Re: [Elecraft] Is Kenwood listening?
On 9/21/2021 12:58 PM, Andy Durbin wrote: I have been personally involved with the investigation of several TS-590S issues, either as the principal investigator/reporter, or supporting someone else who found the problem. Kenwood fixed all these issues with firmware updates, in one case issuing an update within a couple of weeks of receiving the first report. Great news both here and from Wes. Kenwood is certainly the JA mfr who has done the most to minimize clicks, their rigs test well at ARRL Labs. In general, I found their user interface the most intuitive on the rigs I've owned, especially the TH-F6A, which is still my favorite talkie. Their new D74 digital talkie is the exception -- I couldn't do much of anything without digging out the printouts I'd made of the pdf manual, and it died just after warranty ended. The last of their HF rigs I've owned was a pair of TS850s. 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] KX144 (kind of)
Sorry, misread the original post. Nonetheless, the 6N2 is a nice rig. Mike, N8TTR Michael Chowning, O.F.M. Holy Family Friary P.O. Box 98 3027 Pearl Street Oldenburg, IN 47036 mike.chown...@franciscan.org > On Sep 21, 2021, at 2:48 PM, Michael Chowning > wrote: > > Ten Tec produced a 2m and 6m rig, model 526, popularly known as the “6N2”. > They are very hard to procure, as most owners rarely sell them. > Mike, N8TTR > >> On Sep 21, 2021, at 2:35 PM, Julia Tuttle wrote: >> >> As someone who's firmly in the small apartment + portable target market for >> the KX3, I'd be interested in such a radio *if* it had 70cm as well so it >> could do double duty working local repeaters too. >> >> On Tue, Sep 21, 2021, 14:20 Samir Popaja wrote: >> >>> Hello Elecraft friends, >>> >>> I wonder if Elecraft will ever make a 2m radio like old Kenwood TR-751 A, >>> YAESU FT-290R or something like that (format) ... of course with K3S >>> contest similar performance and at least 25W out? >>> >>> What do you think, is there interest from Elecraft or the market for that? >>> >>> 73 'Samir, sm7vzx >>> __ >>> 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 ju...@juliatuttle.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 mike.chown...@franciscan.org > > > > Michael Chowning, O.F.M. > Holy Family Friary > P.O. Box 98 > 3027 Pearl Street > Oldenburg, IN 47036 > (812) 212-5936 (Cellphone) > mike.chown...@franciscan.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 mike.chown...@franciscan.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
[Elecraft] Is Kenwood listening?
I would say they are. Kenwood not only provided a hardware mod for early TS-590S power overshoot issues but they have also responded to other customer service difficulty reports with firmware updates. I have been personally involved with the investigation of several TS-590S issues, either as the principal investigator/reporter, or supporting someone else who found the problem. Kenwood fixed all these issues with firmware updates, in one case issuing an update within a couple of weeks of receiving the first report. I wrote my first KAT500 defect report July 2018. There is still no released firmware update to correct this problem or any of the others I have reported since then. I understand that Elecraft is a small company with limited resources. I also appreciate the personal interaction I have had with the KAT500 and KPA500 firmware developers. That sort of interaction simply is not possible with Kenwood. However, the bottom line is that Kenwood fixed the reported problems and Elecraft hasn't yet. Andy, k3wyc __ 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] KPA1500 Power Level
Buried in this thread: https://groups.io/g/TS-890/topic/kenwood_ts_890s_audio_chain/74266007?p=Created%2C%2C%2C20%2C2%2C0%2C0=1 is this: Dear Sir, Please accept our excuses for keeping you waiting. As I mentioned last time due to the COVID-19 our staff in Japan is till the end of this month only working part time. As a consequence there are some major delays. Meanwhile I received some information that the symptom is not a software bug but a hardware related issue caused by low level noise mixing in the circuit. Our engineers are now checking the predictability and serviceability of the hardware modification. The modification information will be available within a few weeks. We keep you informed. Best regards, Geert Van Muylem General Manager Service, ON5GVM JVCKENWOOD Service Europe" Seems to me they are listening. Wes N7WS On 9/21/2021 10:44 AM, Jim Brown wrote: On 9/21/2021 6:26 AM, Bob McGraw wrote: Kenwood, ICOM, and Yaesu...are you listening? Of course not. Elecraft (and in the old days, Ten Tec) are/were unique in that regard. 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 wes_n...@triconet.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] KX144 (kind of)
