[VHFcontesting] rover tech - coax
Steve Meuse
smeuse at mara.org
Wed Jul 11 12:26:07 EDT 2007
Paul Kiesel expunged (k7cw at yahoo.com):
> I have a question. Why use inflexible coax at all for
> a rover installation when you can use RG-213 for
> virtually all bands. The losses associated with RG-213
> will be small with short runs as on a rover.
Why? 40+% more efficiency?
Freq loss cable (based on 20' runs)
---------------
432 .9 RG-213
.6 LMR-400-UF
.5 LMR-400
902
1.5
.9 LMR-400-UF
.8 LMR-400
1296
1.7 RG-213
1.1 LMR-400-UF
.9 LMR-400
Rovers typically use lower-gain antennas, so the extra .5 can make a difference. Personally, I use LMR-400UF in my rover config.
-Steve
N1JFU
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