Topband: Narrow Filtering

[Julius Fazekas]

Zero beating may not be "the" answer in all cases, keep in mind that some operate with a shift to reject local QRM which you may not hear. Something to keep in mind when wondering why they don't hear you where you think they should.

Another possibility is that they may have forgot to shut off their RIT/XIT.

Keep flexible is the best advice.

Cheers,
Julius

Julius Fazekas
N2WN

Tennessee Contest Group
http://www.k4ro.net/tcg/index.html
http://groups.google.com/group/tcg1?hl=en

Tennessee QSO Party
http://www.tnqp.org/

Elecraft K2/100 #4455
Elecraft K3/100 #366
Elecraft K3/100 #1875


--- On Tue, 2/2/10, David Raymond <daraymond at iowatelecom.net> wrote:

> From: David Raymond <daraymond at iowatelecom.net>
> Subject: Re: Topband: Narrow Filtering
> To: "TopBand" <topband at contesting.com>
> Date: Tuesday, February 2, 2010, 10:22 PM
> 
> > When there is a run station every 300 Hz, it becomes
> difficult
> > to distinguish between a station calling me
> off-frequency
> > vs a station calling my "neighbor" on-frequency.
> 
> The importance of zero beating the station being called
> becomes increasingly 
> important.  The art of zero beat is certainly not what
> it used to be. 
> Compounding this with stations running extremely narrow
> bandwidths creates a 
> lot of confusion and frustration.  When you add in
> excessive QRQ and 2 
> seconds of listening time between CQs (or less), it's no
> wonder some big run 
> stations miss a lot of Qs.  It's not exactly like
> running JA from NA on 10m 
> in the peak of the sunspot cycle.
> 
> 73. . .Dave
> W0FLS
> 
> 
> _______________________________________________
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