I think the answer here is that JR (probably from complaints) believes their (JR) receivers on channels 11 - 14 are 'at risk' from FM channel 56 - 60 Txs (any make). Thus they have stopped supplying the Rx crystals - channels 11 - 14. Question: Do they sell TX modules for channels 11 - 14? Probably no more. I do have both (JR Module and JR Rx) on channel 12. It (Rx) has not been tested 'under fire'. since I have owned it. I have 'contested' the JR Tx (Ch 12) using both RCD 555 and FMA receivers with no sign of interference (as expected). Regis -----Original Message----- From: Mike Stump [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 07, 2000 9:24 AM To: bobless; [EMAIL PROTECTED] Subject: Re: [RCSE] Original Crystal Question JR has recommended not using, then discontinued stocking parts for channels 11-14... there is a reason.. want to risk your planes? do what you want.. At 06:00 PM 12/6/00 -0700, you wrote: >All I really wanted to know is if I can switch my JR 549 recievers to >channel 11, to be used with a Stylus transmitter? Do I have to use JR >crystals (not available channels 11-14) or not. Can I use another brand of >crystals or not? >Thank you > > >RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] > > Stumper [EMAIL PROTECTED] 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]