I'm glad you got my message you probably noticed I sent the message twice. 
Didn't think the first one got through. That was my first try at sending a 
message on a bbs. Yes, the doppler system is expensive. Try pricing the 
transmitter finger-printer which would be an essential tool to go with the 
doppler system. Anyway glad you got the information, hope you have good a 
good time building your own system, to complicated for me to try.
73's from Don 
--- FMail 1.02
---------------