Scenario 2: Outputting corrections using a TRIMMARK 3 radio

A construction base station such as an SPS Modular receiver has an internal 900 MHz radio and you want to transmit corrections on a Trimble TRIMMARK 3 radio connected to the SPS Modular receiver.

Solution

The TRIMMARK 3 radio comes with both a 7-pin Lemo to 7-pin Lemo cable and a 7-pin Lemo to 9-pin D-sub cable.

To connect the TRIMMARK 3 radio to the SPSModular receiver, do one of the following:

  • Use the 7-pin Lemo (SPSModular) to 7-pin Lemo (TRIMMARK 3) cable.

  • Use the Lemo-to-Lemo cable.

  • Use the 7-pin Lemo to 9-pin D-sub cable and then connect to the Modem port (9-pin D-sub connector) on the SPSModular adaptor.

To configure the system, do one of the following:

  • Use the Siteworks or SCS900 Site Controller software to connect to the receiver (either by cable or Bluetooth wireless technology). Start the base station and then configure RTK messages to be transmitted through an external radio. The SCS900 software will locate the TRIMMARK 3 radio and then allow you to set the radio channel. Then, use the front panel of the receiver to select Radio and Lemo (R+L) or (R+M) to turn on the internal 900 MHz radio transmissions.

  • Use the web interface to access the receiver setup. Select I/O Configuration / Port Configuration. Select the Serial 1 / Lemo option and select corrections to be sent on the Lemo port at those baud rate settings. If using 9-pin D-sub, then use the Modem port. While in the Port Configuration menu, also set the internal radio to transmit corrections.

  • Use the front panel of the receiver to set up the Lemo port and to select the radio on which to output the data (shown as R+L or R+M on the receiver display).