On Fri, 25 Feb 2005 18:18:49 -0600, Tim Duffy K3LR wrote:
>I have a 1200 foot European beverage that takes 1400 feet
>of RG8x to get to it. The feedline loss to the receiver
>is about 11 dB.
Gee, I hadn't thought of a feedline that long! With that much loss, I
would certainly agree -- IF I was in a relatively quiet RF
environment. :)
On the other hand, 11 dB seems high for that length of that cable at
1.8 MHz. Have you measured that much loss? If so, I would be
replacing it. Belden's data for 9258 ("sort of" equivalent to RG8X)
is 0.37 dB/100 ft at 2 MHz. That works out to just over 5 dB for 1400
ft. At 80 meters, it's more like 0.55 dB/100 ft.
Have you found receive antennas on 160 to be circuit noise limited
with the preamp in the shack?
Jim K9YC
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