Long range two way RS232 RF radio data transceiver module

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    2017-12-30 09:13

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Hong Kong Safe Guard Co. Limited
By certification [File Integrity]



(86 755) 82908961 Ext:808 (86 755) 23736289




Room 21L, Bld. 9C, Baoneng, Technology Park, No.1 Qingxiang, Road, Longhua New District, Shenzhen, Guangdong, China (518000)

Product details
Model Number: SG-303(02) Brand Name: Safe Guard Key Specifications/Special Features: Long range two way RS232 RF radio data transceiver moduleModel: SG-303SG-303 wireless data transmission radio, is a long-distance wireless data transmission products. Its advantages of small size, metal shell, good shielding performance, strong anti-interference, the internal use of integrated amplifier, TCXO reliability device and a built-in watchdog that ensure its good stability and high reliability. Half duplex communication working mode which is more convenient for the user to provide two-way data signal transmission and detection and control functions. The send and receive time less than 50ms and timeliness. Suitable for wireless data acquisition, industrial control, the measurement and control of the oil field, watermark monitoring important industry.Features:
1) Power and sensitivity:
Radio frequency output power is more than 5W,
high receiving sensitivity -120dbm (1200bps);
-117dbm (2400bps,
-105dbm (9600bps)
2). Multiple frequency, to meet various customers' needs
Carrier frequency can be 220-220 MHZ, 450-470 MHZ.
3) High speed wireless communications and data buffer.
Air rate is greater than or equal to a serial port rate can continuous transmission infinite data, when the air rate is less than or equal to a serial port rate, temporary storage buffer then transfer.
4)Transparent transmission, convenience for the user.
Radio after receiving the data needs to be sent, launch will start automatically without user to send and receive control.
5) Low power consumption
Receiving current < 60 mA, emission current < 1.5 A, hibernation current < 1 ma.

Parameters of radio modem
Frequency 230MHz/400MHz/420MHz/450MHz
Working mode Half-duplex
Channel spacing 25 kHz
Bit rate 1200/2400/4800/9600/19200bps (option)
Channel rate 1200/2400bps (option)
Transceiver conversion time <50ms
Receiving sensibility -117dBm(2400bps)
Working temperature -40~+80℃; (industrial grade)
Data format 8E1/8N1/801(other format also available, for example:9 data bits)
Power supply DC12V(can also custom made according to your request)
Transmission distance 12Km(matched with magnetic antenna in open air,1.5m length)
Dimension 85x58x16mm (without radiator)
Power 5W
Transmit current <1.5A
Sleep current <1mA
Clutter and images rejection ≥70dB
Spurious Response ≥70dB
Modulation frequency offset ≤3%
Modulation distortion 5mV
Size 85x58x16mm
Shipping Information:
  • FOB Port: Shenzhen
  • Lead Time: 3 - 5 days
Main Export Markets:
  • Asia
  • Australasia
  • Central/South America
  • Eastern Europe
  • Mid East/Africa
  • North America
  • Western Europe