Hi Gang, I hate asking stupid questions.... I have a RD6000 and this weekend I bought a Hitec 555 Rx with a crystal to match. My problem is the 555 is not responding. I'm wondering what I am doing wrong. Could I have the wrong crystal? Tx is channel 30 and the crystal is 30. TIA, Jon RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]