Re: [Elecraft] K3S audio board for K3 upgrade?
I agree with Vic - I want minimal AGC action, only kicking in on the strongest signals to keep the audio level below the ear's attenuation reflex (see http://n1eu.com/K3NA_rx_audio.pdf ) I have my threshold set at 14 (along with AF Gain at approx 9 o'clock and RF Gain adjusted so I can just hear band noise). (btw, you might try mysettings if you ever experience pileup mush when on the receiving end of packet pileups). 73, Barry N1EU On Tue, Mar 22, 2016 at 5:29 AM, Vic Rosenthal wrote: > "Too much noise" might mean the AGC threshold is low. One way to adjust it > is to set it so that AGC does not activate on band noise (of course it's > different on different bands/times). I have mine set to 12. I want AGC to > do as little as possible except protect my ears. > > Vic 4X6GP/K2VCO > > > On 21 Mar 2016, at 11:11 PM, lstavenhagen > wrote: > > > > Another BTW, I'm definitely not asserting any _distortion_ of the > signals or > > tones in either radio. Both my K3 and K3S are giving pure clean tones and > > voices. My complaints are only centering around (what I believe to be > only) > > the equalization in the audio, particularly the mid/high frequency noise. > > Though as I said the K2 audio is a tough act to follow and I'm a bit > spoiled > > by it. > > > > The only time I have any impurities at all are with agressive settings of > > the noise blanker or DSP with certain types of wide-band noise, which is > > entirely expected. > > > > So just want to clarify that I'm not describing any distortion products > at > > all. Just aging hearing mostly hi hi.. > > > > 73, > > LS > > W5QD > > > > > > > > -- > > View this message in context: > http://elecraft.365791.n2.nabble.com/K3S-audio-board-for-K3-upgrade-tp7615346p7615423.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 k2vco@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 n1eu.ba...@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] Elecraft K3 interferes with IC-2820???
RF is getting into your equipment. RF split cores on all leads into your 2820 should solve the problem. from my iPad > On Mar 21, 2016, at 9:55 PM, John Freed wrote: > > When I operate on SSB, any frequency at 100 + watts the display of my IC-2820 > signal strength meters almost peg out on both sides of the display. When i > operate QRP (5 w on cw, 7097Khz there is no indication. When I use my > IC-746 PRO at 100 Watts on the same antenna there is no indication on the > IC-2820 signal strength indicators. All of the Elecraft equipment is factory > assembled. > > I have checked my coax cabling from the K3 to the KAT200 to the KPA500. I > use a single point station ground for everything (both rigs). Any ideas?? > > 73, > > John, KX6F > __ > 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 k2cm.geo...@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] K3S audio board for K3 upgrade?
I had a 480 and did not care for the sort of pinched up audio compared to say the 850. I am using a couple of 6 by 9 speakers in enclosures on the K3, one on each side of the stereo and the sound is just fine. As they say, opinions vary and have so many variables like speakers, what/how/where you operate, physical hearing anomalies, etc. that audio reviews are just about useless. - Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/K3S-audio-board-for-K3-upgrade-tp7615346p7615445.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] latest K2 serial #?
KC6CNN wrote > They K2 might be old school, but you got to love the sound they have with > CW. It is so easy on my ears. It's even better if you fix the horrible distortion in the sidetone! It was so bad that I found it difficult to zero-beat stations by ear. TF3MA mod: http://www.raunvis.hi.is/~matti/TF3MA/sidetone_tf3ma.html KT5X addendum: http://mailman.qth.net/pipermail/elecraft/2006-November/061425.html 73, Bill W4ZV -- View this message in context: http://elecraft.365791.n2.nabble.com/latest-K2-serial-tp7615395p7615446.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] K3S audio board for K3 upgrade?
