Re: [Elecraft] DB9 connectors
You might try expanding your product search to include the term DE9 rather than DB9. The E is the shell size and the electronics parts world usually references it this way. Worth a try anyway. John, kx4o On 7/25/2015 9:33 AM, Raymond METZGER wrote: connectors is too big. I looked at many supplier web pages but didn't find a thinner DB9 connector without bolts. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Cwskimmer Bandwidth and more
Skimmer info. This guy got it to work Rake . Original message From: Doug Ellmore d...@ellmore.net Date: 07/24/2015 3:42 PM (GMT-08:00) To: elecraft@mailman.qth.net Subject: [Elecraft] Cwskimmer Bandwidth and more Don, cwskimmer settings allows up to 196khz. I have seen it decode way more than 48k. With the subreciever tap you did for me, I have had separate cwskimmer sessions running on each receiver in the k3. I then am alerted of a needed station on another band. I use win4k3 for the main control and panadapter display, and then nap3 for the second pandapter display. There are frequency polling issues with the subreciever, but if I get an alert in skimmer, I can easily find the right frequency and work them. 73 Doug NA1DX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jbol...@outlook.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K2 rework eliminators - mic board
I just acquired a K2 again after years without one and wanted to order one of the mic option boards from unpcbs.com. That particular board is no longer available, but the website seems to indicate that there might be a future run of the board. Unfortunately, there's no contact info at the site so can't communicate my interest to them. Anyone have any information on a new board or know how to contact the owners? 73, Floyd - K8AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] db9/de9 shells
here some are http://www.ebay.com/itm/Lot10-Metalized-D-Sub-DB9pin-DE9-Shielded-Plastic-Hood-Cover-Housing-Shell-screw-/291511166355?hash=item43df6b6593 -- Live Long and Prosper __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K2 rework eliminators - mic board
Floyd, I just did some snooping around their site and found this under contact us, http://www.unpcbs.com/us/#contact. Hope you find one. I built my K2 with both the unpcbs Rework Eliminator and the IMA. Makes life a lot easier. Gary On Sun, Jul 26, 2015 at 5:35 AM, Floyd Sense fl...@k8ac.net wrote: I just acquired a K2 again after years without one and wanted to order one of the mic option boards from unpcbs.com. That particular board is no longer available, but the website seems to indicate that there might be a future run of the board. Unfortunately, there's no contact info at the site so can't communicate my interest to them. Anyone have any information on a new board or know how to contact the owners? 73, Floyd - K8AC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to kj...@kj7rt.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] DB9 connectors
Hi everybody, First, many thanks to George AI4VZ, Knut AB2TC, Harry NK9R, Jim K9YC and Brian K3KO, for their prompt mails (five answers within 2 1/4 hours !). Nobody told me that what I'm looking for does exist I will adopt the Hands-on attitude and make my own DB9 connector, leaving the screws and the shells aside. If this doesn't work in a reliable way, I will move to the USB adapter. I doubt Hewlett Packard will accept to cancel the sale and give my money back. I let you know... Many thanks again Ray, F4FNT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 200 Hz 5-pole filter
Since Sherwood's Dynamic Range Narrow Spaced measurement is of great interest to CW operators, it only makes sense to make the measurement using a CW filter, optional or not. The measurement would be meaningless to CW operators if made using the stock sideband filter. 73, Bill - NA5DX On 7/25/2015 1:47 PM, elecraft-requ...@mailman.qth.net wrote: Message: 27 Date: Sat, 25 Jul 2015 11:04:20 -0700 (MST) From: XE3/K5ENS via Elecraftelecraft@mailman.qth.net To:elecraft@mailman.qth.net Subject: Re: [Elecraft] 200 Hz 5-pole filter Message-ID:1437847460881-7605322.p...@n2.nabble.com Content-Type: text/plain; charset=us-ascii Apples and oranges. The K3 is still no 2 with the 200 Hz 5-pole filter. You just can no longer buy the radio with that filter. I have always found it a little strange that Sherwood never stated that the filters used in his test were optional on the K3? If the K3 was tested with the stock filter it may make it into the top 10. Don't get me wrong I have a K3S on order. I'm just looking at the data __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft CW Net Announcement
Good Morning, Please join us this afternoon and evening. 14050 kHz at 2200z Sunday (3 PM PDT Sunday) 7045 kHz at 0100z Monday (6 PM PDT Sunday) 73, Kevin. KD5ONS - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: Actual bandwidth of Inrad 500hz 8-pole filter?
