[Elecraft] K3: DSP Bandwidth Limit

[Joe Subich, W4TV]

On 2019-12-13 8:58 AM, Jim Stoneback via Elecraft wrote:
> Is there any way to expand the (receive) DSP maximum bandwidth beyond 5kHz in AM mode?  

No.  It would be ineffective since the audio chain has a
4500 Hz "brickwall" (sharp cutoff) lowpass filter limiting
the audio response (to remove DAC artifacts/aliasing).

> I have the 13 kHz roofing filter installed.

Remember, the DSP display is audio.  5 KHz represents 10 Hz at
RF (IF).


73,

    ... Joe, W4TV