Using a couple old Radio Shack "Minimus" speakers, I find the K3s to be the best sounding and easiest to listen to radio I have ever had. I agree, the TS-2000 as well as the TS-480, while an excellent mobile rig, does in fact roll off the higher frequencies too much for my antique ears. This started to happen around the time Kenwood went to digital demodulation instead of analog circuitry. I was on one of the nets the other day using my K3s and noticed the net control station was particularly hard to understand. I thought my hearing had gone or maybe I had set some parameter incorrectly. Then I looked at the panadapter display. There was a very pronounced peak in his audio around 300 hz and practically no energy past about 800Hz. No distortion, just a widely skewed audio passband. It was a boatanchor radio, so there was something obviously wrong somewhere as everyone else sounded great. My gut feel is that the K3s IS an improvement over the K3 in regard to the recovered audio. 73, Charlie k3ICH -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of ke9uw Sent: Tuesday, March 22, 2016 9:30 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3S audio board for K3 upgrade? I had a 480 and did not care for the sort of pinched up audio compared to say the 850. I am using a couple of 6 by 9 speakers in enclosures on the K3, one on each side of the stereo and the sound is just fine. As they say, opinions vary and have so many variables like speakers, what/how/where you operate, physical hearing anomalies, etc. that audio reviews are just about useless. - Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/K3S-audio-boa rd-for-K3-upgrade-tp7615346p7615445.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 pin...@erols.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] K3S audio board for K3 upgrade?
I am not much of a "poster", but this thread has had my close attention. I guess even though I have been hamming for over 60yrs, I had somehow grown to believe that speakers for voice communication or CW, for that matter, were very NON- critical. In recent years I have come to a very much DIFFERENT opinion. For close to 10yrs my 2m SSB rig was an Icom 746Pro. I loved the audio out of that rig. It had a 2m SSB only TX issue that Icom could not resolve after multiple trips back for repair. I sold it and bought a Kenwood TS2000. Swapped the rigs out and was dismayed at how horrible the rec audio sounded out of the 2000. That was with the same Motorola 2way speaker that I had used for years with the 746Pro! I mean horrible! I have quite a collection of the Motorola speakers and trying them one at a time, I found one that I could live with, not quite as good as the Pro but ok. Boy that 2000 was fussy about speakers. Fall of 2009 when I added a K3 to the operating position, I found a similar "fussyness", when it came to speaker selection. I was NOT satisfied with the Motorola speaker that I had used happily with a IC-735 for many years. Speaker selection seem "critical" just like the 2000. That coupled with how one sets the Shift/ Width/Hi-Low cut make huge differences in the way the radio sounds (obvious). Huge variability with the Shift/ Width/Hi-Low combined with mode and filter. WE HAVE CONTROL of these variables, they are not predetermined. I can make the K3 unpleasant to listen to with some combinations, no question. Last month a K3s entered the picture and again I was trying about every speaker I had. Trying to find one that sounded as good as the K3 / Motorola speaker combo. None of my Motorola speakers came close. In the end I found a speaker from a failed power speaker system that I had relegated to the garage. I very much like the sound of that speaker and the K3s. I use RX equalization AFTER I find a speaker that I can live with. I know that in this time of my life, my ears are not what they were decades ago. I suspect that not only do I have known losses, but I may have certain frequency ranges that may be ANNOYING as well. I know back in my HiFi / Stereo days with vacuum tube amplifiers, speaker selection was pretty simple for me. When I transitioned to solid state amps, not so much. To anyone who dislikes the sound of your K3 or K3s, my experience is try LOTs of different speakers. I saw huge differences, not subtle, but HUGE. I'll bet you can find one that will work satisfactorily. These solid state AF amplifiers just may be more fussy about that transducer that is attached than what some of us would expect. 73 Bill K0AWU From: ke9uw To: elecraft@mailman.qth.net Sent: Tuesday, March 22, 2016 8:30 AM Subject: Re: [Elecraft] K3S audio board for K3 upgrade? I had a 480 and did not care for the sort of pinched up audio compared to say the 850. I am using a couple of 6 by 9 speakers in enclosures on the K3, one on each side of the stereo and the sound is just fine. As they say, opinions vary and have so many variables like speakers, what/how/where you operate, physical hearing anomalies, etc. that audio reviews are just about useless. - Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/K3S-audio-board-for-K3-upgrade-tp7615346p7615445.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 cqbi...@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] K3S audio board for K3 upgrade?
