Several people helped me understand coax selections a little better,
and I appreciate the efforts involved. My selections appear to be:
1- LMR600, LMR600UF, or LMR600DB (most expensive, more difficult to
use)
2- RG-213 (least expensive, easy to use)
3- 9913FX (middle of the road ?)
For various reasons I am not interested in N connectors. I will stick with
PL-259s.
I am looking at a run of 175', with part in a conduit under ground and part
exposed
on the tower. As mentioned earlier. I like to work 10 meters near the
noise level.
(When the band is *really* quiet, it is difficult to tell the difference
between my
current antenna and my dummy load.) Losing a little transmitted power does
not bother me -- I can always turn on the amplifier -- but I like to hear
well.
Questions:
1. Water exposure. How sensitive are these three types to water
problems? I attempt to seal my connections, but I am not perfect. (Once
upon a time, a long time ago when I was a novice, there was seldom any
mention
of coax and water in the literature. I simply opened the ends of RG58 and
connected this to dipoles. It worked find for years.)
2. There was a discussion somewhere about the difficulty of putting
connectors
on LMR600. If the center conductor has the slightest nick the connection
will go bad quickly. Is this correct? I *hate* working with coax
connectors
and would probably nick something.
3. There was a lot of discussion about foam. Is there a problem letting
LMR600 dangle 60' from a crankup tower? It would seem that this is
likely to bend/crimp/squeeze/pull the coax holding point at the top.
4. 9913FX does not appear often in these disucssions. Is there a problem
with it?
Is the 1.3 db difference between LMR600 and RG213 really worth bothering
about?
Bill
W2WO
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