This has some filter plots for various K3 filters: http://www.nccc.cc/archived_meetings/pdf/K3%20Filters,%20Jan%202009.pdf 73, Scott N9AA On 7/26/15 3:28 PM, Joe Subich, W4TV wrote: http://www.elecraft.com/K3/K3_filter_plots.htm does not list the *INRAD* 500 Hz (or 1500 Hz) filter(s). Those filters are only available directly from INRAD (http://www.inrad.net/home.php?cat=140) - items 727 and 728. 73, ... Joe, W4TV On 2015-07-26 3:06 PM, Wayne Burdick wrote: There are accurate filter bandwidth plots on our website for each filter. Wayne N6KR On Jul 26, 2015, at 12:01 PM, Joe Subich, W4TV li...@subich.com wrote: Looking through the other rigs that use Inrad 8 pole filters in the 8 - 9 MHz range, those filters for which curves are shown have 6 dB bandwidths in the 580 - 595 Hz range. 73, ... Joe, W4TV On 2015-07-26 1:21 PM, Dick via Elecraft wrote: Would anyone know the actual bandwidth of the Inrad Model 728 500hz 8-pole filter? Such as, the 250hz 8-pole has an actual bandwidth of 370hz, and the 400hz 8-pole filter has an actual bandwidth of 450hz. (no graph is shown for the Model 728 like it is for the others) Thanks 73, Dick- K9OM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K2 rework eliminators - mic board
It is also quite easy to make a reconfigurable microphone header yourself for the K2. Go to http://la3za.blogspot.no/p/la3za-unofficial-guide-to-elecraft-k2_28.html#KSB2 and search for 'microphone header' for ideas. - Sverre, LA3ZA K2 #2198, K3 #3391, LA3ZA Blog: http://la3za.blogspot.com, LA3ZA Unofficial Guide to K2 modifications: http://la3za.blogspot.com/p/la3za-unofficial-guide-to-elecraft-k2.html -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-rework-eliminators-mic-board-tp7605345p7605362.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Cwskimmer Bandwidth and more
My understanding is that Skimmer allows greater then 24 kHz bandwidth only in situations where the receiver is not tuned (fixed local oscillator frequency). In the normal situation where it is monitoring the IF output of a receiver, it is limited to 24 kHz. You can fool Skimmer into thinking it is a fixed-tune receiver, but performance is likely to suffer unless the receiver is parked on one frequency. Alan N1AL On 07/26/2015 04:36 AM, Jim Bolit wrote: Skimmer info. This guy got it to work Rake . Original message From: Doug Ellmore d...@ellmore.net Date: 07/24/2015 3:42 PM (GMT-08:00) To: elecraft@mailman.qth.net Subject: [Elecraft] Cwskimmer Bandwidth and more Don, cwskimmer settings allows up to 196khz. I have seen it decode way more than 48k. With the subreciever tap you did for me, I have had separate cwskimmer sessions running on each receiver in the k3. I then am alerted of a needed station on another band. I use win4k3 for the main control and panadapter display, and then nap3 for the second pandapter display. There are frequency polling issues with the subreciever, but if I get an alert in skimmer, I can easily find the right frequency and work them. 73 Doug NA1DX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jbol...@outlook.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@sonic.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] DB9 connectors
The second letter in the connector name is the size. B size connectors have room for 25 pins. 9 pin connectors are E size. DE9, not DB9. Easier to find what you want if you use the right name. 73 -- Lynn On 7/26/2015 9:29 AM, Raymond METZGER wrote: Nobody told me that what I'm looking for does exist __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K2 rework eliminators - mic board
Unless you have a variety of microphones from various transceiver manufacturers *and* like to swap microphones often, I don't see much sense in the IMA. Just wire the K2 microphone jack for the Elecraft configuration and re-wire the microphone plugs for that pinout. OTOH, if you still have transceivers that use those microphones and cannot easily re-wire the mic plugs, then the IMA makes sense if you want to swap the mics around. Most hams pick one microphone and use it with the K2, so there is normally no need to swap the IMA connections - just wire the normal K2 microphone configuration for the chosen microphone. On 7/26/2015 11:23 AM, Gary Marklund wrote: Floyd, I just did some snooping around their site and found this under contact us, http://www.unpcbs.com/us/#contact. Hope you find one. I built my K2 with both the unpcbs Rework Eliminator and the IMA. Makes life a lot easier. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: Actual bandwidth of Inrad 500hz 8-pole filter?