Behringer MS40 outstanding with my K3, no RFI problems either. 73, Deni - F5VJC On 22 March 2016 at 16:36, Bill Davis via Elecraft wrote: > I am not much of a "poster", but this thread has had my close attention. > I guess even though I have been hamming for over 60yrs, I had somehow grown > to believe that speakers for voice communication or CW, for that matter, > were very NON- critical. In recent years I have come to a very much > DIFFERENT opinion. > For close to 10yrs my 2m SSB rig was an Icom 746Pro. I loved the audio > out of that rig. It had a 2m SSB only TX issue that Icom could not resolve > after multiple trips back for repair. I sold it and bought a Kenwood > TS2000. Swapped the rigs out and was dismayed at how horrible the rec audio > sounded out of the 2000. That was with the same Motorola 2way speaker that > I had used for years with the 746Pro! I mean horrible! I have quite a > collection of the Motorola speakers and trying them one at a time, I found > one that I could live with, not quite as good as the Pro but ok. Boy that > 2000 was fussy about speakers. > Fall of 2009 when I added a K3 to the operating position, I found a > similar "fussyness", when it came to speaker selection. I was NOT satisfied > with the Motorola speaker that I had used happily with a IC-735 for many > years. Speaker selection seem "critical" just like the 2000. That coupled > with how one sets the Shift/ Width/Hi-Low cut make huge differences in the > way the radio sounds (obvious). Huge variability with the Shift/ > Width/Hi-Low combined with mode and filter. WE HAVE CONTROL of these > variables, they are not predetermined. I can make the K3 unpleasant to > listen to with some combinations, no question. > > Last month a K3s entered the picture and again I was trying about every > speaker I had. Trying to find one that sounded as good as the K3 / Motorola > speaker combo. None of my Motorola speakers came close. In the end I found > a speaker from a failed power speaker system that I had relegated to the > garage. I very much like the sound of that speaker and the K3s. > I use RX equalization AFTER I find a speaker that I can live with. I > know that in this time of my life, my ears are not what they were decades > ago. I suspect that not only do I have known losses, but I may have certain > frequency ranges that may be ANNOYING as well. > I know back in my HiFi / Stereo days with vacuum tube amplifiers, speaker > selection was pretty simple for me. When I transitioned to solid state > amps, not so much. > > To anyone who dislikes the sound of your K3 or K3s, my experience is try > LOTs of different speakers. I saw huge differences, not subtle, but HUGE. > I'll bet you can find one that will work satisfactorily. These solid state > AF amplifiers just may be more fussy about that transducer that is attached > than what some of us would expect. > > 73 Bill K0AWU > > > > From: ke9uw > To: elecraft@mailman.qth.net > Sent: Tuesday, March 22, 2016 8:30 AM > Subject: Re: [Elecraft] K3S audio board for K3 upgrade? > > I had a 480 and did not care for the sort of pinched up audio compared to > say > the 850. > I am using a couple of 6 by 9 speakers in enclosures on the K3, one on each > side of the stereo and the sound is just fine. As they say, opinions vary > and have so many variables like speakers, what/how/where you operate, > physical hearing anomalies, etc. that audio reviews are just about useless. > > > > - > Chuck, KE9UW > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/K3S-audio-board-for-K3-upgrade-tp7615346p7615445.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 cqbi...@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 foxfive@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] Elecraft K3 interferes with IC-2820???
On Tue,3/22/2016 4:50 AM, george allen wrote: RF is getting into your equipment. While this is not the only possible cause, it's likely. Other possible causes include a bad piece of coax or bad DC wiring. RF split cores on all leads into your 2820 should solve the problem. If the problem is simple overload of the 2820, what is needed is NOT simply slipping a split core over the coax from the 2820, but rather multiple turns of the coax through a #31 or #43 Fair-Rite core. That could be a split core or a toroid. If it's a split core, five turns is a good start for 40-10M, one or two more if the problem is from 75M. If it's a toroid, I would start with 5 turns for 20-10, 7 turns for 40-15, 10 turns for 80-20. Also, think about antenna locations. Are the HF antennas and 2M antennas close together? Separating them a bit could help. And the HF antennas should all have a multi-turn coax choke at their feedpoint (that is, up in the air). RF interference is NOT solved by a connection to earth. RF interference CAN be solved or reduced by bonding together every piece of gear in the shack with short, fat copper. That combination of chassis DOES need a bond to all other grounds in the building, both for safety and for reduction of hum, buzz, and RFI. And even though John said he had "checked" all the coax, a bad piece of coax (either the cable or the shield connections) should be suspected as a possible cause. Study http://k9yc.com/GroundingAndAudio.pdf for lots of detail on this. And study k9yc.com/RFI-Ham.pdf for a tutorial on how RF gets into equipment, how ferrite chokes work, and how many turns on which ferrite cores to use for different situations. 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] K3S audio board for K3 upgrade?
