[Elecraft] K3 - A different RTTY question

[Dave Hachadorian]

I have tried using the dual passband filter in FSK, and it 
doesn't seem to copy any better than the flat DSP filter with 250 
Hz roofer. I also can hear that slight ringing on the mark and 
space frequency in the headphones with DPB. The ringing makes it 
a little hard to tell in the headphones if a really weak station 
is calling. I use the regular flat DSP filter now.

Dave Hachadorian, K6LL
Yuma, AZ

--------------------------------------------------
From: "Mike" <nf4l at nf4l.com>
Sent: Monday, March 01, 2010 2:42 PM
To: <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] K3 - A different RTTY question

> I've found I copy much better without using dual passband. I 
> have the
> 400Hz 8-pole filter. I'm using AFSK-A. I use MMTTY.
> With DPB on, even the noise sounds a bit like a RTTY signal, 
> and the
> MMTTY  shows 2 little peaks on the FFT display.
> Do I have a configuration problem, or is that normal?
>
> 73, Mike NF4L
>
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