[Elecraft] K3 audio response, big roll off observed

[Mike Harris]

Can't see your dropbox offering. What roofing filter are you listening 
through? Whilst you can set the DSP filter to 4kHz if you are listening 
through a 2.7kHz roofing filter that is what you are going to get.

Regards,

Mike VP8NO

On 22/12/2015 06:26, on4iq wrote:
> Hi all,
> wonder if anyone can help me out.
> K3 audio frequency response in SSB or DATA mode has with flat EQ hughe
> rolloff.
> on the range 500-4000Hz there is 37dB roll off !
>
> Bandwidth is set to 4KHz.
> Any ideas to what might be the cause?
> Measured with spectrum labs,
> screen dump is to be found here :
> https://www.dropbox.com/s/2nd7axi6ic2osd6/Schermafdruk%202015-12-22%2010.24.04.png?dl=0