There are accurate filter bandwidth plots on our website for each filter. Wayne N6KR On Jul 26, 2015, at 12:01 PM, Joe Subich, W4TV li...@subich.com wrote: Looking through the other rigs that use Inrad 8 pole filters in the 8 - 9 MHz range, those filters for which curves are shown have 6 dB bandwidths in the 580 - 595 Hz range. 73, ... Joe, W4TV On 2015-07-26 1:21 PM, Dick via Elecraft wrote: Would anyone know the actual bandwidth of the Inrad Model 728 500hz 8-pole filter? Such as, the 250hz 8-pole has an actual bandwidth of 370hz, and the 400hz 8-pole filter has an actual bandwidth of 450hz. (no graph is shown for the Model 728 like it is for the others) Thanks 73, Dick- K9OM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3: Actual bandwidth of Inrad 500hz 8-pole filter?
Would anyone know the actual bandwidth of the Inrad Model 728 500hz 8-pole filter? Such as, the 250hz 8-pole has an actual bandwidth of 370hz, and the 400hz 8-pole filter has an actual bandwidth of 450hz. (no graph is shown for the Model 728 like it is for the others) Thanks 73, Dick- K9OM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: Actual bandwidth of Inrad 500hz 8-pole filter?
Looking through the other rigs that use Inrad 8 pole filters in the 8 - 9 MHz range, those filters for which curves are shown have 6 dB bandwidths in the 580 - 595 Hz range. 73, ... Joe, W4TV On 2015-07-26 1:21 PM, Dick via Elecraft wrote: Would anyone know the actual bandwidth of the Inrad Model 728 500hz 8-pole filter? Such as, the 250hz 8-pole has an actual bandwidth of 370hz, and the 400hz 8-pole filter has an actual bandwidth of 450hz. (no graph is shown for the Model 728 like it is for the others) Thanks 73, Dick- K9OM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: Actual bandwidth of Inrad 500hz 8-pole filter?
http://www.elecraft.com/K3/K3_filter_plots.htm does not list the *INRAD* 500 Hz (or 1500 Hz) filter(s). Those filters are only available directly from INRAD (http://www.inrad.net/home.php?cat=140) - items 727 and 728. 73, ... Joe, W4TV On 2015-07-26 3:06 PM, Wayne Burdick wrote: There are accurate filter bandwidth plots on our website for each filter. Wayne N6KR On Jul 26, 2015, at 12:01 PM, Joe Subich, W4TV li...@subich.com wrote: Looking through the other rigs that use Inrad 8 pole filters in the 8 - 9 MHz range, those filters for which curves are shown have 6 dB bandwidths in the 580 - 595 Hz range. 73, ... Joe, W4TV On 2015-07-26 1:21 PM, Dick via Elecraft wrote: Would anyone know the actual bandwidth of the Inrad Model 728 500hz 8-pole filter? Such as, the 250hz 8-pole has an actual bandwidth of 370hz, and the 400hz 8-pole filter has an actual bandwidth of 450hz. (no graph is shown for the Model 728 like it is for the others) Thanks 73, Dick- K9OM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3: 630m amplifiers
With the recent expansion of use to 630m for the K3s and upgraded K3 which only transmit at nom 1mw, a question arises: Is there interest in a linear amplifier taking 1mw drive to produce either 25w or 100w? I pick those two power outputs because with typically inefficient antennas on 630m 25w = 1w ERP and 100w = 5w ERP (approx). These two ERP are mentioned in the WARC-12 band approval and FCC as possible max allowed power levels. Currently the ARRL Experimental Group is approved at 20w ERP but there are not many stations running that in the group. I run 100w with 0.1mw drive from my K3 for approx 3w ERP. 1mw is typical output for mixers so the amp would be usable by low-power transverters, as well. I am wondering what kind of interest there would be for a linear amp that could be driven by the K3s/K3? I would probably have an optional Rx preamp in such a package. No idea of cost at this juncture as its just in maybe status. Wayne has stated to me that Elecraft is not intending to build such due to the limited market. 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 KX3 Memory Editing Utility (revisited yet again)
I have followed previous discussions on the memory editor issues (no support for Mac, etc.) but I missed the answer to the big, big question. The big question is: why is it that the existing Elecraft supported K3 and KX3 utilities do not include a memory editing page built in and supported as a mainline feature. Seems to be a no-brainer to me. I would expect Eric or Wayne to say “Yah, we need that in our utility programs, let’s do it”. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: 630m amplifiers
