Device settings

UI Level

You can select either Expert level with all options displayed or a simplified set of menu options in Simplified mode. See Menus.

Serial port settings

Enables you to configure the radio's serial port communication to the GNSS receiver. Please refer to the GNSS receiver settings and set the TDL450B radio identically.

Owner name

This menu enables you to name the radio. The default name is the serial number. You can edit this name using the keypad.

Serial Number

This is the unique serial number of the radio.

Firmware version

The firmware version of the radio. When Trimble releases new firmware for the radio, you can check if the radio is up to date.

HW version information

These are the different hardware component versions. This can be useful for servicing and troubleshooting.

Bluetooth name

The Bluetooth name of the radio used by other Bluetooth devices to identify it.

Power management

The radio does not transmit with 9 V to 11 V power input as this creates excessive current drain. All other functions still work. At 90% duty cycle, The radio uses the approximate amount of power as per the following table:

Transmission power

1 W

5 W

10 W

25 W

35 W

Absorbed power

30 W

50 W

80 W

100 W

115 W

The radio has protection circuits that automatically modify the transmission power as the input voltage drops below or goes above certain levels.

  • The radio switches to Energy saving mode 1 when the input voltage falls below the value specified in Minimum input voltage before energy saving mode 1. In this mode, the transmission power is limited to 5 W.

  • The radio switches to Energy saving mode 2 when the input voltage falls below the value specified in Minimum input voltage before energy saving mode 2. In this mode, the transmission stops but the radio stays on, enabling you to view the radio status and why it is no longer transmitting.

You can set the two energy saving mode voltages in the Device Settings menu to suit your needs.

The radio is also protected against an input voltage above 30 V or a reversed polarity voltage input. You can set the max voltage alarm to suit your needs.

 

The following menu options are available to configure and monitor TDL450B power management:

Auto Power On

The options are Disabled or Enabled.

This feature enables you to automatically power the radio when the input voltage is above 9 V. If this option is disabled, press the Power button to power the radio.

Voltage

Shows the input voltage.

Operating mode

Informs you if your input voltage is too high or too low for a normal operation. This is useful for troubleshooting.

Min voltage 1

Enables you to set the voltage at which the radio switches to Energy saving mode 1.

Min voltage 2

Enables you to set the voltage at which the radio switches to Energy saving mode 2.

Max voltage

Enables you to set the voltage at which the radio notifies you that the input voltage is too high. You can set this from 8 V to 35 V.

Display settings

You can set the display back-light intensity (Medium, High) as well as the back-light timeout (10 s, 30 s (default), 1 min, 2 min, 5 min). The OLED display is a long-life display but it is recommended to not unnecessarily extend the timeout.

Alarms

Each time the radio displays an alarm, it is kept in the alarm list for troubleshooting purposes. You can review the alarms and acknowledge them. If the reason why the alarm was set is no longer present, you can delete the alarm from the list.

Input voltage: Indicates when the input voltage is higher or lower than the user defined limits. Remedy this alarm by adapting the input power voltage.
Temperature: Indicates when the radio internal temperature is too high and the radio reduces the transmission power. Remedy this alarm by setting up the radio with the fan tray or in a cooler place. Reducing the Tx power will also help.
Saturation: Indicates when the signal level the radio receives is too high, creating a saturation effect. Remedy this alarm by reducing the power of the radio transmitting the signal or by moving the Rx radio further away from the Tx radio.
CSMA: Indicates the frequency the radio is trying to transmit on is already busy. This stops transmission. Remedy this by choosing a different Tx frequency.

Remote Control

The options are Disabled or Enabled.

In the near future, for a selection of Trimble GNSS receivers, the field applications will be able to control the radio by remote control. In remote control mode, the radio communicates its status to the field application.

If the GNSS receiver is not compatible with this functionality, the radio automatically pauses remote control, but you still have full control of the radio using the keypad and display.

When you connect the TDL450B radio to a Trimble GNSS compatible receiver, the radio automatically switches to remote control mode. You can still use the keypad and display to change settings on the radio; these are updated in the field application one minute after the last action on the keypad.

You can manually switch the remote control to off.

This is necessary if you use a non-compatible GNSS receiver when using the TDL450B radio as a UHF radio receiver.

Profiles

You can save up to ten profiles. Profiles remember the following settings:

  • Radio operating mode (Base/Rover, Repeater, or Receive only)

  • Rx and Tx channels

  • Wireless mode

  • Tx power

  • BT configuration

  • UI level setting

  • Auto power on setting

  • Energy saving voltage levels for mode 1 and 2

  • Maximum input voltage before the alarm is set

  • Display brightness and timeout

The first profile in the list is permanent and contains the default radio settings that were present when you received the radio.

You can save the current setting in a profile in the Setting Profiles menu.