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[TowerTalk] Re: [YCCC] Relays in RF usage UPDATE

To: <towertalk@contesting.com>
Subject: [TowerTalk] Re: [YCCC] Relays in RF usage UPDATE
From: w1wef@c4.net (Jack S Schuster)
Date: Thu Aug 14 10:05:49 2003
A good 10 amp relay works!   JACK
----- Original Message ----- 
From: "RCARIELLO" <RCARIELLO@si.rr.com>
To: "YCCC" <yccc@yccc.org>; "FCG" <fcg@kkn.net>; "Towertalk"
<Towertalk@contesting.com>; "ECC Reflicter" <EmpireCC@yahoogroups.com>
Sent: Wednesday, August 13, 2003 7:23 PM
Subject: [YCCC] Relays in RF usage UPDATE


> I just received my copy of Worldradio September 2003.
> There is an article by Kurt N. Sterba on page 34, Aerials SWR and Voltage.
>
> Second paragraph "voltage goes up as the square root of the VSWR. So, with
> 3:1 VSWR, the voltage and current are only 1.7 times greater then with
1:1.
> A 50-Ohm perfectly matched line with 1500 watts power will have a voltage
of
> 274 volts. With 10:1 SWR the voltage will be 866 volts."
>
> I will have to recalculate my power chart I sent using this new
information.
>
> Any comments??
>
> Rich AA2MF
>
>
>
>
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