[Elecraft] 2.13 beta

[Joe Subich, W4TV]

Lyle, 

> 50 Hz and 100 Hz BW are available in PSK D.
> 

With a 1500 Hz center frequency the narrow filter should be made 
available in DATA A.  I would also argue that it should be made 
available in AFSK A if MARK <> 2125 (e.g. CF=1000Hz or 1360Hz). 
Both DATA A and AFSK A are useful for PSK31 which can benefit 
from the ultra narrow filtering. 

73, 

   ... Joe, W4TV 
 



> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Lyle Johnson
> Sent: Thursday, July 03, 2008 11:59 PM
> To: kk6ue at yahoo.com
> Cc: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] 2.13 beta
> 
> 
> > ...I can now only drop to 150 hz in data mode, not 50 like 
> I was able 
> > to with 2.10 Any one else seeing this.
> 
> 50 Hz and 100 Hz BW are available in PSK D.
> 
> The reason they are not available in other data modes is because they 
> are not applicable (AFSK and FSK D), or the fact that the center 
> frequency allowed for the sharpest FIR filters is limited to 
> something 
> under 2 kHz makes them not general.
> 
> 73,
> 
> Lyle KK7P
> 
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