Re: [Amps] Tuner Loss

["Carl" <km1h@jeremy.mv.com>]

165W of loss in a well constructed tuner shouldnt even be a discussion 
point. Tank circuit loss in a 1500W amp is much more and we accept it as 
normal.

Carl
KM1H


----- Original Message ----- 
From: "Paul Christensen" <w9ac@arrl.net>
To: <amps@contesting.com>
Sent: Wednesday, March 09, 2011 12:17 PM
Subject: [Amps] Tuner Loss


>> All tuners have losses. Losses create heat. You can't change physics.
>
> But you can do a reasonably good job of avoiding the problems associated
> with physics if the underlying physics is understood.  All tuners have 
> loss.
> Some designs have less loss than others.  A well-built ATU that can
> accommodate 1KW of power across a generous range of load impedances does 
> not
> require a cooling fan.  If an ATU product uses a cooling fan, it's time to
> start asking tough questions of the manufacturer.
>
> Paul, W9AC
>
>
>
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