - 73, Greg - AB7R Whidbey Island WA NA-065 On Mon Sep 17 17:40 , John Sims sent: I am normally a 99.9 % lurker on the Elecraft list since I find most of the information I am interested in without further cluttering up things, but here is one I haven't seen discussed. Will the CW decoder show your outgoing (real time - not message memories) sending? My MFJ 495 keyer does this and I have found it to be a VERY helpful feature. John, K4JDW ___ 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] Re: K3 Internal Digital Modes
... Will the CW decoder show your outgoing (real time - not message memories) sending? Yes, as long as you use the internal keyer. 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] Re: K3 on the bench at ARRL
DOUGLAS ZWIEBEL wrote: ...if the radio isn't ready for prime time, don't send it in. Doug, All production K3s will be 100% tested on all performance parameters, including transmit over the full power range. (The amp discussion accidentally QSP'd to the reflector today was in relation to a heavily modified early beta-test unit, not a production unit.) 73, Wayne N6KR --- 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: K3 Internal Digital Modes
A future firmware revision will also decode and display CW sent via an external keyer, handkey, or computer plugged into the K3. This is even easier than decoding on-the-air CW ;) 73, Wayne N6KR On Sep 17, 2007, at 2:49 PM, Lyle Johnson wrote: ... Will the CW decoder show your outgoing (real time - not message memories) sending? Yes, as long as you use the internal keyer. 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 --- 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 Internal Digital Modes
Hi David: UNfortunately, you're not going to find many devices (other than the human brain) which will decode poorly sent CW... and the K3 is no different... the CW must be pretty well sent before it can decode it, but it seems to do decently well on less than 'perfect' fists. The brain is still your VERY BEST decoder! Just takes some practice... well, OK... a LOT of practice... G Cheers, Tom N0SS At 13:43 09/17/2007, David Ferrington, M0XDF wrote: Lyle, how good is the decoder? My limited experience of CW decoding in firmware is that the CW has to be near machine perfect in order for the decoder to get it. What's the K3 like? On 17/9/07 19:29, Lyle Johnson [EMAIL PROTECTED] sent: Oh, yes, about CW. The CW decoder has driven me to listen around in the CW segments. I want to see if I can figure what's being sent before the decoder does, or to see if I can catch the decoder in an error :-) My ability to copy CW in my head, never very good, is certainly getting better with this visual reinforcement. -- Once upon a time a man whose axe was missing suspected his neighbour's son. The boy walked like a thief, looked like a thief, and spoke like a thief. But the man found his axe while digging in the valley, and the next time he saw his neighbour's son, the boy walked, looked and spoke like any other child. -Lao-tzu, philosopher (6th century BCE) ___ 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 on the bench at ARRL
IMO - the contesters will focus on what their competitors are using to beat them. ;-) Compared to other offerings, if the rig doesn't swamp, nap, click, or artifact it will already be far ahead of some released/reviewed rigs. That kind of info is often lost in a review but the guys sure talk. No need to rush to review, the radio will speak for itself. [Elecraft] K3 on the bench at ARRL DOUGLAS ZWIEBEL dougzzz at gmail.com Mon Sep 17 17:41:12 EDT 2007 Previous message: [Elecraft] K3 from Beta or 1st run to ARRL, Sherwood? Next message: [Elecraft] Re: K3 on the bench at ARRL Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Fellow K3 droolers If Elecraft wishes to have the BEST opportunity for the ARRL to laud the K3 (assuming that it will indeed cause jaws to drop), they better get it in soon. de Doug KR2Q ___ 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] KXPD1 Paddle Base
Hello, I have a limited number of adapter kits for the KXPD1 paddle, so those folks who already own a KXPD1 can use it as a regular desktop paddle. The kits allow you to mount the KXPD1 paddle on a conventional base, and connect it to your favorite rig or keyer. The base is 3 inches square, and black powdercoated. The mounting bracket is gray, so the colors match Elecraft rigs. Weight is about a pound and a half, and the base comes with very sticky rubber feet so the whole assembly stays put. Kit also comes with cable and hardware; you must already have the KXPD1! I am selling the kit for $45 plus $5. shipping. I have a couple photos available: http://home.comcast.net/~ed.goss/Elecraft/kxpd1_1.jpg http://home.comcast.net/~ed.goss/Elecraft/kxpd1_2.jpg --Ed, N3CW-- KX1 and K2 Owner ___ 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] NAQCC September Sprint
