UHF-FM Synthesizer-Receiver 70RX-S1

( replaced by 70RX-S2 )

 

The new designed FM-receiver module 70RX-S1 from HM-Funktechnik is a high end receiver 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 300220 demands.
Upon request it is also available for frequencies within the range from 410 to 510 MHz 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 –121dBm by CCITT weighting offers a long distance signal transmission.
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 2000 m and more at free sight.




 

Features

- Narrow band multi channel receiver
- very small size
- less current consumption
- Data rate up to 9600 Bd
- No licence required
- compliance to R&TTE (99/5/EG), EN 300 220
- FCC and Canada notifications

Applications

- Remote control systems
- Industrial applications
- Telemetry systems
- Alarms
- Security Systems

 

 

Specifications:

Datasheet as PDF


Dimensions and pin-description as PDF


Communication Simplex
Frequency range 433,0625 - 434,7875 MHz(12,5 / 25 kHz Step)
  optional 410 - 510 MHz step selectable
Number of channels 139 channels (Standard ISM); max. 256 channels
Receiver type Double Superhet
Sensitivity at least  -121 dBm  / 12 dB SINAD (CCITT-Filter)
Selectivity 15 kHz channelbandwidth
NF-Output 1,0 VPP    inverted
Data rate DC - 5 kHz (9600 Bd)
Temperature range -25°C . . . +75°C
Supply voltage 5 - 11 V    (max. 4,6 - 12 V)
Supply current 25 mA (± 2 mA)
Dimensions 49,7 x 25 x 12,5 mm  (with Lashes 59,7 x 25 x 12,5 mm)
Weight 21 g
Material stainless steel with M3 mounting lashes
Antenna λ/4 - Whip antenna (Teflon)     optional SMA, SMB or MCX
Outputs Mute, RSSI, Lock Detect
Approvals R&TTE (EN 300 220)  for  Europe (433,0625 - 434,7875 MHz)
  FCC (Part 15) for  USA (420 - 510 MHz)
  CAN  for  Canada (420 - 430 / 450 - 470 MHz)