Specifications
OG_STD-302N-R_v15e  Circuit Design, Inc. 
3
OPERATION GUIDE
GENERAL DESCRIPTION & FEATURES 
General Description 
The UHF FM narrow band semi-duplex radio data module STD-302N-R is a R&TTE and RoHS 
compliant, high performance transceiver designed for use in industrial applications requiring long 
range, high performance and reliability. 
All high frequency circuits are enclosed inside a robust housing to provide superior resistance 
against shock and vibration. A narrow band technique enables high interference rejection and 
concurrent operation with multiple modules. 
STD-302N-R, a narrowband module with 25 kHz channel steps, achieves high TX/RX switching 
speed, making it an ideal RF unit for inclusion in feedback systems. 
Features 
  10 mW RF power, 3.0 V operation 
  Programmable RF channel 
  Fast TX/RX switching time 
  High sensitivity -119 dBm 
  Excellent mechanical durability, high vibration & shock resistance 
  R&TTE (EN 300 220) / RoHS compliance 
Applications 
  Telem e try 
Water level monitor for rivers, dams, etc. 
Monitoring systems for environmental data such as temperature, humidity, etc. 
Transmission of measurement data (pressure, revolution, current, etc) to PC 
Security alarm monitoring 
  Telecontrol 
Industrial remote control systems 
Remote control systems for factory automation machines 
Control of various driving motors 
  Data transmission 
RS232/RS485 serial data transmission 










