KPA1500 LO GAIN FAULT
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Well I spoke too soon.
I still have a KPA1500 problem. I am not getting the LO GAIN FAULT and I do have RF out but I cannot get 1500 watts output with 50 watts drive. I connected the KPA1500 to a dummy load and loaded the the latest version of the KPA1500 utility. With 20 watts drive the utility displays the following readings. INPUT 20W PA VOLTAGE 53V PA CURRENT 19A EFFICIENCY 21% POWER OUTPUT 254W With 50 watts drive the utility displays the following readings. INPUT 50W PA VOLTAGE 53V PA CURRENT 34A EFFICIENCY 40% POWER OUTPUT 715W Ed ______________________________________________________________ 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 |
Re: KPA1500 LO GAIN FAULT
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Hi Ed,
I or one of our support engineers will contact you directly after we review the config file you sent us. Most likely by either late today or early tomorrow. 73, Eric /elecraft.com/ On 5/1/2019 2:01 PM, Ed gilliland wrote: > Well I spoke too soon. > > I still have a KPA1500 problem. I am not getting the LO GAIN FAULT and I do > have RF out but I cannot get 1500 watts output with 50 watts drive. > > I connected the KPA1500 to a dummy load and loaded the the latest version of > the KPA1500 utility. > > With 20 watts drive the utility displays the following readings. > > INPUT 20W > > PA VOLTAGE 53V > > PA CURRENT 19A > > EFFICIENCY 21% > > POWER OUTPUT 254W > > > > With 50 watts drive the utility displays the following readings. > > > INPUT 50W > > PA VOLTAGE 53V > > PA CURRENT 34A > > EFFICIENCY 40% > > POWER OUTPUT 715W > > Ed > > ______________________________________________________________ > 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 ______________________________________________________________ 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 |
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Okay Eric, thanks.
On 5/1/2019 17:31, Eric Swartz - WA6HHQ, Elecraft wrote: > Hi Ed, > > I or one of our support engineers will contact you directly after we > review the config file you sent us. Most likely by either late today > or early tomorrow. > > 73, > Eric > /elecraft.com/ > > On 5/1/2019 2:01 PM, Ed gilliland wrote: >> Well I spoke too soon. >> >> I still have a KPA1500 problem. I am not getting the LO GAIN FAULT >> and I do have RF out but I cannot get 1500 watts output with 50 watts >> drive. >> >> I connected the KPA1500 to a dummy load and loaded the the latest >> version of the KPA1500 utility. >> >> With 20 watts drive the utility displays the following readings. >> >> INPUT 20W >> >> PA VOLTAGE 53V >> >> PA CURRENT 19A >> >> EFFICIENCY 21% >> >> POWER OUTPUT 254W >> >> >> >> With 50 watts drive the utility displays the following readings. >> >> >> INPUT 50W >> >> PA VOLTAGE 53V >> >> PA CURRENT 34A >> >> EFFICIENCY 40% >> >> POWER OUTPUT 715W >> >> Ed >> >> ______________________________________________________________ >> 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 > 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 |
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In reply to this post by Eric Swartz - WA6HHQ
Eric,
I haven't received a call from Elecraft Support. On 5/1/2019 17:31, Eric Swartz - WA6HHQ, Elecraft wrote: > Hi Ed, > > I or one of our support engineers will contact you directly after we > review the config file you sent us. Most likely by either late today > or early tomorrow. > > 73, > Eric > /elecraft.com/ > > On 5/1/2019 2:01 PM, Ed gilliland wrote: >> Well I spoke too soon. >> >> I still have a KPA1500 problem. I am not getting the LO GAIN FAULT >> and I do have RF out but I cannot get 1500 watts output with 50 watts >> drive. >> >> I connected the KPA1500 to a dummy load and loaded the the latest >> version of the KPA1500 utility. >> >> With 20 watts drive the utility displays the following readings. >> >> INPUT 20W >> >> PA VOLTAGE 53V >> >> PA CURRENT 19A >> >> EFFICIENCY 21% >> >> POWER OUTPUT 254W >> >> >> >> With 50 watts drive the utility displays the following readings. >> >> >> INPUT 50W >> >> PA VOLTAGE 53V >> >> PA CURRENT 34A >> >> EFFICIENCY 40% >> >> POWER OUTPUT 715W >> >> Ed >> >> ______________________________________________________________ >> 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 > 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 |
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