Instrument components

• Components of the TRU35 radio.

  

  1. High/low power switch: switch between high and low transmitting power.

  2. Power on/off: turns on/off the radio.

  3. Port 1: 5 Pin power/serial port: to connect the cable to external power and GNSS base receiver.

  4. Channel switch: switch radio working channel.

  5. Port 2: TNC Radio antenna interface: to connect radio antenna.

  6. LED indicators: LED indicators for information on the radio status.

  7. Display: indicates the channel in use.

Keyboard

• Keyboard is used to power on/off the radio, and switch channel and power.

  

  1. Power on/off: turns on/off the radio.

  2. High/low power switch: switch between high and low transmitting power.

  3. Channel switch: switch radio working channel. Only TX channel can be switched.

LED indicators

• The TRU35 has Light Emitting Diode indicators. They indicate the basic instrument status.

  

  1. Data transmission LED:

     1. Flashing green: flashes according to the transmission frequency. The default status is off.

  2. Data reception LED:

     1. Flashing green: flashes according to the receiving frequency. The default status is off.

  3. Connectivity LED:

     1. Solid blue: radio is connected.

     2. Off: radio is not connected.

     3. Flashing blue: data transmission.

  4. High/low power LED:

     1. Green: high power.

     2. Off: low power.

  5. Power LED:

     1. Solid green: power on.

     2. Flashing green: warning. Voltage < 11.3 V: Normal data transmission. Voltage < 10.5 V: Data transmission stops. Temperature > 90 °C: Data transmission stops.

Display

• The digital display on the TRU35 panel shows the current transmitting channel. The Transmitting frequency is generally different for different channels.

  

  • 1 - 9 - 0 (channels 1 - 10) a - f (channels 11 - 16).