What do those radios have that would be a must-have for you in a replacement? On Tue, Sep 21, 2021, 15:01 Phil Kane wrote: > On 9/21/2021 11:35 AM, Julia Tuttle wrote: > > > As someone who's firmly in the small apartment + portable target market > for > > the KX3, I'd be interested in such a radio*if* it had 70cm as well so it > > could do double duty working local repeaters too. > > Will it / can it replace my ICOM IC-2720 mobile and IC-2830 "base"? > Doubtful > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > > __ > Elecraft mailing list > 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 ju...@juliatuttle.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] KX144 (kind of)
On 9/21/2021 11:35 AM, Julia Tuttle wrote: As someone who's firmly in the small apartment + portable target market for the KX3, I'd be interested in such a radio*if* it had 70cm as well so it could do double duty working local repeaters too. Will it / can it replace my ICOM IC-2720 mobile and IC-2830 "base"? Doubtful 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list 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] KPA1500 Power Level
On 9/21/2021 6:48 AM, Salvatore ["Ted"] K2QMF wrote: have a Yeasu FTdx5000 and an FTdx101MP. Have you looked at splatter for these rigs? I don't know about these models specifically, but other recent vintage Yaesu rigs have had awful splatter, as heard/measured on my K3/P3/SVGA. Any time I tune SSB, I see QSOs where some stations are nice and clean and others are splattering only 20 dB down on both sides of their signal. And when I've talked to a few of those ops with dirty signals, they've been barefoot Yaesu rigs, or the splatter was still there when they turned off their amp. 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] KX144 (kind of)
Sadly you're probably not wrong, as evidenced by the Baofeng sitting next to my KX3. On Tue, Sep 21, 2021, 14:52 Jim Brown wrote: > On 9/21/2021 11:35 AM, Julia Tuttle wrote: > > As someone who's firmly in the small apartment + portable target market > for > > the KX3, I'd be interested in such a radio*if* it had 70cm as well so it > > could do double duty working local repeaters too. > > I'd be VERY surprised to see such a radio from Elecraft - as a > businessman, I'd view it as a death wish. They're a much smaller company > than the JA companies that dominate that market. As it is, the $40 > Chinese talkies are clobbering those JA companies. > > 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 ju...@juliatuttle.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] KX144 (kind of)
On 9/21/2021 11:35 AM, Julia Tuttle wrote: As someone who's firmly in the small apartment + portable target market for the KX3, I'd be interested in such a radio*if* it had 70cm as well so it could do double duty working local repeaters too. I'd be VERY surprised to see such a radio from Elecraft - as a businessman, I'd view it as a death wish. They're a much smaller company than the JA companies that dominate that market. As it is, the $40 Chinese talkies are clobbering those JA companies. 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] KX144 (kind of)
Ten Tec produced a 2m and 6m rig, model 526, popularly known as the “6N2”. They are very hard to procure, as most owners rarely sell them. Mike, N8TTR > On Sep 21, 2021, at 2:35 PM, Julia Tuttle wrote: > > As someone who's firmly in the small apartment + portable target market for > the KX3, I'd be interested in such a radio *if* it had 70cm as well so it > could do double duty working local repeaters too. > > On Tue, Sep 21, 2021, 14:20 Samir Popaja wrote: > >> Hello Elecraft friends, >> >> I wonder if Elecraft will ever make a 2m radio like old Kenwood TR-751 A, >> YAESU FT-290R or something like that (format) ... of course with K3S >> contest similar performance and at least 25W out? >> >> What do you think, is there interest from Elecraft or the market for that? >> >> 73 'Samir, sm7vzx >> __ >> 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 ju...@juliatuttle.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 mike.chown...@franciscan.org Michael Chowning, O.F.M. Holy Family Friary P.O. Box 98 3027 Pearl Street Oldenburg, IN 47036 (812) 212-5936 (Cellphone) mike.chown...@franciscan.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] KPA1500 Power Level
Nope didn't miss your post and comments. While I was not model
specific, Yaesu is noted to be a key click generator due to overshoot
and keying ramp timing. Jim, K9YC also referenced this in his
message. {So it isn't just me!} Maybe the 2 models you have are
clean, but most Yaesu radios have issues of this type. I have a friend
and neighbor and club member that has 3 different Yaesu radios. Two are
FTdx3000 radios. They all have it. He's sent his to Yaesu for
service. They return it saying found nothing wrong. I took one of his
radios and measured the artifact with my spectrum analyzer. I then sent
the radio and the data from the spectrum analyzer to Yaesu. There
response was "oh, must be the way you measured it". Sorry, but in my
opinion, they are a bull shit company. I would never use a Yaesu radio
if it was provided to me free of charge. They do have good receivers
however.
