Hi Bob, Yes, the harmonics are visible but down a comfortable more than 70dB below the fundamental. There is still a little bit of junk around 3900Hz (it was there on the analog line out, too).
AB2TC - Knut PS. Is a schematic forthcoming any time soon? This is the first radio I have owned ever, with no schematics. Bob McGraw - K4TAX wrote > In Knut's plot with the 1 kHz peak, the 2nd harmonic and 3rd harmonic > are clearly visible. In the one with the low end, I agree, no 60 Hz, > 120 Hz or 180 Hz is seen. I measured my K3S with the radio connected > to the computer via the USB port. No 60 Hz, 120 Hz or 180 Hz signal > observed. > > I suspect if anyone is experiencing "hum" they best look for a ground > loop which likely exists as there is a difference in potential between > different pieces of equipment. > > 73 > Bob, K4TAX > > On 12/31/2015 1:15 PM, ab2tc wrote: > <snip> -- View this message in context: http://elecraft.365791.n2.nabble.com/K3IOB-tp7611605p7612108.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: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
