Thanks for the reply Bax

I have concluded the following by testing it with my brothers transmitter and my TX crystal.

All my recievers are 100% ok - No jitters at all.
All my reciever crystals are 100% ok - testet in several recievers.

I have purchased this Transmitter secondhand, so I don't know how the former owner have handled it.

I have found some kind of grease in the antenna balljoint. (this seems a bit odd to me as the antenna contact must be trough the balljoint as I see it)
I can't seem to disassemble the transmitter enough to get to the ballbjoint from the inside to clean it completely.

After I have cleaned the balljoint as good as it was possible from the outside of the transmitter, it seems my rangeproblems have disapeared.

I have no problems disassembling my transmitter to do repairs myself, so if theres not supposed to be grease in the antenna balljoint, then I would like to know how to clean it properly by disassembling it properly.

Thanks in advance

Regards
Martin Ahelfeld Gripping
Aarhus - Denmark