[Elecraft] KIO3B Audio Spec

[ab2tc]

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>





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