On 07/26/2015 05:32 PM, Don Wilhelm wrote: Soundcard sourced digital modes are really SSB signals and need a linear amplifier. The one exception might be FSK. It is constant-amplitude so a class C amplifier should be fine. FSK modes include RTTY and I believe WSPR and WSJT. Alan N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: 630m amplifiers
Do we run into the FCC external amplifier 15 dB gain limit here? 73 de dave ab9ca/4 On 7/26/15 7:51 PM, Joe Subich, W4TV wrote: Don, WSPR, JT65 and JT9 are (1 of N tone) FSK modes. They are no different than conventional AFSK (1 of 2) in that the tones are continuous phase, constant amplitude and can be amplified by a class C amplifier without generating undue IMD or clicks. I haven't seen the details of WSQ yet - if it is a multiple simultaneous tone mode it would require a linear amplifier - but the other listed sound card modes are fine with an amplifier that operates in class C (or even a switch mode amplifier so long as the bandpass filter is sufficient). 73, ... Joe, W4TV On 2015-07-26 8:32 PM, Don Wilhelm wrote: Tom, Soundcard sourced digital modes are really SSB signals and need a linear amplifier. 73, Don W3FPR On 7/26/2015 8:25 PM, Tom Azlin W7SUA wrote: Hi Ed. I am more interested in a non-linear class C or higher amp for those bands as was not thinking to run modes that need a linear amp. WSPR, a WSJT mode, WSQ, and the like. 73, tom w7sua Chino Valley AZ On 7/26/2015 1:23 PM, Edward R Cole wrote: With the recent expansion of use to 630m for the K3s and upgraded K3 which only transmit at nom 1mw, a question arises: Is there interest in a linear amplifier taking 1mw drive to produce either 25w or 100w? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ho13d...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: 630m amplifiers
Hi Don and Alan, I was thinking one of the slow multi tone FSK modes that are a single tone at a time. WSQ is in the same class. http://www.qsl.net/zl1bpu/SOFT/WSQ.htm CW would be another mode that would not need a linear amp I think. On the other hand PSK31 would require a linear amp. 73, tom w7sua On 7/26/2015 5:43 PM, Alan wrote: On 07/26/2015 05:32 PM, Don Wilhelm wrote: Soundcard sourced digital modes are really SSB signals and need a linear amplifier. The one exception might be FSK. It is constant-amplitude so a class C amplifier should be fine. FSK modes include RTTY and I believe WSPR and WSJT. Alan N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to t...@w7sua.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft] K3: 630m amplifiers
Umm ... JT65 is MFSK, 1 freq at a time, no different than FSK, just more than 2, 1 at a time. Should be constant envelope, my JT65 sure is on the scope as is my RTTY signal. There may be some 2nd order effects, but Class C should basically work. 73, Fred K6DGW Sparks, NV Don Wilhelm w3...@embarqmail.com wrote: Tom, Soundcard sourced digital modes are really SSB signals and need a linear amplifier. 73, Don W3FPR On 7/26/2015 8:25 PM, Tom Azlin W7SUA wrote: Hi Ed. I am more interested in a non-linear class C or higher amp for those bands as was not thinking to run modes that need a linear amp. WSPR, a WSJT mode, WSQ, and the like. 73, tom w7sua Chino Valley AZ On 7/26/2015 1:23 PM, Edward R Cole wrote: With the recent expansion of use to 630m for the K3s and upgraded K3 which only transmit at nom 1mw, a question arises: Is there interest in a linear amplifier taking 1mw drive to produce either 25w or 100w? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k6...@foothill.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: 630m amplifiers
CW would be another mode that would not need a linear amp I think. No, CW requires a linear amplifier. CW is not constant-amplitude - the amplitude changes every time you open or close the key. A class-C amplifier would mess up the key shaping, causing key clicks. Any true FSK or MSK signal should not be bothered by a non-linear amplifier. The only caveat I can think of is that the amplitude of an AFSK signal may have some ripple on it to the extent that the passband of the transmit crystal filter is not flat. But I doubt that's a significant issue. Alan N1AL On 07/26/2015 06:57 PM, Tom Azlin W7SUA wrote: Hi Don and Alan, I was thinking one of the slow multi tone FSK modes that are a single tone at a time. WSQ is in the same class. http://www.qsl.net/zl1bpu/SOFT/WSQ.htm CW would be another mode that would not need a linear amp I think. On the other hand PSK31 would require a linear amp. 73, tom w7sua On 7/26/2015 5:43 PM, Alan wrote: On 07/26/2015 05:32 PM, Don Wilhelm wrote: Soundcard sourced digital modes are really SSB signals and need a linear amplifier. The one exception might be FSK. It is constant-amplitude so a class C amplifier should be fine. FSK modes include RTTY and I believe WSPR and WSJT. Alan N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to t...@w7sua.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@sonic.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 KX3 Memory Editing Utility (revisited yet again)
