Bob, Please accept my apologies, for the apparently sweeping statement, but I stated what is IS my firm opinion and conclusion base on the tests I did with both the JR and Weatronics Rxs and the information I have read so far. I don't know enough ( very little) about PCM to debate the issue, I'll leave that to the experts such as Gordon.

In view of what happened at Nall I will move to 2.4 , JR and Weatronic, in the near future, but only after I see more experience gained with the JR 2.4. I look forward to seeing DS and DB flying 2.4 in NI and discussing it with them.

I still think frequency control at Nall is flawed because we do it another way at events (and at my club field,) in the UK and Australia, no pin, no Tx . Guys in possesion of Txs to leave the field could well be asked to remove the RF module. Because there have been no incidents (except DS's) so far doesn't mean the system cannot be further improved.

What I am ever more convinced is that having a listen to my frequency before flying on my Icom 5 receiver IS good practice !

Again, my apologies, now I'm going flying and will leave this debate to others. !

Regards,

David Gladwin.