On Tue,3/22/2016 7:58 AM, Charlie T, K3ICH wrote: There was a very pronounced peak in his audio around 300 hz and practically no energy past about 800Hz. No distortion, just a widely skewed audio passband. It was a boatanchor radio, so there was something obviously wrong somewhere as everyone else sounded great. Yes, this is one of the most common causes of lousy SSB audio. Here's a tutorial I wrote for the most recent issue of the National Contest Journal. k9yc.com/ContestAudio.pdf 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
[Elecraft] KX3: Antenna disconnected while transmitting question
Being a knucklehead, I tried transmitting briefly with RMS Express, and forget to connect my antenna to the KX3. Transmit power was set to 15W. I have the internal tuner installed. What's the likelihood that damage may have resulted? Jeff - kg7hdz __ 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] K3S audio board for K3 upgrade?
On Tue,3/22/2016 8:36 AM, Bill Davis via Elecraft wrote: I use RX equalization AFTER I find a speaker that I can live with. I suspect that the frequency response of the Motorola speakers are carefully shaped for maximum speech intelligibility in a noisy environment, and their response may be peaked a bit in the upper speech range. In the years when those loudspeakers were developed, Motorola was the premier 2-way radio company on the planet, and full of great engineers. IMO, the BEST speakers and headphones for ham radio are those which have FLAT response (that is, equal at all frequencies) within the speech range (100 - 5,000 Hz) and low distortion. If they have wider response (like hi-fi speakers), that's still good. And if their low frequency response is rolled off, that's even better! I would adjust RXEQ WHILE choosing an external speaker, tweaking settings for each one as you try it. If, for example, peaky response of a particular loudspeaker bothers you but it's a good quality (low distortion) loudspeaker, RXEQ can be used to reduce that peak to make your ear/brain happy. 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] K3S audio board for K3 upgrade?
two more cents - are we rich, yet? Couple more comments on K3 audio quality and etc. The MOT metal mobile speakers were designed for FM mobile and did sound good. I don't have any so have not tried marrying one to a K3. SSB sounds different than FM, especially full quieted FM. Installed a lot of Micors, Mitrek, Syntors, etc. I did note the difference in sound when I went from the old FT-847 to the K3. Did take a little time to adjust to "its" sound. I have made a couple adjustments in the AGC attack with subtle changes in the sound. But boy did it hear better on HF! The full spectrum response of the SONY MDR-V600 stereo headset is nicest. I often run bw down to as low as 2.1 KHz on SSB (2.8-KHz filter) and that reduces white noise level. SNR is directly proportional to bw. So that improves the SNR. Of course in a crowded band it also reduces QRM. HF QRM is not so bad here as it must be in civilized areas. Year's ago I ran off the grid on batteries and had S0 noise floor on 75m phone using a TS-180S and dipole. I could really hear the weak one's. Now its more likely S5 noise floor (different radio - different s-meter - on the grid!). Not sure upgrading my K3 audio board would make enough difference for me. Any guess on cost and difficulty of installation? I have yet to install my new synth boards - too busy building 2m amplifiers. It will be interesting to see what difference that will make. I think audio quality is too personal to provide universal solution. In the old day's choosing a stereo or speakers, I would go to an up-scale shop in Hollywood or Beverly Hills to chose the equipment as they had lavish sound rooms - then head back to West LA discount stores to buy one. I found JBL were the best to my ears. 73, Ed - KL7UW, AL7EB (1982), KN8MWA (1958) 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
Re: [Elecraft] K3S audio board for K3 upgrade?
