Radio

Internal radio

The instrument has an internal radio to support robotic operations.

The internal radio is a 100 mW radio that operates in the public free 2.4 GHz band. The radio uses frequency hopping technology to reduce radio interference and maintain radio communications in even the harshest RF environment.

The instrument radio baud rate is 115200 bps. This high baud rate reduces the measurement latency, which ensures that a measurement viewed at the pole is received 100 msec after the measurement is sent from the instrument.

To maintain radio communication with the instrument, the T70 at the pole must also be connected to a 2.4 GHz external radio. The radio for the T70 is available as an optional integrated module in the Trimble robotic holder. The radio for the controller is also available as an optional integrated 2.4 GHz radio module.

External radio 2.4 GHz

An external radio is available as an option for robotic measurements when using a controller not fitted with an internal radio. The External Radio 2.4 GHz uses one 7.4 V Li-Ion battery as power supply. This will give the radio 15 hours with a 2.4 Ah battery. For technical information see Radio.

1 Indicator LED
2 COM Port
3 Battery

For more information, see Battery overview.

NOTE – Always remove the battery from the external radio after use.