[Lowfer] WD2XNS WD2XES daytime WSPR

Dexter McIntyre W4DEX dexter.mc at gmail.com
Sun Feb 27 12:32:53 EST 2011


jrusgrove at comcast.net wrote:
> WD2XNS  and WD2XES will be transmitting WSPR on 137.750 carrier / 136.250 dial USB for at least 
> several hours.
I set up XKO to join in but noticed very erratic antenna tuning with 
more than a few watts.  I noticed while running on 461.5 khz a few days 
ago the tuning had changed.  Initially I though the problem was most 
likely a bad top hat wire connection which sure wouldn't be an easy 
fix.  So I went out to do a visual assessment from ground level.  It 
didn't take long to notice the end of one top hat wire was laying across 
an oak tree.  I guess that didn't hurt my 461 signal because of all the 
reports while running only ten watts.  But for 137 khz I assume the 
higher voltage on the wire is severely detuning the antenna.  The good 
news is I think the fix will be fairly easy.  That remains to be seen.

For now I have WSPR running at 5 milliwatts.  Of course I expect no 
reports :)

Dex


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