[Lowfer] XKO cw ID quite audible this morning

Dexter McIntyre w4dex dexter.mc at gmail.com
Mon Mar 11 19:02:50 EDT 2013


Michael Sapp wrote:
> Dex: I had my EWE oriented SW and your CW ID on XKO on 137 at least 10dB out of the noise at 0503Z in particular, audible much of the evening whilst toying with QRSS60 on and off to better understand contrast, etc.,
Thanks for the XKO aural report Mike.  While home during lunch I noticed 
the amp current and relative froward power meter readings were a bit off 
for a good antenna match.  Not having time to make the needed matching 
transformer tap change I just reduced the output power to 25 watts.  I 
have now made the adjustment and have the power back up to 400 watts.  
The antenna impedance change must be mainly due to temperature changes 
even though we haven't had temperatures low enough to freeze the 
ground.  But maybe the change is due to sap rising in the oak trees.  
The high here today was 70°.

Dex


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