[TowerTalk] Best Coax

[n4kg@juno.com]

The "best buy" has to be CATV 75 Ohm hardline.
Half inch CATV line has 0.5 dB / 100 ft loss at 10M
Three-quarter inch CATV line has 0.3 dB / 100 ft loss at 10M.

All of my runs over 300 ft are 3/4 inch CATV with short RG-59
or RG-11 flexible lines at each end, in multiples of 1/2 WL
total length.

RG-8 or RG-213 can also be used at the ends in 1/2 WL
multiples.

Other matching tricks include 50 to 75 Ohm UnUns and
1/8 WL 50 to 75 Ohm coaxial transformers.

de  Tom  N4KG


On Mon, 10 Apr 2000 21:48:33 -0700 (PDT) PB Hoth <pbhoth@yahoo.com>
writes:
> 
> Hello Anybody:
> 
> I'm erecting a 90' tower and antenna system requiring
> 300ft of coax to connect to the shack.  I have
> antennas ranging from 10 to 80 meters on the same
> tower.  With these conditions I'm wanting to know
> which coax would be best for a reasonable expendure.  
> 
> Thanks,
> 
> Paul, kj7rk@arrl.net
> 
> 
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