----- Original Message -----
From: "M.J.Powell" <[email protected]>
To: <[email protected]>
Sent: Tuesday, July 30, 2002 2:07 PM
Subject: Re: LF: Re: Re: Power of Donebach 153kHz TX
snip
> Remarkable is Droitwich at 198kHz. There the carrier goes
> downward during modulation!
I used to get that with my old AM Tx in the 50's! Cause: Lack of grid
drive and improper loading/tuning. I wonder which it is now...
You are correct, it is no doubt still the same today. Adjusting those old
transmitters could be difficult, maybe make a bad job worse. Downward
modulation on AM transmitters was considered poor engineering amongst radio
amateurs in the early years, and poor CW even worse.
These days some do not know what either Downward mod or CW means!!!!
G3KEV
Mike
--
M.J.Powell
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