On 15 Jul, 19:14, Nate Bargmann
wrote:



I then took, as an experiement, my 2m areial co-ax, plugged it in and
tuned to a good local MW signal. Exactly the same phenomena occurs.

Without the shield connected to the frame of the radio, it no longer acts
as a shield as you've noticed. This is normal.

Sorry , I do not understand that bit.

What I meant was when the shield was loose I can pick up the station
but as soon as I tightened it the signal went. This was on the 2m
antenna which in recevie only mode should work. This implied to me
that either both cables are in error or I am doing something very
wrong.

Andre