On 3/22/2016 1:30 PM, Jim Brown wrote: > IMO, the BEST speakers and headphones for ham radio are those which have FLAT response (that is, equal at all frequencies) within the speech range (100 - 5,000 Hz) and low distortion. If they have wider response (like hi-fi speakers), that's still good. And if their low frequency response is rolled off, that's even better! I've found "Pyle 3" Mini Cube" speakers excellent for the K3. Not only are they small (about 3 5/8" x 3 5/8" x 4 1/2") their response is noticeably rolled off below 100 Hz - and, I suspect somewhat below 200 Hz. These "front facing" speakers are a treat with the K3 and most other rigs I've had a chance to try them with ... and they even manage to make the "flat to zero Hz" ESSB fools sound reasonable. 73, ... Joe, W4TV __ 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] KX3 POWER
Does anyone know what firm ware upgrade allows 15 watts for the KX3?I thought I had upgraded with the latest but still have 12 watts output 73! Tomy KF7GC AZ STM NM AZ Section Net ORS, www.atenaz.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] KX3: Antenna disconnected while transmitting question
got it answered. duh. kg7hdz > On Mar 22, 2016, at 10:28, Thorpe, Jeffrey wrote: > > Being a knucklehead, I tried transmitting briefly with RMS Express, and > forget to connect my antenna to the KX3. Transmit power was set to 15W. I > have the internal tuner installed. What's the likelihood that damage may have > resulted? > > Jeff - kg7hdz > __ > 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 jtho...@liberty.edu __ 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] KX3 Power
I have For Sale a very nice working KAT100 external auto tuner for the K2. This tuner will tune just about anything. It integrates very nice with the K2. It comes with the correct cables for K2 integration with your computer for Cat control, power cord, and the manual.$200. shipped conusa.Paypal preferred. 73! Tomy KF7GC AZ STM NM AZ Section Net ORS, www.atenaz.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
[Elecraft] FS KAT100
I have For Sale a very nice working KAT100 external auto tuner for the K2. This tuner will tune just about anything. It integrates very nice with the K2. It comes with the correct cables for K2 integration with your computer for Cat control, power cord, and the manual.$200. shipped conusa.Paypal preferred. 73! Tomy KF7GC AZ STM NM AZ Section Net ORS, www.atenaz.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] KX3 POWER
From: http://www.elecraft.com/KX3/KX3_software.htm MCU 2.38 POWER OUT NOW 15 WATTS MAX, 80-20 M: On 80-20 meters, the PWR control can now be set as high as 15 W (max is still 12 W on other bands). Supply voltage must be over 12.8 V on key-down as indicated by the KX3’s voltage display (tap DISP, rotate VFO B). Note: The KX3 will automatically reduce power as required if current, SWR, or temperature is excessive, or if supply voltage is too low. If a band other than 80-20 m is selected, power output will be cut back to 12 W max. It must then be manually set above 12 W after switching to 80-20 m. Odds are it's the Voltage: this is what I usually run into. On Tue, Mar 22, 2016 at 2:25 PM, Tomy Ivan via Elecraft < elecraft@mailman.qth.net> wrote: > Does anyone know what firm ware upgrade allows 15 watts for the KX3?I > thought I had upgraded with the latest but still have 12 watts output 73! > Tomy KF7GC > AZ STM > NM AZ Section Net > ORS, www.atenaz.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 sean.patrick.dono...@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] K3S audio board for K3 upgrade?
I so agree. What I use are a pair of speakers with a truly flat response all the way from 80 Hz to 22 KHz but extreme overkill...: Mackie HR824 powered Studio monitors. They are perfect to me and extremely flat. I already owned them because I used to do recording. In this vein, if you can find a cheap studio monitor on fleabay or wherever, you will surely love it with your K3s/K3. 73, Gary KA1J > IMO, the BEST speakers and headphones for ham radio are those which have > FLAT response (that is, equal at all frequencies) within the speech > range (100 - 5,000 Hz) and low distortion. If they have wider response > (like hi-fi speakers), that's still good. And if their low frequency > response is rolled off, that's even better! > > I would adjust RXEQ WHILE choosing an external speaker, tweaking > settings for each one as you try it. If, for example, peaky response of > a particular loudspeaker bothers you but it's a good quality (low > distortion) loudspeaker, RXEQ can be used to reduce that peak to make > your ear/brain happy. > > 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] KX3: Antenna disconnected while transmitting question
None. Transmitting into a high SWR (such as no antenna connected) will result in the power amplifier shutting down to protect itself as long as the condition exists. Hook up an antenna or dummy load. You should see full power output. Elecraft has gone to great lengths to protect all of their rigs from such events. 73, Ron AC7AC -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Thorpe, Jeffrey Sent: Tuesday, March 22, 2016 10:27 AM To: elecraft@mailman.qth.net Subject: [Elecraft] KX3: Antenna disconnected while transmitting question Being a knucklehead, I tried transmitting briefly with RMS Express, and forget to connect my antenna to the KX3. Transmit power was set to 15W. I have the internal tuner installed. What's the likelihood that damage may have resulted? Jeff - kg7hdz __ 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 r...@cobi.biz __ 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] K3S audio board for K3 upgrade?
