[Amps] Ten-Tec Titan 10 Meter Input SWR

[John Lyles <jtml@losalamos.com>]

Hi Gerald,
You can use a Delta Electronics OIB2 HF Operating Impedance Bridge to 
measure the input Z under power. Would need a constant carrier level for 
the meter to null easily.
73
John
K5PRO

> Date: Sun, 11 Jun 2017 17:12:42 -0400
> From: TexasRF@aol.com
> To: donroden@hiwaay.net, amps@contesting.com
> Subject: Re: [Amps] Ten-Tec Titan 10 Meter Input SWR
> Don, all you say is correct and good. BUT (seems there always is a but), as
> a practical matter, the input R+j of an amplifier varies with drive level
> and  usual test equipment will not provide useful data. If you drive it with
> a  transmitter there is no way to extract R+j  data at that power level.
>
> Without good R+j data the smith chart is unusable for this  problem.

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