I can wait until tomorrow. Won’t bother them on Sunday. The symptom this time is different than last. Last time was amp acting like tuner not tuned. This time showing excessive input power even though actual power is fine.
Let’s see what happens. Dave wo2x Sent from my waxed string and tin cans. > On Apr 27, 2019, at 7:17 PM, Don Wilhelm <[email protected]> wrote: > > Dave, > > Time to contact [email protected]. > Unfortunately, they are only open for the next 45 minutes (unless someone is > working late), so be patient while the support folks enjoy their weekend. > > 73, > Don W3FPR > >> On 4/27/2019 6:48 PM, [email protected] wrote: >> The input too high only happens into a non-resonant load (tuner in circuit). >> Also noticed on 20 now when tuner is in operate there is a 3 dB drop in >> noise floor. >> This is the second time the 3 watt resistor has desoldered itself from the >> board and both times the resistor is discolored. >> Only one RF path from radios through switching into amp input. Amp output >> feeds a 1x4 antenna switch. No other radios transmitting in near proximity. >> Definitely something failed on filter board. >> Dave wo2x >> -----Original Message----- >> From: Paul Baldock <[email protected]> >> Sent: Saturday, April 27, 2019 6:21 PM >> To: [email protected]; [email protected] >> Subject: Re: [Elecraft] KPA-1500 input too high >> Try it in to a dummy load. >> - Paul >> At 02:48 PM 4/27/2019, [email protected] wrote: >>> Hi All, >>> >>> >>> >>> KPA-1500 s/n 423 >>> >>> >>> >>> Operating 80 meter SSB running 20 watts drive with tuner engaged for >>> about >>> 1240 watts out PEP. Remote app shows maximum power handling of 1620 watts. >>> >>> Out of nowhere I got an input power too high alarm @ 191 watts! The >>> radio is capable of 100 watts out max and verified is set to 20 watts. >>> >>> >>> >>> Set tune power to 10 watts. >>> >>> Meter in amp during standby reads 10 watts. >>> >>> Switch to operate and immediately get input power too high alarm @ 91 >> watts. >>> >>> >>> >>> Switch to 20 meters (resonant antenna). No issue - 10 watts tune is >>> approximately 400 watts out with no error. >>> >>> >>> >>> Any ideas? >>> >>> >>> >>> Dave wo2x >>> >>> >>> >>> >>> >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:[email protected] >>> >>> 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:[email protected] >> 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
