[Elecraft] Impossible mission? USB with the 13khz filter for PSK31on Digipan

[Barry N1EU]

Joe Subich, W4TV-4 wrote:
> 
> 
> 
>> Unfortunately, despite specifically enabling the KFL3B-FM 
>> 13Khz filter in USB mode, I cannot get 13Khz of bandwidth in 
>> USB receive.  As a matter of fact, I cannot seem to get much 
>> more then 4Khz of receive in USB receive mode. 
> 
> You will not see more than 4 KHz of audio in any mode.  The 
> DSP includes a "brickwall" cut-off at 4200 Hz in SSB, DATA, 
> AM and FM with a lower (2800 Hz) cutoff in CW. 
> 

With LP-PAN and PowerSDR or Winrad you can open up the audio bandwidth
(20Khz?)

73,
Barry N1EU

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