[IRCA] S. AZ Tuesday TP

[Steve Ratzlaff <ratzlaffsteve@xxxxxxxxx>]

I built an E/W (null to the east) dual delta terminated KAZ loop two 
days ago, thanks to the Duremberger paper and to advice from KAZ 
himself, two days ago and have tested it the past two mornings, hoping 
to get some MW TP reception. Monday morning had terrible conditions but 
this Tuesday morning had presumed-1566 HLAZ briefly fade up to medium 
(easy copy) level, totally dominating the channel and driving the strong 
local Tucson station QRM down to inaudibility, peaking at 1250 utc. It 
had been poorly heard for 15 minutes before, and soon faded away 
completely after that. A number of weak hets on other channels but 
nothing but HLAZ producing audio. A check with my previous main antenna, 
an active whip, had HLAZ buried in the local domestic AMBC QRM, so it 
does appear the DKAZ did what it's supposed to do. I'm south and west of 
Tucson about 15-20 miles but I couldn't erect the loop for best nulls 
that direction but I'm still seeing decent nulls. So I'm happy with the 
initial results for TP reception. I also DX LF NDBs and am finding this 
loop to be an excellent performer at LF too

Steve Ratzlaff AA7U

near Sahuarita, AZ (about 10 miles west in the desert)

Icom R75, basic DKAZ loop (140' base, two 22' masts, #18 wire, 
potentiometer for termination, Wellbrook FLG-100)

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