David wrote:

On Mon, 18 Apr 2005 13:33:03 GMT, "Michael A. Terrell"
wrote:


If you want to use 75 ohm cables its your choice. The patch bays are
BNC on both halves so you can use 50 or 75 ohm cables with them. These
patch bays show up used and surplus along with the plugs. I've used
them at several TV stations, a mobile production van I built and in the
telemetry package we shipped to Italy. They are a lot better quality
than "F" fittings and CATV switches. I used to run insertion loss and
other tests on samples for United Video Cablevision and there was more
junk submitted than quality parts. Even the better quality switches
only lasted a year or so when we used them to reroute video feeds in the
L.O. studio.

75 Ohm BNCs and 50 Ohm BNCs are two different connectors. You can mix
them up if you like, but it's lame.


"N" connectors are the really touchy connectors as far as pin and
collet diameters.

I would worry more about the intermod problems from worn contacts in
cheap A-B switches. I've seen it and had to track it down in places
that were too cheap to buy a video router or patch bay.

--
Former professional electron wrangler.

Michael A. Terrell
Central Florida