What about just adjusting the frequency of the rcvr higher & higher?
In addition to being farther away from antenna's resonance, the higher
you go in freq, the closer you need to be to the noise source to pick it
up.
73, de ed -K0iL
-----Original Message-----
From: Pete Smith [mailto:n4zr@contesting.com]
Sent: Tuesday, December 17, 2002 6:55 PM
To: rfi@contesting.com
Subject: [RFI] DFing progress
I wented to let everyone know that I've succeeded in mating the Moxon
rectangle antenna from the March 2001 RFI receiver project to my Icom
IC-Q7A handitalky. I cobbled up the antenna out of aluminum rod,
mounted
it to a board with screw eyes, and threaded the ends of the rod for nuts
to
attach the feedline. The resulting antenna resonated at 137 MHz first
try,
and has a broad front lobe, fair attentuation off the sides, and a very
narrow cardioid-style notch off the back, all just as advertised.
The only small downside is that the thing is almost too sensitive.
Anyone
got any suggestions for a simple non-calibrated attenuator that I could
put
between the antenna and the radio to make it work a bit better close in
to
the noise source?
73, Pete N4ZR
Happy Holidays
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|