Hi All, I have a friend who is not on the soaring exchange and would like me to ask if the above Rx can be modified from three channels to obtain 4 or 5. The decoder number is BU4015BF. Your help will be appreciated. Regards John Ensoll [EMAIL PROTECTED] LSF1383 level II Builder,flier,flyfisherman in retirement http://www.canterburysailplanes.co.nz RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]