On Tue,5/23/2017 7:33 PM, Ken wrote:
I have plenty of room for antennas, I have 128 acres here. I could
try putting something up 500' away but I figure the feedline losses
would do me in.
Exactly how did you do that "figuring?" Did it involve doing the
relatively simple math of looking at loss data vs frequency for feedline
that you could afford to purchase? Or were you just assuming the greater
loss? The matched loss of 500 ft of low loss RG8 (Belden 9913, Times
LMR400) is less than 0.75 dB on 160M, only 1 dB on 80M, and 1.5 dB on 40M.
OR -- should you keep your TX antennas closer to the shack but add RX
antennas in parts of your property that are quieter? There, feedline
loss doesn't matter, and we can use low cost CATV coax to feed them. I
can buy 1,000 ft of Commscope flooded RG6 for $100
https://www.amazon.com/COMMSCOPE-Professional-Underground-COAXIAL-Coated/dp/B00TBWWCT0/ref=sr_1_1?ie=UTF8&qid=1495647714&sr=8-1&keywords=commscope+rg6+flooded
I have several thousand feet of it running through my woods to RX
antennas. This is excellent cable, easy to pull, and seems to be
rodent-proof (they don't like the flooding material).
73, Jim K9YC
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