TDL450B radio

The high-speed wireless Trimble TDL450B UHF data radio broadcasts, repeats and receives data used by Trimble GNSS receivers for real-time correction data. Solve signal strength issues and make adjustments to stay productive, even in the toughest conditions. With advanced wireless Bluetooth communication and rugged design, the TDL450B UHF radio enables easy integration with GNSS receivers, even in harsh environments.

The radio has a user interface designed to offer full control over the radio field setup, and contains useful tools to troubleshoot and optimize your setup.

The TDL450B is a single-band 450 MHz Tx/Rx UHF radio.

An external UHF radio can be used to add:

  • UHF transmit capability to an MPS566-000 or MPS566-2-00. These receivers do not have an internal radio.

  • 450 MHz transmit capability to an MPS566 900 receiver for a mixed fleet of rover receivers.

Specifications

Frequency range: 403 MHz to 473 MHz (depending on the region; some channels are not allowed)

Over-the-air link rate: 4,800 bps to 19,200 bps

Configurable maximum Tx power: Up to 35 W

Corrections for GNSS receivers: 1 Hz RTK

Environment: IP67 rated

Vibration: MIL-STD-810F

For full specifications, go to geospatial.trimble.com/en/products/hardware/trimble-tdl450b-uhf-radio.

Cables

The following cable connects the radio to a PC:

The following data cables are included in the TDL450B-HH and TDL450B-HE kits to connect to the GNSS receiver:

  • P/N 130916: Receiver USB 7-pin to RS-232 TDL 5-pin

  • P/N 130918: Receiver RS-232 7-pin to TDL RS-232 5-pin. Connects to the Lemo port (COM1) on the receiver.

The power cable accessories for the TDL450B radio are:

  • P/N 130919: TDL450B radio SAE power cable

  • P/N 83223-02: Cable - Power 1.8 m SAE to Battery Clips

  • P/N 89073-00: Cable - Splitter 0.25 m SAE to SAE/SAE

Connecting the radio and receiver

  1. Ensure the receiver has firmware version 5.64/6.24 or later installed.

  2. Connect the TDL450B radio to the receiver by either using a serial cable or Bluetooth connection.

    Refer to the TDL450B Radio Help - Installation.

  3. Configure the TDL450B radio using the front panel and keypad.

    Refer to the TDL450B Help - Configuring the radio using the keypad and display.

  4. On the radio front panel: Enable the Remote Control option in the Device Settings menu.

    Refer to the TDL450B Radio Help - Device Settings.

  5. Use the Siteworks software to configure the receiver as a base station with an external radio. The radio must be correctly configured before connecting to the Siteworks software. The software will locate the radio and then set the receiver COM port.

  6. Use the Siteworks sofware, the receiver web interface or front panel to set the serial port on the receiver to match the serial port on the radio:

    Radio default port settings: 38400 8/N/1

    • If using the receiver web interface to configure the settings:

      1. Configure an i/o port for the radio stream. Select I/O Configuration / Port Configuration. Select the Serial 1 / Lemo COM1 option and select EXT-RADIO. Select the Baud field to 38400, and the Parity field to N.

      2. Set the receiver to use the external radio. Select Radio / Radio Selection and then select External radio.

      3. If necessary, make any changes to the radio settings. Select Radio / Radio Configuration. Changes made in the web interface are updated in the radio.

    • If using the receiver front panel to configure the settings:

      1. Briefly press and then .
      2. Scroll down to the Serial Ports menu and press .
      3. Select the COM1 option and select EXT-RADIO.
      4. Select the Baud field to 38400, and the Parity field to N.

        See Configuration screens.

More information

Refer to the TDL450B Radio Help.