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Old February 22nd 10, 04:39 AM posted to rec.radio.amateur.antenna
J. Mc Laughlin J. Mc Laughlin is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 172
Default long wire AM antenna

Dear Jeff D (no call sign):

WSCR 670 kHz appears to be sports station - as you suggested. It streams
audio on the internet at:
http://radiotime.com/station/s_22732/670_The_Score.aspx

It is a 50 kW station with a nondirectional antenna. I had thought that it
might have a dip in your direction, which would explain why is was
especially weak.

In the AM broadcast band it is expected that the SNR (signal to noise ratio)
is externally determined when using some sort of antenna, which includes
what you described. In other words, you have not done anything wrong - the
probability is that the signal is too weak. Of course, if you have the room
for one or two km of beverage antenna pointing at Chicago, the results might
change, but I doubt it.

73, Mac N8TT

--
J. McLaughlin; Michigan, USA
Home:
"Jeff D" wrote in message
...
Trying to improve my reception from Chicago with baseball season
approaching. I'm about 100 miles sse in Indiana. I ran about 75' RG-6 from
my radio across the attic and outdoors to a tree. I had maybe 10 extra
feet of coax so I wrapped it around the tree. I strung about 50' of #9
steel wire between 2 trees going east/west about 15' above ground and
attached the copper conductor to it. I terminated the coax shield at the
tree with a ground rod. At the radio I attached the shield to the ground
terminal and the center cu conductor to the other am external antenna
terminal.
It greatly improved my reception I get all the major Chicago sports
channels, but the one I was most interested in 670 is the worst. What all
did I do wrong and what can I do to improve 670?