I run an Acom 1000 portable from a Yamaha EF2800i generator. The
generator does cough a little on CW but the voltage remains steady. Given the high value of the radio and amplifier I would not skimp on a generator. The output of the generator on an oscilloscope is cleaner than the mains supply. I am sure a generator of this type would be ideal for the KPA500. 73 Dave, G4AON ------------------------ However, small generators I have seen do not produce mains-quality sinewave output: it's more triangular and I just want to know if Elecraft are happy with their kit running on this sort of supply which is also varying in voltage and frequency. I can think of several mechanisms to stress a psu. David G3UNA ______________________________________________________________ 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 |
The KPA500 has a linear PSU and uses a conservatively sized toroidal
mains transformer followed by a pair substantial filter capacitors It's over and under-voltage protected by firmware, I strongly suspect it would not have any particular issues with a poorly shaped input mains waveform. If the generator voltage regulation is very poor indeed then the firmware may take action to protect the KPA500 from damage by taking it off line or protectively shutting it down. I hope to have my KPA500 on line for the UK elecraft net tomorrow morning. 73 Brendan EI6IZ On Sat, 2011-02-19 at 12:33 +0000, Dave, G4AON wrote: > I run an Acom 1000 portable from a Yamaha EF2800i generator. The > generator does cough a little on CW but the voltage remains steady. > Given the high value of the radio and amplifier I would not skimp on a > generator. The output of the generator on an oscilloscope is cleaner > than the mains supply. I am sure a generator of this type would be ideal > for the KPA500. > > 73 Dave, G4AON > ------------------------ > However, small generators I have seen do not produce mains-quality sinewave > output: it's more triangular and I just want to know if Elecraft are happy > with their kit running on this sort of supply which is also varying in > voltage and frequency. I can think of several mechanisms to stress a psu. > > David > G3UNA > ______________________________________________________________ > 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 -- 73 Brendan EI6IZ ______________________________________________________________ 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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