1. Instruction 

The FC-301/D Series of RF Link Modules from Friendcom utilizes the latest technology in its design and manufacturing. Both the UHF and VHF models are PLL (Phase Lock Loop Synthesizer) / microprocessor controlled, and offer one to 5 watts of power with 16 channel capability. Multiple functions including AC audio coupling,  walkie-talkie etc. When attached Modem, 301D can transmit data directly. 2400bps Modem board is an optional accessory, if the data transmission is required in the application.

2. Applications

1. Industrial telemetry & wireless remote control
2. Gas and oil flow monitoring
3. Electricity, water, and gas utilities
4. Earthquake, weather, environmental protection and urban lighting control
5. Vehicle tracking and asset tracking systems
6. Water monitoring, waste water management and irrigation control 
7. Railway, police, army automation system
8. Aerial defense and fire alarm system
9. Wireless Paging system

3. Technical specification