RF output DOES NOT equal Composite!!!! - test-drb@ccmp.vtda.org

18 Jun 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