73
Bob, K4TAX
On 9/21/2021 1:26 PM, Salvatore ["Ted"] K2QMF wrote:
Bob,
I guess you missed my post!!
Yeasu Does NOT have the overshoot issue!!
K2QMF
On 9/21/2021 2:14:12 PM, Bob McGraw wrote:
As to the attenuator, a 6 dB attenuator rated at 100 watts is no big
deal. The challenge is to switch the attenuator in and out between TX
and RX modes.
A better solution for all is to use a transceiver which DOES NOT have
the problem. As Jim, K9YC indicated, many do and require either
operating system/firmware changes or in some cases, hardware changes.
I'm with him on this.
I can attest to the fact, my K3S, my Tentec Omni VII and Tentec Eagle DO
NOT have the overshoot issue. The issue can be resolved.
ICOM, Kenwood, Yaesu.are you listening?
73
Bob, K4TAX
Message: 8
Date: Mon, 20 Sep 2021 09:21:15 -0700
From: jerry
To: Bob McGraw
Cc:elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA1500 Power Level
Message-ID:<6f2e7001d988f150b7f0f39517b3d...@tr2.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
On 2021-09-19 19:47, Bob McGraw wrote:
> Based on personal experience and observations with another ham radio
> brand and company, it is most often the case that power overshoot is
> likely to occur when the transceiver is operated at reduced power.?
> Namely to drive a power amplifier.??
*** So I guess the obvious fix is to operate the exciter at full power
and
insert an attenuator in line. It would be serious piece of equipment
though.
- Jerry KF6VB
__
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Re: [Elecraft] KX144 (kind of)
As someone who's firmly in the small apartment + portable target market for the KX3, I'd be interested in such a radio *if* it had 70cm as well so it could do double duty working local repeaters too. On Tue, Sep 21, 2021, 14:20 Samir Popaja wrote: > Hello Elecraft friends, > > I wonder if Elecraft will ever make a 2m radio like old Kenwood TR-751 A, > YAESU FT-290R or something like that (format) ... of course with K3S > contest similar performance and at least 25W out? > > What do you think, is there interest from Elecraft or the market for that? > > 73 'Samir, sm7vzx > __ > 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 ju...@juliatuttle.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] KPA1500 Power Level
Bob, I guess you missed my post!! Yeasu Does NOT have the overshoot issue!! K2QMF On 9/21/2021 2:14:12 PM, Bob McGraw wrote: As to the attenuator, a 6 dB attenuator rated at 100 watts is no big deal. The challenge is to switch the attenuator in and out between TX and RX modes. A better solution for all is to use a transceiver which DOES NOT have the problem. As Jim, K9YC indicated, many do and require either operating system/firmware changes or in some cases, hardware changes. I'm with him on this. I can attest to the fact, my K3S, my Tentec Omni VII and Tentec Eagle DO NOT have the overshoot issue. The issue can be resolved. ICOM, Kenwood, Yaesu.are you listening? 73 Bob, K4TAX Message: 8 Date: Mon, 20 Sep 2021 09:21:15 -0700 From: jerry To: Bob McGraw Cc:elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA1500 Power Level Message-ID:<6f2e7001d988f150b7f0f39517b3d...@tr2.com> Content-Type: text/plain; charset=UTF-8; format=flowed On 2021-09-19 19:47, Bob McGraw wrote: > Based on personal experience and observations with another ham radio > brand and company, it is most often the case that power overshoot is > likely to occur when the transceiver is operated at reduced power.? > Namely to drive a power amplifier.?? *** So I guess the obvious fix is to operate the exciter at full power and insert an attenuator in line. It would be serious piece of equipment though. - Jerry KF6VB __ 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 k2...@juno.com [d53b21fb-1cac-4fc6-8651-939932eb067f] Sponsored by https://www.newser.com/?utm_source=part_medium=uol_campaign=rss_taglines_more All Eyes on How Beijing Handles a Financial Landmine http://thirdpartyoffers.juno.com/TGL3141/614a23d89b6ba23d63612st01vuc1 Key Lines From Biden's Speech to UN General Assembly http://thirdpartyoffers.juno.com/TGL3141/614a23d8ba51723d63612st01vuc2 As Petito Case Continues, Another Frustrating Search http://thirdpartyoffers.juno.com/TGL3141/614a23d8d941b23d63612st01vuc3 __ 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] KX144 (kind of)
