FMN Logo

Light-signal systems receivers:    WZ LSA 2-3/G     WZ LSA 2-3/P     WZ LSA 4-3/G     WZ LSA 70-3/G     WZ LSA 70-3/P

Receiver WZ LSA 2-3/P

WZ LSA 2-3/P

Light-signal system receiver with synthesizer for the 2m band in board design

For the radio control of light-signal systems, we offer the receiver WZ LSA 2-3/P in the 2 m band (frequency used by public transport).

The receiver is equipped with a frequency synthesizer. One of the pre-programmed frequencies can be set on site using the DIP switch or the RS232 interface. No crystal change necessary. If more frequencies are required, they can be changed in a parameter file.

Additionally, we offer an analog field strength output in this version.


  • Quick detection of the ideal position
  • Recognition of occupied channels
  • Possibility to establish squelch circuit to prevent misinterpretation due to noise.


  • Most used radio receiver in light-signal systems
  • Designed for frequency range 2m
  • Developed according to the specifications of the German VDV
  • With frequency synthesiser
  • With  field strength output (RSSI)
  • ETSI EN 300 113 (Data)

Technical data

  • Frequency range: 146 ... 174 MHz
  • Channel spacing: 20 kHz
  • No. of channels: 512
  • Frequency response: 20 Hz ... 3 kHz
  • Demodulation: FM
  • AF output: AC coupled
  • Distortion factor: typ. 3 %
  • Voltage: 9 ... 15 V DC
  • Power consumption: typ. 60 mA
  • Interfaces:
  •   - 2-pin headers for HF input
  •   - 5-pin headers for operating voltage, AF output, RSSI output
  •   - 20-pin headers for DIP switch assignment, operating voltage, AF output, RSSI output, RS232 programming
  • Temperature range: -25 °C ... +75 °C
  • Sensitivity: typ. -115 dBm
  • HF operating mode: simplex
  • Weight: approx. 60 g
  • Dimensions: approx. 98 mm x 68 mm x 14 mm (LxWxH)
  • Certification: ETSI EN 300 113 (Data)
  • Options:
  •   - 12.5 / 20 / 25 kHz channel spacing
  •   - other frequency ranges and special frequencies
  •   - other power stages
  •   - integrated GMSK or FFSK modem

Subject to change and error.


Radio control of a light-signal system

The radio signal is triggered when the infrared beacon is passed

Application example: Radio control of the light-signal system
Application example

Product inquiry

Security Code
* Required fields

Contact partner

  •  André Körber

    André Körber

    Sales / Marketing / Technical Advice

    Anfrage an André Körber senden

    Security Code
    * Required fields
Render-Time: -0.421361