RF output DOES NOT equal Composite!!!!

From: Pete Turnbull <pete_at_dunnington.u-net.com>
Date: Tue Jun 18 17:02:08 2002

On Jun 18, 13:30, Andreas Freiherr wrote:

> Is the "Belling Lee Coaxial Plug" what I know as an IEC-type 75 Ohm
> connector? - It has a larger diameter than F connectors, and is neither
> threaded nor otherwise locked (not like BNC, for instance).

Probably. I've certainly seen the plugs we use, in Germany (or at least,
in Austria). Have a look at http://www.farnell.com/datasheets/21296.pdf
and see if the picture matches. Or look up DIN45325/IEC169-2

> Balanced (unshielded) cable for TV antennas had been in use in Germany,
> too, but it had 240 Ohms impedance, and it was replaced by 75 Ohm Coax
> about at the time when valves were replaced by transistors.

We used to have 300-ohm twin feeder for VHF (about 86-106MHz) FM radio
antennae, but it's rare now. Mostly 75-ohm coax.

-- 
Pete						Peter Turnbull
						Network Manager
						University of York
Received on Tue Jun 18 2002 - 17:02:08 BST

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