My guess would be that a different program author wrote it... :) -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net For MixW support see; http://groups.yahoo.com/neo/groups/mixw/info For Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info For MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Sun, 2015-07-26 at 15:58 -0700, Phil Hystad wrote: I have followed previous discussions on the memory editor issues (no support for Mac, etc.) but I missed the answer to the big, big question. The big question is: why is it that the existing Elecraft supported K3 and KX3 utilities do not include a memory editing page built in and supported as a mainline feature. Seems to be a no-brainer to me. I would expect Eric or Wayne to say “Yah, we need that in our utility programs, let’s do it”. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 200 Hz 5-pole filter
On Sun,7/26/2015 5:33 PM, Bill Breeden wrote: The point I am trying to make is that a K3 with a 2.7 KHz filter and the DSP cranked down to 400 Hz will not perform as well for CW during crowded band conditions as a K3 with a 400 Hz filter. Hi Bill, That point is not lost on anyone, and is the reason that serious contesters use narrow roofing filters. I said exactly that in my earlier response. But the point that you are missing is that the K3, K3S, and KX3 are complete radios with the stock 2.7 kHz 5-pole or 2.8 kHz 8-pole roofing filters, and are comparable to the receivers we have used for as long as I have been a ham (60 years). What's different are 1) the some of the hardware with which those older radios and the K3/K3S/KX3 are built. Our older receivers used physical coils and capacitors in the IF, while these newer ones simulate those Ls and Cs in DSP; 2) the system architecture that Wayne developed (for example, his choice of IF frequencies, his methods of reducing phase noise, keying transients, etc.; and 3) they're a lot better radios that most of those older ones. A ham who doesn't participate in major contests is unlikely to need anything more than the 2.7 or 2.8 kHz roofing filter. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: 630m amplifiers
Hi Tom, It's convenient to think that, but it's wrong. The problem is that neither of those signals are continuous -- both are changed to convey information. Mother nature recognizes a keyed CW waveform as a square wave modulating a carrier. Any waveform more complicated than a continuous carrier has multiple components, and in the case of a square wave or impulse, an infinite number of them. If that waveform is passed through a non-linear amplifier, distortion will be produced. There will be both harmonic and intermodulation distortion. Take a look at slides 13 and 15 in http://k9yc.com/FTDX5000_Report.pdf. Slide 13 is a continuous carrier. The sidebands at -48dBC are probably hum. Now look at Slide 15, which is the same radio transmitting a series of dits. I haven't measured an un-keyed K3 yet, but I suspect it's cleaner, especially with the new synth board. I may get to that this week. Several years ago, some of the serious engineers running RTTY noticed that the K3 running FSK wasn't as clean as when running AFSK. Wayne and the crew did some serious work on the firmware and it's now better. 73, Jim K9YC On Sun,7/26/2015 6:57 PM, Tom Azlin W7SUA wrote: I was thinking one of the slow multi tone FSK modes that are a single tone at a time. WSQ is in the same class. http://www.qsl.net/zl1bpu/SOFT/WSQ.htm CW would be another mode that would not need a linear amp I think. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 200 Hz 5-pole filter
Jim, I disagree. The selected roofing filter is the first IF filter in a K3. You might want to read what Eric and Wayne have to say on the subject at the following link: http://www.elecraft.com/K3/Roofing_Filters.htm 73, Bill - NA5DX *Jim Brown*jim at audiosystemsgroup.commailto:elecraft%40mailman.qth.net?Subject=Re%3A%20%5BElecraft%5D%20200%20Hz%205-pole%20filterIn-Reply-To=%3C55B55B5D.5070800%40audiosystemsgroup.com%3E /Sun Jul 26 18:12:45 EDT 2015/ * Previous message:[Elecraft] 200 Hz 5-pole filter http://mailman.qth.net/pipermail/elecraft/2015-July/219735.html * Next message:[Elecraft] KX3 go kit? http://mailman.qth.net/pipermail/elecraft/2015-July/219676.html * *Messages sorted by:*[ date ] http://mailman.qth.net/pipermail/elecraft/2015-July/date.html#219737[ thread ] http://mailman.qth.net/pipermail/elecraft/2015-July/thread.html#219737[ subject ] http://mailman.qth.net/pipermail/elecraft/2015-July/subject.html#219737[ author ] http://mailman.qth.net/pipermail/elecraft/2015-July/author.html#219737 On Sun,7/26/2015 2:02 PM, Bill Breeden wrote: /Since Sherwood's Dynamic Range Narrow Spaced measurement is of great //interest to CW operators, it only makes sense to make the measurement //using a CW filter, optional or not. The measurement would be //meaningless to CW operators if made using the stock sideband filter. / Not really -- the K3, K3S, and KX3 IF filters are implemented in DSP. The plug-in filters are additional roofing filters that protect the DSP from overload by strong signals outside of their passband. The K3, K3S, and KX3 have very good CW receivers without the optional roofing filters. The roofing filters simply allow them to work very close to very strong signals, AND cascade with the DSP filter to provide additional rejection outside the passband. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 KX3 Memory Editing Utility (revisited yet again)
I'd like to see a feature to save User settings to a file. Only those config items that define the user preferences, not calibration stuff. This would allow an owner of several K3 radios to set them up alike. Also two TX EQ settings; one for front and one for rear. Sent from my iPhone ...nr4c. bill On Jul 26, 2015, at 6:58 PM, Phil Hystad phys...@mac.com wrote: I have followed previous discussions on the memory editor issues (no support for Mac, etc.) but I missed the answer to the big, big question. The big question is: why is it that the existing Elecraft supported K3 and KX3 utilities do not include a memory editing page built in and supported as a mainline feature. Seems to be a no-brainer to me. I would expect Eric or Wayne to say “Yah, we need that in our utility programs, let’s do it”. 73, phil, K7PEH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@widomaker.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: 630m amplifiers
Tom, Soundcard sourced digital modes are really SSB signals and need a linear amplifier. 73, Don W3FPR On 7/26/2015 8:25 PM, Tom Azlin W7SUA wrote: Hi Ed. I am more interested in a non-linear class C or higher amp for those bands as was not thinking to run modes that need a linear amp. WSPR, a WSJT mode, WSQ, and the like. 73, tom w7sua Chino Valley AZ On 7/26/2015 1:23 PM, Edward R Cole wrote: With the recent expansion of use to 630m for the K3s and upgraded K3 which only transmit at nom 1mw, a question arises: Is there interest in a linear amplifier taking 1mw drive to produce either 25w or 100w? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 200 Hz 5-pole filter
Wes, Rob Sherwood's presentation at the following link answers the why question a lot better than I can: http://www.sherweng.com/RochesterMN2009/NC0B-W0DXCC-4dRochester_MN.pdf At the following link, Eric explains why selecting a narrow filter for CW operation in a K3 offers superior performance over selecting a wide (sideband) filter and adjusting the DSP to a narrow bandwidth: http://www.elecraft.com/K3/Roofing_Filters.htm The point I am trying to make is that a K3 with a 2.7 KHz filter and the DSP cranked down to 400 Hz will not perform as well for CW during crowded band conditions as a K3 with a 400 Hz filter. 73, Bill - NA5DX *Wes (N7WS)*wes at triconet.orgmailto:elecraft%40mailman.qth.net?Subject=Re%3A%20%5BElecraft%5D%20200%20Hz%205-pole%20filterIn-Reply-To=%3C55B571C4.1010009%40triconet.org%3E /Sun Jul 26 19:48:20 EDT 2015/ * Previous message:[Elecraft] 200 Hz 5-pole filter http://mailman.qth.net/pipermail/elecraft/2015-July/219737.html * Next message:[Elecraft] 200 Hz 5-pole filter http://mailman.qth.net/pipermail/elecraft/2015-July/219738.html * *Messages sorted by:*[ date ] http://mailman.qth.net/pipermail/elecraft/2015-July/date.html#219744[ thread ] http://mailman.qth.net/pipermail/elecraft/2015-July/thread.html#219744[ subject ] http://mailman.qth.net/pipermail/elecraft/2015-July/subject.html#219744[ author ] http://mailman.qth.net/pipermail/elecraft/2015-July/author.html#219744 Why? On 7/26/2015 2:02 PM, Bill Breeden wrote: ///Since Sherwood's Dynamic Range Narrow Spaced measurement is of great interest //to CW operators, it only makes sense to make the measurement using a CW //filter, optional or not. The measurement would be meaningless to CW operators //if made using the stock sideband filter. 73, Bill - NA5DX / __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 200 Hz 5-pole filter
