TowerTalk people know a lot and have opinions on even more, so I thought I'd risk the following. I need to run Ethernet "CAT5" (or better) wire on an outdoor wall. I have PVC jacketed Belkin CAT5e ca
Martin: The CAT 5 cable for OUTDOOR use comes in different versions the common Black jacket is the cheapest, will work fine here in the Desert where I live those cables works fine for direct sun expo
Martin, There is outdoor rated CAT5. It's more expensive than regular CAT5 and is filled with gel to keep water out of it. The stuff that I've seen and worked with also had a black UV jacket on the o
Very interesting - I Googled and found multiple sources for shielded and gel-filled direct burial CAT5E for ~$160/1000ft. That's not that bad, given the price of copper and with ordinary CAT5 going f
Pete, They also make shielded RJ-45 connectors if you are thinking of going with the shielded outdoor gel filled CAT5E. 73 Matt W5LL _______________________________________________ __________________
I wouldn't throw money at shielded cable of any CAT-number. The primary interference rejecting property of that cable is the very high and very uniform twist ratio, and the primary RFI mechanism at H
I have one run that is 133' and parallels the cables to the tower from the shack. It actually runs with them for about 10' as well as another 6 to 8' in the ham shack where the modem, router, and swi
RFI may be a problem with or w/o shielded cable. EMP from summer lightning may be a much more expensive problem. Many if not most of the devices that connect with CAT 5 do not have surge protection.
Proximity to coaxial cables doesn't matter for differential mode coupling, only for common mode coupling of common mode current on those other cables. That part of the run matters -- it is coupling b
Actually, I was looking at the shields for chipmunk resistance, not RFI. I agree, I have seen no evidence of RFI on my existing cable, just toothmarks. 73, Pete N4ZR _________________________________
BUT -- be VERY careful where you connect the ground for a surge suppressor. It should needs a short, low impedance (at RF) path to the STAR ground. If it goes somewhere else, in the event of a strike
Which was my point. Those worried about RFI shouldn't normally have a problem. Doesn't seem to be a problem even though the common mode can be measured in volts. The equipment is all well grounded an
I doubt the shielding would slow them down any, but they don't like the goo used for flooding so that might help. I never had problems with critters until two years ago the snow was almost up to the
I have a neighbor who fixed the little beggars chewing on his cable.... he ran a new line and electrified it rather well... and.... well... I guess they taste better roasted. I thought there must be
I reply NO! SWR does NOT cause feedline radiation. IMBALANCE IN THE ANTENNA causes common mode current on the feedline, and that common mode current causes radiation. 73, Jim K9YC ___________________
I replied: EQUIPMENT Being close to a rig does NOT make you close to RF. RF field strength is generated by RF current flowing in an unshielded wire. It does not leak out of a well shielded box (or at