[Elecraft] Variable bandwidth crystal filter

[jrgroeger]

Joe,

Walter Cronkite would have likely  endorsed your view by saying:     
"And that's the way it is"

Tks es 73


JRG





Joe Subich, W4TV schrieb:
>   
>>  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 
>>     
>
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