[Elecraft] [K3] Noisy K3 receiver

[David Gilbert]

That's an interesting observation and there is an easy way to check it 
out.  If you feed the stereo Line Out signal from your K3 into your 
sound card while using Spectrogram (a free program) to observe both 
channels, you should be able to get a direct comparison of the two 
receivers.  Spectrogram will even let you take a jpeg snapshot of the 
spectrum display.  Any chance you might be willing to do that?  If you 
don't want to mess with it, just record some of the audio as a stereo 
file and I'll run it through Spectrogram for you.

Just be sure to have all the same K3 settings (gain, bandwidth, shift, 
etc) for both receivers and tune both receivers to similar portions of 
the band.

73,
Dave   AB7E



Richard Ferch wrote:
> HB9ANM wrote:
>   
>> what puzzles me is why this topic now suddenly pops up more
>> two years after the first K3s appeared in the ham community? There must be
>> some good reason why nobody raised the subject before... Until someone
>> sparked a tsunami of comments!
>>     
>
> Possibly because the problem might exist in only a small percentage of 
> K3s. For example, my main RX is quiet, but my sub-RX is noisy. Two K3 
> receivers in the same box with the same settings and firmware, different 
> audio performance. Maybe the main receivers in the K3s whose owners 
> complain about noise have the same problem as my sub-RX, whatever that 
> problem may happen to be.
>
> 73,
> Rich VE3KI
> ________________