Hi Brian,
I'm not sure where you got your numbers from, but.....
> I'm fed up with using crummy RG59 to feed TV antenna. RG11 turns out
> to be even more lossy for the UHF channels. I have enough 1/2" or
At 700 MHz
RG-59 (F59) cable from CommScope:6.42dB per 100'
RG-6 (F6) from CommScope: 5.6 dB per 100'
RG-11 (F11) from CommScope: 3.67 per 100'
750 Hardline from CommScope: 1.48dB per 100ft
Never use cable with a woven braid towards the center conductor at
UHF, use a foil lined cable! Woven braid cable can be very poor at
UHF, if the braid is against the inner dielectric without a smooth foil
lining!
> 3/4" CATV hardline to make the run. However, it appears to be a
> challange to mate it with the type F connectors on the antenna preamp and
> TV. I suppose a short length of RG59 on both ends would be OK.
.750 hardline to F connector fittings are readily available. I use
them in all my 160-meter antenna trunk cables. I sure wouldn't use
a makeshift fitting at UHF, especially for video.
Treat a CATV line crew guy to a free lunch, or buy him a six-pack
of beer.
What I do is run an amplifier at the antenna.Then I can use small
cable, like F-11, to the house.
>
> Any suggestions? How do the cable guys do this? It seems like I
> stand a chance of loosing most of what can be gained by poor adapters.
>
> 73 de Brian/K3KO
>
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>
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73, Tom W8JI
W8JI@contesting.com
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 96 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
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