Narrow band single channel receiver 70RX-M2

The UHF receiver was designed as follover of the reliable for all discerning applications of the wireless data- and analog signal communication and beats him in nearly all items. At the same time the case becomes and the input voltage range was expanded.

We deliver the by default with 139 different frequencies for the european ISM band within a 12.5KHz raster. The module is optionally available for the frequency range from . Please ask for your desired frequency. The module can be reprogrammed during service within a range of +-2MHz without any changes.

To optimize the radio reception the Mute and RSSi signal are now available at the same time. Therefore the localization of the best position of the module is very easy.

The excellent RF sensitivity offers a long distance signal transmission. In combination with our 10mW transmitter-modules or you can build a perfect radio system in simplex- or half-duplex mode. Together with our remote control unit you can reach at free sight.

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 4th order butterworth filter eliminates noise- and disturb signals with high efficiency.


  • Narrow band single channel receiver
  • Very small size
  • Low current consumption
  • Data rate DC - 5kHz (up to 9600 Bd)
  • Suitable for analog and digital data
  • No licence required
  • Compliance to RED (2014/53/EU), EN 300220
  • FCC and Canada approvals


  • Remote control systems
  • Data communication
  • Industrial applications
  • Telemetry systems
  • Alarm systems
  • Security systems
Receiver 70RX-M2 with whip antenna
Receiver 70RX-M2 antenna
Receiver 70RX-T with SMB socket
Receiver 70RX-M2 socket


Communication Simplex
Frequency range 433.0625 – 434.7875 MHz     ( 12.5 / 25 kHz spacing )
Optional frequency range 406 – 476 MHz    (other frequencies on request)
Number of channels 1     reprogrammable during service
Modulation FM narrow band     analog and digital
Receiver type Double Superhet
Sensitivity at least –121dBm for 12dB SINAD ( CCITT filtered )
Mirror rejection Typical 60 dB
Spurious Response Rejection Better than 75 dB
Blocking Better than 80 dB
Intermodulation Typical 55 dB
Selectivity 15 kHz channel bandwidth
NF-output 0.8VPP inverted ( optional non-inverted )
Data rate DC – 5 KHz ( 9600 Baud )
Temperature range -25°C  -  +75°C     Optional -40°C  -  +80°C with TCXO
Supply voltage 3.3 - 14V     max. 3.1 - 15V
Supply current < 23mA ( ± 2mA )
Startup Time < 20ms ( Power On )
Dimensions 49,2 x 24,9 x 9,7 mm   with lashes 60,0 x 24,9 x 9,7 mm
Weight 19g
Material Stainless steel with M3 mounting lashes
Antenna λ/4 – whip antenna (teflon)
Outputs Mute, RSSI
Approvals RED ( EN300220 )     Europe( 433,0625 – 434,7875 MHz )

Data sheet 70RX-M2 (single channel)

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