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Re: [Amps] QRO HF2000 input SWR adjustments

To: John Keating <john.keating@outlook.com>
Subject: Re: [Amps] QRO HF2000 input SWR adjustments
From: MU 4CX250B <4cx250b@miamioh.edu>
Date: Sun, 14 Mar 2021 17:23:51 -0700
List-post: <mailto:amps@contesting.com>
Sounds like it’s been tweaked for CW operation. It shouldn’t be hard
to retune the inputs for a compromise at the middle of each band. So
long as your transceiver can handle a 2:1 mismatch, there shouldn’t be
any operational problem.
73,
Jim w8zr

Sent from my iPhone

> On Mar 14, 2021, at 6:14 PM, John Keating <john.keating@outlook.com> wrote:
>
> The input SWR at 160m is below 1.5:1 from 1800 to 1925 khz, then rises 
> rapidly to >3:1 at 200 khz.
>
> Similarly, at 80m it's below 1.5:1 from 3600 to 3880 khz then rises to 2.2:1 
> at 4000 khz.
>
> Those are at what seem to be optimum settings of the trimmers for each of 
> those bands.
>
> Wondering if others have similar experience, and have succeeded in 
> "flattening the curve".
>
> 73, John
> AI6LY
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