Additional KPA1500 amplifier information
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Additional KPA1500 amplifier information
 
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Updated FAQ on the KPA1500:
http://www.elecraft.com/KPA1500/KPA1500%20FAQ%20rev%20A1b.pdf High-resolution front panel photo: http://www.elecraft.com/KPA1500/KPA1500_cropped_hi.jpg High-resolution rear panel photo: http://www.elecraft.com/KPA1500/KPA1500_back_rgb_hi.jpg KPA1500 web page: http://www.elecraft.com/KPA1500/KPA1500.htm * * * Wayne N6KR ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Additional KPA1500 amplifier information
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What about duty cycle? Has a prototype been put through the paces of a
real 48 hour contest? On 4/21/2017 12:30 AM, Wayne Burdick wrote: > Updated FAQ on the KPA1500: > > http://www.elecraft.com/KPA1500/KPA1500%20FAQ%20rev%20A1b.pdf > > High-resolution front panel photo: > > http://www.elecraft.com/KPA1500/KPA1500_cropped_hi.jpg > > High-resolution rear panel photo: > > http://www.elecraft.com/KPA1500/KPA1500_back_rgb_hi.jpg > > KPA1500 web page: > > http://www.elecraft.com/KPA1500/KPA1500.htm > > * * * > > Wayne > N6KR > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Additional KPA1500 amplifier information
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In reply to this post by wayne burdick
Can I assume that the tuner will be operable when the amp is on standby?
Carl Yaffey K8NU Recording studio. [hidden email] 614 268 6353, Columbus OH http://www.carl-yaffey.com http://www.grassahol.com http://www.bluesswing.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Additional KPA1500 amplifier information
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Hi,
The amplifier’s rugged internal ATU can handle full power with load SWR up to 3:1, while a wider matching range is allowed at lower power, including up to 10:1 in standby mode... 73 - Petr, OK1RP
73 - Petr, OK1RP
"Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt |
Re: Additional KPA1500 amplifier information
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In reply to this post by wayne burdick
______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Additional KPA1500 amplifier information
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In reply to this post by charlie carroll
Hi Charlie,
The KPA1500 has been put through its paces in in long RTTY contests, running at full power. We may put an upper bound on key-down time, eventually, but so far we haven’t found it :) 73, Wayne N6KR > On Apr 21, 2017, at 5:17 AM, charlie carroll <[hidden email]> wrote: > > What about duty cycle? Has a prototype been put through the paces of a real 48 hour contest? > > On 4/21/2017 12:30 AM, Wayne Burdick wrote: >> Updated FAQ on the KPA1500: >> >> http://www.elecraft.com/KPA1500/KPA1500%20FAQ%20rev%20A1b.pdf >> >> High-resolution front panel photo: >> >> http://www.elecraft.com/KPA1500/KPA1500_cropped_hi.jpg >> >> High-resolution rear panel photo: >> >> http://www.elecraft.com/KPA1500/KPA1500_back_rgb_hi.jpg >> >> KPA1500 web page: >> >> http://www.elecraft.com/KPA1500/KPA1500.htm >> >> * * * >> >> Wayne >> N6KR >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Additional KPA1500 amplifier information
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In reply to this post by Petr, OK1RP/M0SIS
The ATU in the KPA1500 will handle SWR levels inversely proportional to power output, primarily constrained by reflected power. Eventually the FAQ will spell this out in greater detail.
