... 4GHz system Features: - When you plan to update your JR FM Transmitter to the newest high-tech 2.4GHz system, CF9 is ... an FM module. - Compatible with JR radios include: 347,388,783,U8,PCM10,PCM10S,PCM10SX,PCM10IIs,8103,9303. Specifications: Specification For Transmitter ... with Stronger resistance for Interference . - Hint for binding: The transmitter and receiver need to be at least 1 meter apart ...