[time-nuts] RG 6 U couplings
EWKehren at aol.com
EWKehren at aol.com
Sat Dec 5 18:23:33 EST 2015
Thank you all for the information, worse case I look at 70 feet with two
couplings all in an inaccessible attic. The cable is quality but vintage
1989. Part of an extensive cable TV wiring. So far nine with two I am not able
to locate the other end.The way they are installed I am not able yet to use
one of them to pull a new one in.
Twenty years ago I probably would have risked crawling in there. Don't want
to fall 16 feet at age 73.
Bert Kehren Palm City .
In a message dated 12/5/2015 5:11:01 P.M. Eastern Standard Time,
magnus at rubidium.dyndns.org writes:
Extending the RG-6U using N-connectors should not be giving you more
than 0.20 dB, probably less. Considering that you have have 6.12 dB per
100 feet in RG-6U at 1 GHz (should be about 8 dB @ 1.575 GHz), so it
will be more. Using N-connectors to extend the cable-stretch isn't going
to be a major issue, it may be the cable length that could present an
I've been fighting these issues, and used too long cable at hand (RG-58
is a terrible choice but was lying around at the time). I use LMR-400
these days, giving me about 5.1 dB per 100 feet.
If cable and connector damping causes you harm, then consider installing
an additional LNA inline with the antenna.
Hope it sort itself out for you.
On 12/05/2015 09:28 PM, Bert Kehren via time-nuts wrote:
> At my new home the GPS antenna location has turned in to a challenge.
> have to splice RG 6U. Has any one done measurements on couplings and the
> loss associated with them. Right now I am considering a female, female
> coupling. Is there a better alternative?
> Thanks Bert Kehren Palm City Fl.
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