This Wednesday evening, the North American QRP CW Club will be holding its monthly sprint. Here are the particulars: Date and time: Thursday September 20th, 0030-0230 UTC (Remember that's Tuesday evening here in the USA) That's 8:30 - 10:30 EDT, 7:30 - 9:30 CDT, 6:30 - 8:30 MDT and 5:30 - 7:30 PDT. Bands - Frequencies: 80M - 3555-3565 kHz (Be courteous to FISTS operating on 3558 kHz) 40M - 7039-7050 kHz (Avoid W1AW on 7047.5 kHz). 20M - 14059-14065 kHz. General: A particular station may be worked once on each band. Operate CW only. All licensed amateurs are invited to participate, but only those operating QRP (5 watts or less) are eligible for awards. Call: CQ NA Exchange: RST - SPC (State Province or Country) - NAQCC Nr. (non-Members substitute power level for NAQCC Nr., e.g. 5W, 1W, etc. Be sure to add the W.) QSO Points: QSO with a Member, 2 points. QSO with a Non-member, 1 point. Multipliers: Each USA state Each VE province Each country except W/VE All multipliers count only once in the contest. Bonus: If you use only a straight key for the entire sprint, multiply your score by 2. If you use only a bug for the entire sprint, multiply your score by 1.5. If you key with anything other than a straight key or bug, there is no bonus multiplier. Categories: SWA - simple wire antennas - for those using a simple wire antenna per NAQCC definition. GAIN - gain antennas - for those using other than a simple wire antenna. Special Award: The purpose of having a special award is to perhaps award a certificate to someone who knows they can't win one of the regular 1st/2nd/TNW certificates, but would still like one of our beautiful NAQCC certificates to display in the shack. Our special award this month goes to the one with the highest score using 4 watts or less power. If the highest scorer wins a 1st or 2nd place certificate, then the SA goes to the next highest scorer. Prize: Continuing this month we are giving away a set of CD's to one participant according to the following rules: 1. The participant meeting the requirements below and posting the highest score will be the winner of a set of CD's in the following months: July, August, September, October, November, January, February, March, April, and May. A. Requirements: The participant must be a NAQCC member and can not have won a CD set previously. Previous winners are: K4BAI (Jul 07) K1EV (Aug 07) B. If the highest scorer does not meet the requirements, then the CD set winner will be the next highest scorer who does meet the requirements. REMEMBER: You HAVE to be a NAQCC member to be eligible to win the CDs; and there's still plenty of time to join before Tuesday night's sprint. To join the NAQCC, please visit: http://www.arm-tek.net/~yoel//joinup.html Entry Deadline: All entries must be RECEIVED before 2400Z on September 26th 2007. So submit as soon as possible, especially regular mail entries. NEW! NEW! NEW! Be sure to use the new NAQCC Sprint Autologger feature! Please visit http://home.alltel.net/johnshan/sprintlog.html after the Sprint to send in your entry! For further information, please visit: http://www.arm-tek.net/~yoel//sprintrules.html -- 73 de Larry W2LJ QRP - When you care to send the very least! http://www.w2lj.qrpradio.com http://w2lj.blogspot.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] Random thoughts from a K3 Field Tester
Bob Thank you very much for your very interesting report. Dragon killer is most impressive. As you know Dragon makes us very sad so some JAs have tried to kill Dragon with top level radio. de aki, ja1nlx - Original Message - From: Bob Locher [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Tuesday, September 18, 2007 12:08 PM Subject: [Elecraft] Random thoughts from a K3 Field Tester I received my K3 several months ago; one of the very last in the group. I still am not sure why I was selected for field testing - I am an operator, not the sort of person who loves to break software and do the detective work to see where a bug is. It is interesting to see the Field Test work. Various bugs are found and dispatched, and operator options smoothed and streamlined. What really amazes me and says so much for the K3 design team is that thus far there have been only four hardware changes in the radio that Field Testers have had to make, all of them trivial. Anyhow, that said, I can happily report that the K3 has exceeded my expectations - and they were high. The receiver is incredibly quiet. The crystal filters are the best I have ever had - and over the years I have had some top line expensive radios, though none of the recent series such as the 7800. The K3 is an absolute joy to tune a band with. When I built my K2 I was so delighted with its performance that it became my station transceiver for the last 7 or 8 years. One of the things I really loved about the K2 was the superb performance while retaining a very simple interface. There were a number of set and forget menu entries in the firmware that allowed the operator to tailor the radio to his or her desires. Well, at first blush the K3 has more controls, and there really is a bit more to learn, but they are intuitive once one understands the philosophy of the radio - much the same as the K2, and in return offer a lot of additional power and flexibility. I regularly used the RIT and XIT in the K2 - well, let me tell you, the RIT