[TenTec] Crystal vs. DSP Filtering: Tnx 4 ur help!

[Steve Baron - KB3MM]

259\0 Hz is pretty narrow <gr>

----- Original Message ----- 
From: "John Pfeifer" <jpfeifer at gci.net>
To: <tentec at contesting.com>
Sent: Wednesday, December 03, 2003 01:48
Subject: [TenTec] Crystal vs. DSP Filtering: Tnx 4 ur help!


> Hello all,
>
> Thanks for all the replies!  I think my problem was largely the result of
operator error...
>
> The suggestion to use the PBT control proved most helpful.  I found that
if I tuned the weak CW signal in as close to 600 Hz as possible using a
fairly wide bandwidth, I could then turn both 250 Hz filters on and "fine
tune" with the PBT.  The sweet spot is very narrow, but even a very weak
signal really leaps out.
>
> In the past, I was trying to tune with the main dial while using a narrow
filter, and just could just never find the right spot.
>
> Next time I have a "QRP Pileup" ;-) I'll see if I can pick out individual
signals with the PBT.
>
> Thanks again & 73,
>
> John Pfeifer - KL0WN
> Kodiak, Alaska
>
> > Hello all,
> >
> > I've been playing around with my Omni V.9 in some QRP contests lately
> where I am trying to pick out one weak signal from a bunch of  weak
signals.
> Everybody's running QRP and nobody is above S5.  When I crank in any
> filtering below 1.8 kHz, however, all of the signals are attenuated to the
> point that I can't hear anything.  I've noticed the same phenomena with my
> Elecraft K1 as well.  It seems like narrow filtering only works for
signals
> that are S6 and above.
>  etc.
>
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