[Elecraft] Variable bandwidth crystal filter

[Joe Subich, W4TV]

>  With the upoming 10 Hz resolution DSP upgrade (Firmware 3.23 being 
> talked about), I certainly wouldn't see much need for a variable BW 
> roofing filter.

10 Hz steps for DSP does not eliminate the need for a variable BW 
roofing filter.  It would certainly be nice to have something that 
went from "narrow SSB" to "wide CW" ... to fill the hole between 
2.7/2.8 and 500 HZ. 

73, 

   ... Joe, W4TV 
 



> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Chuck Guenther
> Sent: Wednesday, August 05, 2009 7:51 PM
> To: elecraft at mailman.qth.net
> Cc: joachim.groeger at ewetel.net
> Subject: Re: [Elecraft] Variable bandwidth crystal filter
> 
> 
> J.R. Groeger wrote:
> 
> "I seem to remember talk some time ago about a variable bandwidth 
> crystal filter becoming available for the K3 at some stage. 
> Anyone know 
> the status of its development?"
> 
>  With the upoming 10 Hz resolution DSP upgrade (Firmware 3.23 being 
> talked about), I certainly wouldn't see much need for a variable BW 
> roofing filter.
> 
> 73,
> Chuck  NI0C
> K2, K3