Agreed (but not meaningless)! The additional narrow cw filters clearly provide a BIG improvement over the wider SSB Filters(e.g., the 400 HZ filter shows a 16 db improvement in 3IMDDR and 35 db improvement in BDR over the stock 2700 Hz SSB Filters). Meaning it is very helpful to cw operators to know how the radio performs with the more narrow cw filters. The ARRL Table in the K3 2009 review shows the figures. Can't tell how the rig would have tested if the DSP was narrowed to, say, 400 HZ while using the wider SSB filter Bob/AA6VB From: Bill Breeden breede...@cableone.net To: elecraft@mailman.qth.net Sent: Sunday, July 26, 2015 2:02 PM Subject: Re: [Elecraft] 200 Hz 5-pole filter Since Sherwood's Dynamic Range Narrow Spaced measurement is of great interest to CW operators, it only makes sense to make the measurement using a CW filter, optional or not. The measurement would be meaningless to CW operators if made using the stock sideband filter. 73, Bill - NA5DX On 7/25/2015 1:47 PM, elecraft-requ...@mailman.qth.net wrote: Message: 27 Date: Sat, 25 Jul 2015 11:04:20 -0700 (MST) From: XE3/K5ENS via Elecraftelecraft@mailman.qth.net To:elecraft@mailman.qth.net Subject: Re: [Elecraft] 200 Hz 5-pole filter Message-ID:1437847460881-7605322.p...@n2.nabble.com Content-Type: text/plain; charset=us-ascii Apples and oranges. The K3 is still no 2 with the 200 Hz 5-pole filter. You just can no longer buy the radio with that filter. I have always found it a little strange that Sherwood never stated that the filters used in his test were optional on the K3? If the K3 was tested with the stock filter it may make it into the top 10. Don't get me wrong I have a K3S on order. I'm just looking at the data __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to bobchor...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 200 Hz 5-pole filter
On Sun,7/26/2015 2:02 PM, Bill Breeden wrote: Since Sherwood's Dynamic Range Narrow Spaced measurement is of great interest to CW operators, it only makes sense to make the measurement using a CW filter, optional or not. The measurement would be meaningless to CW operators if made using the stock sideband filter. Not really -- the K3, K3S, and KX3 IF filters are implemented in DSP. The plug-in filters are additional roofing filters that protect the DSP from overload by strong signals outside of their passband. The K3, K3S, and KX3 have very good CW receivers without the optional roofing filters. The roofing filters simply allow them to work very close to very strong signals, AND cascade with the DSP filter to provide additional rejection outside the passband. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: 630m amplifiers
Don, WSPR, JT65 and JT9 are (1 of N tone) FSK modes. They are no different than conventional AFSK (1 of 2) in that the tones are continuous phase, constant amplitude and can be amplified by a class C amplifier without generating undue IMD or clicks. I haven't seen the details of WSQ yet - if it is a multiple simultaneous tone mode it would require a linear amplifier - but the other listed sound card modes are fine with an amplifier that operates in class C (or even a switch mode amplifier so long as the bandpass filter is sufficient). 73, ... Joe, W4TV On 2015-07-26 8:32 PM, Don Wilhelm wrote: Tom, Soundcard sourced digital modes are really SSB signals and need a linear amplifier. 73, Don W3FPR On 7/26/2015 8:25 PM, Tom Azlin W7SUA wrote: Hi Ed. I am more interested in a non-linear class C or higher amp for those bands as was not thinking to run modes that need a linear amp. WSPR, a WSJT mode, WSQ, and the like. 73, tom w7sua Chino Valley AZ On 7/26/2015 1:23 PM, Edward R Cole wrote: With the recent expansion of use to 630m for the K3s and upgraded K3 which only transmit at nom 1mw, a question arises: Is there interest in a linear amplifier taking 1mw drive to produce either 25w or 100w? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: 630m amplifiers
Not if you build your own is my understanding! 73, tom w7sua On 7/26/2015 5:56 PM, dave wrote: Do we run into the FCC external amplifier 15 dB gain limit here? 73 de dave ab9ca/4 On 7/26/15 7:51 PM, Joe Subich, W4TV wrote: Don, WSPR, JT65 and JT9 are (1 of N tone) FSK modes. They are no different than conventional AFSK (1 of 2) in that the tones are continuous phase, constant amplitude and can be amplified by a class C amplifier without generating undue IMD or clicks. I haven't seen the details of WSQ yet - if it is a multiple simultaneous tone mode it would require a linear amplifier - but the other listed sound card modes are fine with an amplifier that operates in class C (or even a switch mode amplifier so long as the bandpass filter is sufficient). 