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Re: Topband: The East Coast Advantage

To: Bill Tippett <btippett@alum.mit.edu>
Subject: Re: Topband: The East Coast Advantage
From: Tom Haavisto <kamham69@gmail.com>
Date: Thu, 29 Oct 2009 08:48:12 -0400
List-post: <topband@contesting.com">mailto:topband@contesting.com>
That is only part of it.  I read somewhere (ON4UN's book?) that signals can
leak from darkness (night) into daylight (sunset) areas.  However, getting
the angle right from the daylight area to ENTER darkness is a problem, as
well as the additional attenuation.  Bottom line being - you can hear stuff
arriving from the dark, but will have a tough time sending signals back.

Maybe someone else has a better explanation / reference for this.

Tom - VE3CX




K1FZ:
>  > Here in mid coast Maine, it has a lot to do with a lower noise
> floor.   With
> Beverage antennas, DX is often Q-5
> way before sunset.  The problem, - with in darkness high noise, and qrm on
> the other side, they rarely hear us very early.
>
>         Bruce has it right in his last sentence, which this holds
> true whether you are in W6, W1, EU or JA.  You can *always* hear
> stations to your East well before your sunset, yet they may not hear
> you because of higher QRN and QRM in full darkness.
>
>                                         73,  Bill  W4ZV
>
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160 meters is a serious band, it should be treated with respect. - TF4M

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