[Elecraft] [K2] Transmit Audio Problems

[Michael Eberle]

Aha, I think I found it.  It appears that I have swapped C14 (22uF) with 
C50 (2.2uF).


On 6/6/2014 11:09 PM, Michael Eberle wrote:
>
> Okay, I have gone through all the filters and adjusted them using a 
> noise source and spectrogram.  The carrier showing up on PTT in USB or 
> LSB has disappeared but I think this went away with installing the top 
> cover.
>
> I still have problems with the audio.  I set the dial frequency to 
> 14200.00 USB and transmit a 700Hz tone.  Monitoring the transmitted 
> signal with my K3 and P3 this is what I see.  The expected spike at 
> 14200.70, another shorter spike at 14.201.40, and another small spike 
> at 14.202.10 -- exact multiples (harmonics) of the original 700Hz 
> tone.  These spikes show up on all bands but 20 is the only band I 
> have actually used the P3 markers to measure.
>
> What should I be checking for that could cause this?
>
> Thanks,
> Mike - KI0HA
>