73, ... Joe, W4TV On 2015-07-26 8:32 PM, Don Wilhelm wrote: Tom, Soundcard sourced digital modes are really SSB signals and need a linear amplifier. 73, Don W3FPR On 7/26/2015 8:25 PM, Tom Azlin W7SUA wrote: Hi Ed. I am more interested in a non-linear class C or higher amp for those bands as was not thinking to run modes that need a linear amp. WSPR, a WSJT mode, WSQ, and the like. 73, tom w7sua Chino Valley AZ On 7/26/2015 1:23 PM, Edward R Cole wrote: With the recent expansion of use to 630m for the K3s and upgraded K3 which only transmit at nom 1mw, a question arises: Is there interest in a linear amplifier taking 1mw drive to produce either 25w or 100w? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ho13d...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to t...@w7sua.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 KX3 Memory Editing Utility (revisited yet again)
On Jul 26, 2015, at 4:09 PM, David Cole d...@nk7z.net wrote: My guess would be that a different program author wrote it... :) — Yes, a different program author wrote it but that does not stop Elecraft from adding it to their utility programs which I think they should do. 73, phil, K7PEH On Sun, 2015-07-26 at 15:58 -0700, Phil Hystad wrote: I have followed previous discussions on the memory editor issues (no support for Mac, etc.) but I missed the answer to the big, big question. The big question is: why is it that the existing Elecraft supported K3 and KX3 utilities do not include a memory editing page built in and supported as a mainline feature. Seems to be a no-brainer to me. I would expect Eric or Wayne to say “Yah, we need that in our utility programs, let’s do it”. 73, phil, K7PEH __ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 KX3 Memory Editing Utility (revisited yet again)
Combining the utility and memory editor is a good suggestion, but Elecraft's owners would have to decide that it's worth the effort and development cost. Since both functions are already available, it's probably not a priority. Just a guess on my part. 73, matt W6NIA On Sun, 26 Jul 2015 16:27:34 -0700, you wrote: My guess would be that a different program author wrote it... :) Yes, a different program author wrote it but that does not stop Elecraft from adding it to their utility programs which I think they should do. 73, phil, K7PEH On Sun, 2015-07-26 at 15:58 -0700, Phil Hystad wrote: I have followed previous discussions on the memory editor issues (no support for Mac, etc.) but I missed the answer to the big, big question. The big question is: why is it that the existing Elecraft supported K3 and KX3 utilities do not include a memory editing page built in and supported as a mainline feature. Matt Zilmer, W6NIA -- Always store beer in a dark place. -R. Heinlein __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 200 Hz 5-pole filter
Why? On 7/26/2015 2:02 PM, Bill Breeden wrote: Since Sherwood's Dynamic Range Narrow Spaced measurement is of great interest to CW operators, it only makes sense to make the measurement using a CW filter, optional or not. The measurement would be meaningless to CW operators if made using the stock sideband filter. 73, Bill - NA5DX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3: 630m amplifiers
Hi Ed. I am more interested in a non-linear class C or higher amp for those bands as was not thinking to run modes that need a linear amp. WSPR, a WSJT mode, WSQ, and the like. 73, tom w7sua Chino Valley AZ On 7/26/2015 1:23 PM, Edward R Cole wrote: With the recent expansion of use to 630m for the K3s and upgraded K3 which only transmit at nom 1mw, a question arises: Is there interest in a linear amplifier taking 1mw drive to produce either 25w or 100w? I pick those two power outputs because with typically inefficient antennas on 630m 25w = 1w ERP and 100w = 5w ERP (approx). These two ERP are mentioned in the WARC-12 band approval and FCC as possible max allowed power levels. Currently the ARRL Experimental Group is approved at 20w ERP but there are not many stations running that in the group. I run 100w with 0.1mw drive from my K3 for approx 3w ERP. 1mw is typical output for mixers so the amp would be usable by low-power transverters, as well. I am wondering what kind of interest there would be for a linear amp that could be driven by the K3s/K3? I would probably have an optional Rx preamp in such a package. No idea of cost at this juncture as its just in maybe status. Wayne has stated to me that Elecraft is not intending to build such due to the limited market. 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to t...@w7sua.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
