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Re: LF: WSPR Beacon -RIP

To: [email protected]
Subject: Re: LF: WSPR Beacon -RIP
From: Roger Lapthorn <[email protected]>
Date: Sun, 19 Sep 2010 12:32:06 +0100
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That does not sound good Andy. At least at the (definitely not QRO) RF powers I'm using this should not be a risk. However, the downside is few reports :-(

73s
Roger G3XBM

On 19 September 2010 11:54, Andy Talbot <[email protected]> wrote:
Well, it was nice while it lasted.  Went downstairs and smelt smoke.   Heard a crackling noise coming from the plastic "shed" housing the ATU .   Opened the door, saw flames and melted plastic.
 
Two buckets of water before they were extinguished - plastic B+Q sheds burn very well
 
Goodbye antenna tuning cabin :-(
 
The loading coil and antenna survived.   My credibiilty didn't  :-(
 
Pictures will follow
On 19 September 2010 11:44, Andy Talbot <[email protected]> wrote:
Sinece theere were no reports of my QRP WSPR beacon last night two conclusions can be drawn :
 
a)   No One was listening
b)   Its too weak.
 
To resolve   a) ...... ??  Not a lot I can do apart from post this message :-(
 
But to resolve b), I've now fired up the big switchmode PA   http://www.g4jnt.com/137tx.pdf      
Generating about 600 Watts this will increase ERP into the region of  17dBm
(The WSPR message says 13dBm, but its lying. I've already run up and downstairs with the PIC programmer, and don't want to do it again)
 
 
 




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