[Elecraft] K3 Loses RX Audio at BW of 2.8 kHz

[Joe Planisky]

Hi Scott,

Just a shot in the dark: Have you checked your filter configuration?    
If you happen to have an empty slot enabled for those modes, you'll  
get exactly the behavior you described.  Use the K3 Utility to look  
for a slot that you know to be empty but with the Bandwidth set to 2.8  
and the LSB, USB, and AM boxes checked.

73
--
Joe KB8AP

On Feb 5, 2010, at 10:45 PM, Scott Prather wrote:

> All: This evening when running FW 3.76 I'm seeing a problem with my  
> K3 that
> I've never seen before.
>
> When the K3 is in the LSB, USB or AM mode, adjusting the bandwidth  
> down to
> 2.8 kHz will result in total loss of audio, even though the S-meter
> continues to read incoming signal strength.

...

>  To get audio to return, all I need to do is
> change the BW to 2.9 kHz or greater on either the main or the sub.
>
...

> Does anyone have a suggestion as to what might be going on?
>
> Tnx.
>
> Scott
> N7NB