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Re: LF: 137 WSPRing

from [Gary - G4WGT] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: 137 WSPRing
From: Gary - G4WGT <[email protected]>
Date: Thu, 23 Sep 2010 21:51:55 +0100
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Andy,

I have had my 136kHz monitor on full time & the last decode I got was at 1640utc & nothing since.

I would like to see a write up regarding the linear PA please.

73

Gary - G4WGT.


On 23 September 2010 21:01, Andy Talbot <[email protected]> wrote:
Has everyone turned off their monitors?    Plenty of reports from  four stations throughout the day at distances up to 376km (F5WK in JN18HP)  then all stop at 1740z. 
 
Still radiating, about 40W into the antenna now.   I've optimised the PA output by changing the transformer and added a few tap positions for loads from 50 to 150 ohms.   If there's any interest in this rather standard linear PA, I'l  write it up - if not, shan't bother.    The FETs would have to be substituted anyway.

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