Hello Elecraft friends, I wonder if Elecraft will ever make a 2m radio like old Kenwood TR-751 A, YAESU FT-290R or something like that (format) ... of course with K3S contest similar performance and at least 25W out? What do you think, is there interest from Elecraft or the market for that? 73 'Samir, sm7vzx __ 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] KPA500 Clicking Noise
It is thermal expansion and contraction as the metal temperature changes. When I first got mine, new from Elecraft, it had a case of the snap, crackle, and pop syndrome. After a few weeks the issue disappeared. Haven't heard it since and the amp is used every day. 73 Bob, K4TAX Message: 9 Date: Mon, 20 Sep 2021 14:27:41 -0700 From: Dana Roode K6NR To: Elecraft Reflector Subject: [Elecraft] KPA500 Clicking Noise Message-ID: Content-Type: text/plain; charset="UTF-8" I hadn't used my KPA500 for awhile, but I put it on the air recently. It's working fine with my K3, but after it warms up - 40 degrees C or so - I start to hear a faint clicking noise. It is coming from the vicinity of the fan and heat sinks. There is a click every 10 seconds or so, I think whether I am transmitting or not. Fan control is working fine, and I bumped up the lowest speed to help keep the amp cooler. Let me know if anyone has seen this before. Meanwhile, I will keep using it and see how it goes. Dana, K6NR __ 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] KPA1500 Power Level
As to the attenuator, a 6 dB attenuator rated at 100 watts is no big deal. The challenge is to switch the attenuator in and out between TX and RX modes. A better solution for all is to use a transceiver which DOES NOT have the problem. As Jim, K9YC indicated, many do and require either operating system/firmware changes or in some cases, hardware changes. I'm with him on this. I can attest to the fact, my K3S, my Tentec Omni VII and Tentec Eagle DO NOT have the overshoot issue. The issue can be resolved. ICOM, Kenwood, Yaesu.are you listening? 73 Bob, K4TAX Message: 8 Date: Mon, 20 Sep 2021 09:21:15 -0700 From: jerry To: Bob McGraw Cc:elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA1500 Power Level Message-ID:<6f2e7001d988f150b7f0f39517b3d...@tr2.com> Content-Type: text/plain; charset=UTF-8; format=flowed On 2021-09-19 19:47, Bob McGraw wrote: Based on personal experience and observations with another ham radio brand and company, it is most often the case that power overshoot is likely to occur when the transceiver is operated at reduced power.? Namely to drive a power amplifier.?? *** So I guess the obvious fix is to operate the exciter at full power and insert an attenuator in line. It would be serious piece of equipment though. - Jerry KF6VB __ 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] KPA1500 Power Level
On 9/21/2021 6:26 AM, Bob McGraw wrote: Kenwood, ICOM, and Yaesu...are you listening? Of course not. Elecraft (and in the old days, Ten Tec) are/were unique in that regard. 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] A suggested VFO parking place
>From what I can tell, 7040 has been co-opted by WSPR beacons. If I listen there, I can hear little except their garble. -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Mon, Sep 20, 2021 at 9:22 PM Al Lorona wrote: > If you regard QRP ARCI as a de facto authority on QRP in the US, they > recommend 7030, and they call it a 'center of activity' rather than a > calling frequency. I take that to mean we should imagine a Gaussian > distribution of activity above and below this center. I imagine a standard > deviation of perhaps 500 Hz, but that's just me. > > > I grew up thinking it was 7040 as well, but it has changed more than once > in recent times. > > > Al W6LX/4 > > > >>>On Saturday, September 4, 2021, 01:38:00 PM EDT, Dan Presley < > n7...@arrl.net> wrote: > > >>>The longstanding QRP frequency for 40 has been 7040-European 7030. > > __ > 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 ard...@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] Atwood Rice
If Atwood Rice is in this group, please email Pro Audio Engineering at: i...@proaudioeng.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] KPA1500 Power Level
