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Transmitting and Receiving Simultaneously (Bidirectional Transceivers) with Radius®
Transmitting and Receiving Simultaneously (Bidirectional Transceivers) with Radius®

Can LISNR® Radius® listen and broadcast tones simultaneously? Can regular Transmitters/Receivers be used with Transceivers?

Updated over a month ago

Yes, the Radius® 3.0 SDK has Transceiver (Transmitter and Receiver) functionality. This allows sending and receiving of tones simultaneously on separate non-overlapping channels (referred to as Transmit and Receive Channel).

The following Transceiver settings must be selected when creating a single Transceiver:

  • Transmit tone profile

  • Transmit channel

  • Receive tone profile

  • Receive channel

Two Transceiver objects should be used together to send bidirectional data. When they are created, they should be using compatible Transceiver settings. For example:

  • Merchant Transceiver device is transmitting kiosk information with Radius and listening for a response from a nearby consumer device.

    • Transmit tone profile: Point1000

    • Transmit channel: 0

    • Receive tone profile: Zone66

    • Receive channel: 2

  • Customer Transceiver device is listening for kiosk information with Radius®. Once it has detected a tone from a nearby kiosk, it will transmit a response tone back to the kiosk.

    • Transmit tone profile: Zone66

    • Transmit channel: 2

    • Receive tone profile: Point1000

    • Receive channel: 0

Transceivers and individual Transmitters or Receivers CAN be used together because the corresponding frequencies of the channels and tone profiles are the same.


If a bidirectional implementation seems best for your use case, you can discuss more in detail with our Customer Success team by emailing techsupport@lisnr.com.

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