Folks, lets look at the REAL numbers:
RG-213 length = 100 ft
Frequency = 10 MHz
SWR = 30:1 {thus load Z = 1500 ohms}
100 watts in results in 31.5 watts out
RG-58 length = 100 ft <Do you actually dare to use the stuff?>
Frequency = 10 MHz
SWR = 30:1 {thus load Z = 1500 ohms}
100 watts in results in 17.4 watts out
Yes it is a waste of power but hey, it's not a bad as some prophesize.
73
Bob, K4TAX
----- Original Message -----
From: "mgoins" <mgoins@mail.ev1.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Sunday, January 22, 2006 2:10 PM
Subject: Re: [TenTec] What makes the 238 good or any other tuner good?
I agree that using a shack-end tuner, through coax, to an non-resonant
antenna is a pretty inefficient way to do things. It's one of the best
ways I know
to attenuate a 100 watt transmitter output to about 5 Watts, ERP.
----------and I've worked all over the world through a tuner with one
watt, cw, ssb, and psk. All depends on a lot of variables. This is not a
simple "this works- this won't" discussion.
mike
k5wmg
one watt all the time
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