I just spoke with a friend who is FCC licensed to work on microwave transmitters. After he explained how the circuitry to drive the crystals works, and how to pulse them to work at resonant frequencies and all that, he said it boils down to this: Put the crystal in. Range check it. If it works, you're good. I kinda figured. If someone can top that, go ahead. -Paul RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]