and XIT of the K3 is a clear generation ahead. It was a useful capability in the K2 - is a powerful tool in the K3. The A/B VFO capabilities exceed that of the K2. An example - you are chasing a DX station who is operating in a lot of QRM, so you sharpen up the filters making copy a lot easier. But, the split pileup the DX operator is working is spread out all over the place, and looking for the station he is working is really tough with the narrow filter. With the K3, if you want, it is easy to set VFO A to a 200 hertz bandwidth (or whatever) and have VFO B set at say 800 hertz bandwidth so that you can easily look for the station the DX is working. One of the things I loved about the K2 was the AGC - in the passband you could easily tell who was strong and who was weak, while having perfect copy on both of them. But a lot of operators prefer a flatter. more processed signal so that all signals, weak and strong, sound alike. No problem - the menu lets you set the AGC gain so you can have it your way. The hardware noise blanker has not yet been distributed to most field testers except for two who have both reported great results with electric fence or power line problems. However, we all have the DSP noise blanker function available. I have had some personal experience with this. CW DX'er on 40 meters are sadly aware of the over the horizon radar popularly called :The Dragon, apparently radiating from China. It comes on about one out of three mornings, and when it comes on it simply kills the band. Well, I tried the K3 DSP noise blanker, which allows the operator to set the level of intensity. I started cranking it in and lo and behold, the Dragon virtually disappeared. I could still tell it was there but it was no longer a factor in copying weak stations, and with no noticeable artifacts. I switched it out and the Dragon was right back there obliterating the band. Trouble is, other people on the band lacking the K3 Noise Blanker still get chased off the band. After it came on all the DX disappeared, except for two Japanese stations ragchewing, obviously with strong enough signals for each other to not have a problem. They were S4 here and perfect copy with the K3 DSP noise blanker. I switched it off and they got blasted away. Back on and they were easy copy. I am anticipating great things this winter from the noise blanker when North American stations are typically suffering from the Dragon while long path European and Middle East stations are not hearing it at all. The K3 definitely will require a bit of study to use the huge number of operator options in it - it is indeed a feature rich radio. But it can be used in a simplistic manner if desired, or the operator can exercise all the bells and whistles. Wayne has promised to write Quick Start guides for each mode to get the operator up and running quickly, and has also promised an
RE: [Elecraft] K3/K2 and N1MM logger
In anticipation of my K3 with N1MM logger, I would like to build any necessary interfaces (keying, amplifier, computer control, etc.). I have heard that the interfacing is similar if not the same as the K2, but I don't have a K2. So, I would like to know how you are interfacing your K2 to N1MM. I don't mean I built a serial cable myself or I recommend xyz's brand. I would like to know more about your configurations, like whether you are using a footswitch to key the K2 which then keys an amplifier. My first big intended use of my K3 is in an SSB contest/MM environment with amplifiers, (if I get it in time for CQWW SSB, I am not complaining, I just want to be prepared so I can use it!) I only have 4 or 5 weeks before I am traveling for the contest, so I want to get building! Reply to me direct or to the list. Thanks. 1. Standard serial cable, DE9S-DE9P, for rig control by PC. 2.a. Custom Top Ten DX Doubler cable for Mic/Key/PTT/Headphones. I took their generic cable with a DIN plug on one end for the DXD and pigtails on the other end. Wired in the four plugs: Mic (3.5mm mono phone), Key (1/4 stereo phone), PTT, (RCA Phono), Headphone (3.5mm stereo phone). 2.b. Alternatively, plug your Mic, Key, PTT (footswitch, etc.) and Headphones directly into the K3. For example, the Heil headsets plug directly into the rear panel Mic and headphone (with a 1/4 to 3.5mm adapter) jacks, or via the Heil Kenwood adapter to the front panel Mic connector and headphone jack. 3. Custom AuxBus FSK/PTT cable, DE15P with two cables to DE9 plugs, one for the KRC2 band decoder and the other for the PC serial port (FSK PTT). 4. Standard RCQ Phono M-M cable for amplifier keying. 5. Standard 3.5mm stereo phone cable for sound card input, for digital mode decoding. Also use a Y-adapter to drive a hardware decoder in parallel. 6. APP power cable (production units will have this supplied but you need to add a connector or terminals on the power supply end to match your 12 VDC supply. 7. Ground buss to 6-32 thumb screw on K3 rear panel. 8. Antenna connection, PL259. 9. RX antenna connection, BNC. 10. RX antenna out connection to second receiver for A/B testing, BNC. 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
