Re: [Elecraft] KPA1500, 4 years old, Intermittent LOW GAIN error.
The idling current displays at 2A, but you have to be in operate. When the HIGH SWR error occurs the amp goes in to standby. Putting it back into operate after the error the idle current is again displayed as 2A, waiting for the next intermittent HIGH SWR failure. I hate intermittents. Thanks - Paul KW7Y -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Roy Sent: Wednesday, May 11, 2022 9:57 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA1500, 4 years old, Intermittent LOW GAIN error. Check your idling current -- should be stable at about 2 amps. 73, Roy K6XK > Over the last couple of weeks, I have an intermittent problem with the amp. > On a number of occasions, I have received a LOW GAIN error message. > The output drops from 1400W to a few hundred watts or less as > confirmed in the logging file and my external power meter The problem > can go away for a few days and then return. Cycling the power has no > effect, the intermittent may or may not return almost immediately. > > Has anybody experienced a similar problem? > > Thanks > > - Paul KW7Y > > _ __ 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 p...@paulbaldock.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, 4 years old, Intermittent LOW GAIN error.
Check your idling current -- should be stable at about 2 amps. 73, Roy K6XK Over the last couple of weeks, I have an intermittent problem with the amp. On a number of occasions, I have received a LOW GAIN error message. The output drops from 1400W to a few hundred watts or less as confirmed in the logging file and my external power meter The problem can go away for a few days and then return. Cycling the power has no effect, the intermittent may or may not return almost immediately. Has anybody experienced a similar problem? Thanks - Paul KW7Y _ __ 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, 4 years old, Intermittent LOW GAIN error.
I had problems at one point due to the 3 watt resistor on the filter board desoldering itself causing the amp to have errors. The RF deck went back to Elecraft and Renee got it repaired. There were also a few hardware updates done while it was back for a visit in Watsonville. I don’t think that is related to your problem but you could take off the bottom cover and take a look if there is any obvious signs of trouble on the filter or PA board. Having the updates done to the RF deck made the amp 100% rock solid after that. 83 Dave wo2x Sent from my waxed string and tin cans. > On May 11, 2022, at 11:55 AM, p...@paulbaldock.com wrote: > > Over the last couple of weeks, I have an intermittent problem with the amp. > On a number of occasions, I have received a LOW GAIN error message. The > output drops from 1400W to a few hundred watts or less as confirmed in the > logging file and my external power meter The problem can go away for a few > days and then return. Cycling the power has no effect, the intermittent may > or may not return almost immediately. > > Has anybody experienced a similar problem? > > Thanks > > - Paul KW7Y > > __ > 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 rocke...@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] KPA1500, 4 years old, Intermittent LOW GAIN error.
Over the last couple of weeks, I have an intermittent problem with the amp. On a number of occasions, I have received a LOW GAIN error message. The output drops from 1400W to a few hundred watts or less as confirmed in the logging file and my external power meter The problem can go away for a few days and then return. Cycling the power has no effect, the intermittent may or may not return almost immediately. Has anybody experienced a similar problem? Thanks - Paul KW7Y __ 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
