Narrow band professional multi channel receiver 70RX-T

The new designed FM receiver module 70RX-T from HM-Funktechnik is an absolut high end module with internal synthesizer and microcontroller to convert the external 8 bit wide channel information into the serial data protocol for the synthesizer chip. No complicate programming is needed. The module offers 139 channels in the european 70cm ISM frequency range from 433.05 to 434,79 MHz and corresponds to EN 300086 demands.

Upon request it is also available for frequencies within the range from 410 to 510MHz and a switching bandwith of 5 MHz max. The dual conversion system is simply a must for high end applications. The module has a remarkable selectivity, which allows its use in applications where several modules must be operated locally and on adjacent radio channels at the same time.

The excellent RF sensitivity of –116dBm by CCITT weighting allows its use for long distance signal transmissions.

The direct audio signal output doesn`t restrict its use for any kind of coding. Any type of recommendable signal can be used, even direct audio signals, e.g. speech.

The combination with our transmitter-modules 70TX-M1 or 70TX-S offers the user a perfect radio system with long distance communication at simplex- or half-duplex. Together with our remote control unit FSM24 you can reach 1500 m and more at free sight.


  • Narrow band multi channel receiver
  • with professional licence EN300113
  • Up to 256 channels
  • Very small size
  • Less current consumption
  • Data rate DC - 5kHz (up to 9600 Bd)
  • Analog and digital data
  • No licence required
  • compliance to R&TTE (99/5/EG)


  • Remote control systems
  • Industrial applications
  • Telemetry systems
  • Alarms
  • Security systems
Receiver 70RX-T with whip antenna
Receiver 70RX-T antenna
Receiver 70RX-T backview
Receiver 70RX-T backview


Communication Simplex
Frequency range 433.0625 - 434.7875 MHz (12.5 / 25 kHz raster)
  optional 410 - 510 MHz
Number of channels 139 channels (Standard ISM); max. 256 channels
Receiver mode Double Superhet
Sensitivity at least  -116 dBm  / 12 dB SINAD (CCITT-Filter)
Selectivity 15 kHz channel bandwidth
NF-Output 1,0 VPP    inverted
Data rate DC - 5 kHz (up to 9600 Bd)
Temperature range -25°C . . . +75°C
Supply voltage 5 - 11 V    (max. 4,6 - 12 V)
Supply current 69 mA (± 4 mA)
Dimensions 51.8 x 31.6 x 15 mm  (with lashes 61.8 x 31.6 x 15 mm)
Weight 28.5 g
Material stainless steel with M3 mounting lashes
Antenna SMA, optional SMB or MCX
Outputs Mute, RSSI, Lock Detect
Approvals R&TTE ( EN 300113 ) for Europe (433,0625 - 463,0625 MHz)

Data sheets 70RX-T (multi channel) ----> replaced by 70RX-T1

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