没有提供图片
| Services Available | |
|---|---|
| Repair | No | 
| Calibration | No | 
| Free Support | No | 
This E.F. Johnson, UHF, half-duplex transceiver supported the 403-430, 430-450, 450-470, or 470-512 frequencies. The RF200 required an FCC frequency assignment and a frequency-matched antenna and cable. It was powered by the data logger or an external rechargeable 12 Vdc power supply (5 Ahr minimum capacity). E.F. Johnson model 3410