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[TowerTalk] 1kW DC vs 1.5 kWPEPRe: TH7-DX Balun

To: k2qmf@juno.com, garyschafer@comcast.net
Subject: [TowerTalk] 1kW DC vs 1.5 kWPEPRe: TH7-DX Balun
From: Jim Lux <jimlux@earthlink.net>
Date: Wed, 23 Feb 2005 09:49:49 -0800
List-post: <mailto:towertalk@contesting.com>
At 08:04 AM 2/23/2005, k2qmf@juno.com wrote:

>That was plate power "input" in the old days.
>at 70 percent efficiency you had 700 Watts out not 3000!!!
>
>73,  Ted  K2QMF

True enough, but don't forget the power from the modulator.  In rough 
terms, you could put as much power into the modulator as you could in the 
carrier (the modulation power averages out in the "DC Power to the final 
stage"), so you could roughly double the DC output in RF terms.. about 1.5 
kW or so RF power.  And, of course, that's average power, not peak 
envelope, so, with the right modulation (heh, heh)... say 300% positive and 
100% negative, you could actually get a pretty darn high PEP. 


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