I have a Yeasu FTdx5000 and an FTdx101MP. Both are driving Elecraft KPA1500's. The driver power is reduced to about 35 Watts on both! I have no over shoot with either rig! Do not use ALC!! Lower the drive power. No issues! Works Great... K2QMF On 9/21/2021 9:38:49 AM, jerry wrote: On 2021-09-21 06:26, Bob McGraw wrote: > Not really, 6 dB of attenuation rated at 100 watts. The challenge is > switching it out on receive. *** Not so bad if you build it INTO the linear - so it would be inside the existing relays. But yeah - it's a shame to waste all that power and heat the linear more. - Jerry KF6VB > > But the real challenge is to buy a transceiver that doesn't overshoot > at reduced power. Neither my K3S, my Tentec Eagle, nor my Omni VII > have the issue. Other companies have or need to update their > operating system such that reduced power does not overshoot. > > Kenwood, ICOM, and Yaesu...are you listening? > > 73 > > Bob, K4TAX > > > On 9/20/2021 11:21 AM, jerry wrote: >> On 2021-09-19 19:47, Bob McGraw wrote: >>> Based on personal experience and observations with another ham radio >>> brand and company, it is most often the case that power overshoot is >>> likely to occur when the transceiver is operated at reduced power. >>> Namely to drive a power amplifier. >> >> *** So I guess the obvious fix is to operate the exciter at full power >> and >> insert an attenuator in line. It would be serious piece of equipment >> though. >> >> - Jerry KF6VB >> >> >> __ 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 k2...@juno.com [75f54ddd-3e05-4076-a7ad-ec31dd880315] Choose to be safer online. Opt-in to Cyber Safety with NortonLifeLock. Get Norton 360 with LifeLock starting at $9.95/month.* https://store.netzero.net/account/showService.do?serviceId=nz-nLifeLock_source=mktg_medium=taglines_campaign=nzlifelk_launch_content=tag995=A23457 __ 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] KPA1500 Power Level
On 2021-09-21 06:26, Bob McGraw wrote: Not really, 6 dB of attenuation rated at 100 watts. The challenge is switching it out on receive. *** Not so bad if you build it INTO the linear - so it would be inside the existing relays. But yeah - it's a shame to waste all that power and heat the linear more. - Jerry KF6VB But the real challenge is to buy a transceiver that doesn't overshoot at reduced power. Neither my K3S, my Tentec Eagle, nor my Omni VII have the issue. Other companies have or need to update their operating system such that reduced power does not overshoot. Kenwood, ICOM, and Yaesu...are you listening? 73 Bob, K4TAX On 9/20/2021 11:21 AM, jerry wrote: On 2021-09-19 19:47, Bob McGraw wrote: Based on personal experience and observations with another ham radio brand and company, it is most often the case that power overshoot is likely to occur when the transceiver is operated at reduced power. Namely to drive a power amplifier. *** So I guess the obvious fix is to operate the exciter at full power and insert an attenuator in line. It would be serious piece of equipment though. - Jerry KF6VB __ 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] KPA1500 Power Level
Not really, 6 dB of attenuation rated at 100 watts. The challenge is switching it out on receive. But the real challenge is to buy a transceiver that doesn't overshoot at reduced power. Neither my K3S, my Tentec Eagle, nor my Omni VII have the issue. Other companies have or need to update their operating system such that reduced power does not overshoot. Kenwood, ICOM, and Yaesu...are you listening? 73 Bob, K4TAX On 9/20/2021 11:21 AM, jerry wrote: On 2021-09-19 19:47, Bob McGraw wrote: Based on personal experience and observations with another ham radio brand and company, it is most often the case that power overshoot is likely to occur when the transceiver is operated at reduced power. Namely to drive a power amplifier. *** So I guess the obvious fix is to operate the exciter at full power and insert an attenuator in line. It would be serious piece of equipment though. - Jerry KF6VB -- This email has been checked for viruses by AVG. https://www.avg.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
