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Re: [Amps] Plate Load Calc.

To: <>
Subject: Re: [Amps] Plate Load Calc.
From: "Robert Chudek - K0RC" <>
Reply-to: Robert Chudek - K0RC <>
Date: Sat, 3 Mar 2007 10:18:01 -0600
List-post: <>
Heh heh... And I experienced something similar, first hand, when I got my QSL 
card from the FCC. It was back in my Novice days ('62), running a Knight Kit 
T-50 [-807-], tuning the output for "best" output. Well I was calling CQ on 
7416 kHz and was 599 in Grand Island Nebraska. I think I used a ne2 taped to 
the twinlead feedline for my power meter.

I wonder what happened to all the letters we sent back to the FCC after these 
reports? They would probably make some pretty funny reading now that "we all 
know better". 

73 de Bob - KØRC in MN


Message: 9
Date: Sat,  3 Mar 2007 10:50:00 +0100 (CET)
From: Peter Chadwick <>
Subject: Re: [Amps] Plate Load Calc.
Content-Type: text/plain; charset=UTF-8

Tom said:
>If you get the Q too low the loading control will work 
backwards. If you get it too high the tuning will be 
needlessly sharp and there will be a little more tank heat.<
Another problem if the Q gets too low is that the harmonic output tends to 
start rising. If Q gets extremely low, there can be enough harmonic that the 
apparent SWR rises, since the antenna isn't matched at the harmonic and so the 
SWR meter sees reflected energy at that frequency. I once saw it happen in a 
bodged installation where they tried to pull the tx a long way LF outside its 
real frequency range.
Peter G3RZP
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