On Tue,3/22/2016 1:34 PM, Gary Smith wrote: What I use are a pair of speakers with a truly flat response all the way from 80 Hz to 22 KHz but extreme overkill...: Mackie HR824 powered Studio monitors. Yes, excellent AF response, very nice for recording, but massive overkill. I have a pair as well. BUT -- they are also RFI dogs. Keying a 5W 2M talkie across the room will cause their woofers to move enough that you'll clearly see it, and they're also susceptible at some HF frequencies. 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] K3S audio board for K3 upgrade?
> On Mar 21, 2016, at 9:21 AM, Jim Brown wrote: > > … both Yamaha CM500 and Sony MDR7506. The Sony headphones are widely used in > recording studios, and the sound of the CM500 is pretty close in sound > quality. The CM500 is fine for communication use, but maybe not for music. When my Grado SR60 headphones died after fifteen years, I tried using the CM500’s for a while. That didn’t work. I stopped listening until I got a new pair of Grado headphones. I upgraded to the SR225e. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ 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] latest K2 serial #?
The dates of the two sites mentioned are pretty old. I imagine that any such mods or similar changes were incorporated in later K2's. Is this the case? ...robert On 03/22/2016 14:06, Bill W4ZV wrote: KC6CNN wrote They K2 might be old school, but you got to love the sound they have with CW. It is so easy on my ears. It's even better if you fix the horrible distortion in the sidetone! It was so bad that I found it difficult to zero-beat stations by ear. TF3MA mod: http://www.raunvis.hi.is/~matti/TF3MA/sidetone_tf3ma.html KT5X addendum: http://mailman.qth.net/pipermail/elecraft/2006-November/061425.html 73, Bill W4ZV -- View this message in context: http://elecraft.365791.n2.nabble.com/latest-K2-serial-tp7615395p7615446.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 rc...@verizon.net -- Robert G Strickland, PhD ABPH - KE2WY rc...@verizon.net.usa Syracuse, New York, USA __ 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] latest K2 serial #?
Robert, Yes, those two mods are old, and apply only to the A level boards (below SN 3000). There have been improvements in the K2 sidetone incorporated into the B level boards, and are also included with the A to B mod kit. The changes added a 47k resistor in series with C24 (R11 for the B level boards) and a shielded 82mH inductor across pins 7 and 10 of RP5. The sidetone is still not a pure sine wave, but it is close if your sidetone pitch is between 500 and 700 Hz. Those old mods would be applicable to unmodified A level boards but re-design of the circuits would be required for the B level boards and A level boards already modified with the A to B upgrade kit. 73, Don W3FPR On 3/22/2016 5:52 PM, Robert G Strickland wrote: The dates of the two sites mentioned are pretty old. I imagine that any such mods or similar changes were incorporated in later K2's. Is this the case? __ 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] K3S audio board for K3 upgrade?
This has been an interesting thread to which I have experimented a bit more and found the AGC setting recommendations from a couple of posters to be very valuable, and Eric's suggestions on BW settings to be a nice compliment to play with. Although, my ears still like a little HF, I like the sound of a BW from 100hz to 2.7khz for SSB and usually the 500hz filter set to 300hz with DSP. I now have AGC THR set to max and AGC SLP set to 0. I also set RX EQ to flat and use hi/lo cut when needed. Really cuts down on the high frequency hash I get from this qth. I leave the AGC settings the same for SSB and CW and play with BW and cut between the two modes, depending on conditions. I've never ever put any stock into any manufacturers built in speakers. They are there cause they have to be :) For the K3S I use a combination of a pair of Polk Audio 5 1/4" book shelf speakers (60hz-24kz) and Pyle Pro 3" mini cube speakers (90hz -18khz), per channel, and the sound is crisp and clear audio. And, both speaker sets are black to match the K3S and all together for all 4 speakers cost was $75.00 and change. The AGC settings were a big game changer to these old ears. 73 Gene, N9TF K3S 10057 -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown Sent: Tuesday, March 22, 2016 4:11 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3S audio board for K3 upgrade? On Tue,3/22/2016 1:34 PM, Gary Smith wrote: > What I use are a pair of speakers with a truly flat response all the > way from 80 Hz to 22 KHz but extreme overkill...: Mackie HR824 powered > Studio monitors. Yes, excellent AF response, very nice for recording, but massive overkill. I have a pair as well. BUT -- they are also RFI dogs. Keying a 5W 2M talkie across the room will cause their woofers to move enough that you'll clearly see it, and they're also susceptible at some HF frequencies. 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 n...@comcast.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] K3S audio board for K3 upgrade?