Suffice to say that we’ll be maximizing flexibility while still ensuring safe operation. Wayne N6KR > On Apr 21, 2017, at 6:46 AM, Petr, OK1RP/M0SIS <[hidden email]> wrote: > > Hi, > The amplifier’s rugged internal ATU can handle full power with load SWR up > to 3:1, while a wider matching range is allowed at lower power, including up > to 10:1 in standby mode... > 73 - Petr, OK1RP > > > > ----- > http://ok1rp.blogspot.com > -- > View this message in context: http://elecraft.365791.n2.nabble.com/Additional-KPA1500-amplifier-information-tp7629664p7629688.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:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Additional KPA1500 amplifier information
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In reply to this post by wayne burdick
Please put me on the list. (K7EMI)
On Thu, 20 Apr 2017, Wayne Burdick wrote: > Updated FAQ on the KPA1500: > > http://www.elecraft.com/KPA1500/KPA1500%20FAQ%20rev%20A1b.pdf > > High-resolution front panel photo: > > http://www.elecraft.com/KPA1500/KPA1500_cropped_hi.jpg > > High-resolution rear panel photo: > > http://www.elecraft.com/KPA1500/KPA1500_back_rgb_hi.jpg > > KPA1500 web page: > > http://www.elecraft.com/KPA1500/KPA1500.htm > > * * * > > Wayne > N6KR > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > -- Hisashi T Fujinaka - [hidden email] BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by wayne burdick
I was chatting last night with a friend in Canada and we were discussing the new KPA1500. He asked if the amp will work on 30m without modification. Wayne?
73, Gary K9GS -------- Original message --------From: Hisashi T Fujinaka <[hidden email]> Date: 4/22/17 10:36 AM (GMT-06:00) To: Wayne Burdick <[hidden email]> Cc: Elecraft Reflector <[hidden email]> Subject: Re: [Elecraft] Additional KPA1500 amplifier information Please put me on the list. (K7EMI) On Thu, 20 Apr 2017, Wayne Burdick wrote: > Updated FAQ on the KPA1500: > > http://www.elecraft.com/KPA1500/KPA1500%20FAQ%20rev%20A1b.pdf > > High-resolution front panel photo: > > http://www.elecraft.com/KPA1500/KPA1500_cropped_hi.jpg > > High-resolution rear panel photo: > > http://www.elecraft.com/KPA1500/KPA1500_back_rgb_hi.jpg > > KPA1500 web page: > > http://www.elecraft.com/KPA1500/KPA1500.htm > > * * * > > Wayne > N6KR > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > -- Hisashi T Fujinaka - [hidden email] BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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The KPA500 does work on 30M and even 5 MHz.
With the per-band setting in the radio, turning on the KPA500 and placing it in OPERATE, the K3 automatically reduces its power to 12W (or whatever) so the KPA500 runs at 200W (or whatever). Switching the amplifier off or to standby and the K3 automatically goes back to 110W or whatever. I've never used it on 5 MHz. 73, Jim N7US -----Original Message----- I was chatting last night with a friend in Canada and we were discussing the new KPA1500. He asked if the amp will work on 30m without modification. Wayne? 73, Gary K9GS ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Gary K9GS
Why not? Do other amps make any concessions for30 m?
My KPA500 puts out whatever power I set. Sent from my iPhone ...nr4c. bill > On Apr 22, 2017, at 12:36 PM, GaryK9GS <[hidden email]> wrote: > > I was chatting last night with a friend in Canada and we were discussing the new KPA1500. He asked if the amp will work on 30m without modification. Wayne? > > > 73, > Gary K9GS > -------- Original message --------From: Hisashi T Fujinaka <[hidden email]> Date: 4/22/17 10:36 AM (GMT-06:00) To: Wayne Burdick <[hidden email]> Cc: Elecraft Reflector <[hidden email]> Subject: Re: [Elecraft] Additional KPA1500 amplifier information > Please put me on the list. (K7EMI) > >> On Thu, 20 Apr 2017, Wayne Burdick wrote: >> >> Updated FAQ on the KPA1500: >> >> http://www.elecraft.com/KPA1500/KPA1500%20FAQ%20rev%20A1b.pdf >> >> High-resolution front panel photo: >> >> http://www.elecraft.com/KPA1500/KPA1500_cropped_hi.jpg >> >> High-resolution rear panel photo: >> >> http://www.elecraft.com/KPA1500/KPA1500_back_rgb_hi.jpg >> >> KPA1500 web page: >> >> http://www.elecraft.com/KPA1500/KPA1500.htm >> >> * * * >> >> Wayne >> N6KR >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> > > -- > Hisashi T Fujinaka - [hidden email] > BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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