Trimble Inc. 6248192-B1 Manuel D’Utilisation

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SPSx80 Smart GPS Antenna User Guide     
39
Setting up the Receiver     
5
External radio-modems
The most common data link for Real-Time Kinematic (RTK) operation is a radio. The 
SPSx80 is available with the following internal radios:
410 – 430 MHz (Tx/Rx, Rx only, or Tx only)
430 – 450 MHz (Tx/Rx, Rx only, or Tx only)
450 – 470 MHz (Tx/Rx, Rx only, or Tx only)
900 MHz (Rx only)
Note – “Tx” indicates that the radio transmits corrections. “Rx” indicates that the receiver 
receives corrections. “Tx/Rx” indicates that the radio both transmits and receives 
corrections.
If the SPSx80 does not have an internal transmit radio, or you want to connect to a 
higher powered external transmit radio or cellular modem, use the DB9 port, the Lemo 
port, or Bluetooth wireless technology. 
The SPS780 supports the following Trimble base radios:
TRIMMARK 3
Trimble SNB900
Trimble PDL450
Trimble HPB450
The receiver also supports third-party transparent radios and third-party cellular 
modems.
To use an external radio with the SPSx80, you need an external power source for the 
radio—except for the SNB900 radio, which contains an internal battery. To configure 
the radio modem separately, use the external radio’s configuration program, or display 
and keypad.
ACU
4-pin Hirose
ACU
44147
Lemo
SPSx80
Table 5.1 Connecting to a Trimble controller running the SCS900 Site Controller software (cont)
Use this cable 
connector …
and connect the 
cable to …
Cable part number