Gene (and all), Yes, the AGC settings do help a lot. The K3/K3S has enough gain that often the AGC is activated on the atmospheric noise in the band. However, I think your chosen AGC settings are a bit extreme for general use, but if your ears tell you it is good for you, then keep those settings and the rest of this post is for any others interested. I would encourage first turning the preamp off to minimize the band noise - of course the need for a preamp or not will be band dependent. I see little use for the preamp on 160, 80, 60, 40 and 30 meters, and with the K3, the preamp on 20 meters is "iffy". You may want to use the attenuator on 160 and 80 meters, and maybe even 60 meters. Use your ears, and the band noise will vary from location to location. Since those settings are per band, once you determine the proper preamp and attenuator settings for each band, they will be set the same way when returning to that band. So the preamp and attenuator settings are the first order of business. After that, attack the AGC Threshold and Slope using the information at my website www.w3fpr.com "noisy K3" article as a guide. Finally, use the RX EQ settings to roll off the higher frequencies - again, trust your ears - what is helpful for one may not work for anyone else. The K3/K3S has a lot of things that can be customized to the individual user. It is usable 'right out of the box', but can (and should be) customized for your individual preferences. I agree completely with several other comments that the best speakers and headphones are those which give a flat response. Flat response "Hi-Fi" speakers and headphones work quite well. Use the controls in the K3/K3S (mainly RX EQ) to tailor the sound. If you use speakers that have peaks and adjust the RX EQ to those peaky speakers, when you use headphones, the RX EQ will be wrong for them. By using flat response speakers and headphones, you should enjoy the same response from the speakers and the headphones. 73, Don W3FPR On 3/22/2016 6:32 PM, Gene Gabry wrote: This has been an interesting thread to which I have experimented a bit more and found the AGC setting recommendations from a couple of posters to be very valuable, and Eric's suggestions on BW settings to be a nice compliment to play with. Although, my ears still like a little HF, I like the sound of a BW from 100hz to 2.7khz for SSB and usually the 500hz filter set to 300hz with DSP. I now have AGC THR set to max and AGC SLP set to 0. I also set RX EQ to flat and use hi/lo cut when needed. Really cuts down on the high frequency hash I get from this qth. I leave the AGC settings the same for SSB and CW and play with BW and cut between the two modes, depending on conditions. __ 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] K3S audio board for K3 upgrade?
Great advice. Mine, from one who has done this unsuccessfully, and then with advice, done it successfully, GO SLOW. This means small changes to one parameter and some listening time before another change. The changes to the various AGC parameters will have subtle effects, not all of which will be apparent on the first signal you listen to. The K3 is incredibly configurable with multiple parameters, and the number of combinations is huge. You need to creep up on it. The right combo for you may differ between SSB and CW. Try 75 [above 3800] at night ... it's crowded and probably somewhat noisy [you can ignore most of the content, just go for the sound of the signal :-))]. On CW, I found DX pileups and pretended I was the DX tuning around the pile. I had pretty much given up on the AGC as too complex and was going with the stock, out-of-the-box settings until I got this advice. You can start with the stock settings or someone who believes they've achieved nirvana, but yours will depend on you. Nobody hears the same you do and only you will know. Just go slow and you'll find your sweet spot, I did. 73, Fred K6DGW - Northern California Contest Club - CU in the Cal QSO Party 1-2 Oct 2016 - www.cqp.org On 3/22/2016 4:00 PM, Don Wilhelm wrote: So the preamp and attenuator settings are the first order of business. After that, attack the AGC Threshold and Slope using the information at my website www.w3fpr.com "noisy K3" article as a guide. __ 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
