Hi,
I just thought I would update you on this to help others who may be in the same situation.
I contacted Nick Gardiner at Pilkington. He was very nice and cooperative, but was unable to advise me how exactly the aerial should be connected. He did say that they no longer use spade terminals and he said he would send me a couple of new terminals to see if they would help. I received the terminals as promised, picture attached.
It appears from this that each filament in the screen is attached to a separate aerial cable and in this case they appear to be DAB??
I was under the impression that each aerial cable needed to be earthed, but this set up would only support connection to the inner pin connection, so created more questions than answers.
I bought an amplifier as mentioned by John, but I also bought a cheap telescopic aerial, so that I could try out all permutations.
Anyway, to cut a long story short, I decided that what I had in the screen was in fact two aerials, presumably to get a wide signal and each spade was to be connected to the centre core of the aerial cable; no earth as such.
I bought a male aerial terminal and connected both spades to the central pin (and the earth cable mentioned further down to the outside skin).
(This is a picture shows the set up, but in this case it is still connected to the amplifier)
I tuned the radio to a weak station and tried this with the booster and seperately with the telescopic aerial. The booster gave too much feed back and the telescopic aerial was no better than the screen aerial. One further improvement was obtained by earthing the male terminal I had bought to a point near the spades.
So… I have simply connected the new male connector to an extension aerial cable to the radio, no amplifier and so far it seams to work fine.
The car is in the garage and still not finished, so I cannot comment on how it will perform out on the road though.
Paul