bluskis
AOPA should be giving you the information, then you write to your MP, and as keef suggests you get ignored.
Not sure whether
this is the link you are talking about, but it might interest some. One para says:"
On the downside, Mode S wasn’t really designed to pass huge amounts of data. Update rates of changing traffic situations may drop to critically slow speeds in areas of dense traffic. Also, Mode S doesn’t have a sufficiently wide bandwidth to permit the exchange of weather graphics, text data (e.g. clearances, weather reports) and display traffic. Mode S, you see, already operates on a very crowded frequency—the one that supports TCAS and ground-based surveillance radars. With all those radar sweeps and TCAS interrogations and replies, it could be difficult to use the frequency to display all traffic.
So it isn't too far fetched that you get to pay thousands to install Mode S in your little planes, all the little planes overload the system, and you get told to turn it off