User's Manual

5 Setting up the Receiver

46 SPSx50 Modular GPS Receiver User Guide

For more information, see Chapters 5 and 7, and the SCS900 Site Controller Software

User Guide <UPDATE CROSS-REF>.

SPS770 Modular GPS receiver

The most common data link for Real-Time Kinematic (RTK) operation is a radio. The

SPS770 receiver is available with the following internal radios:

• 410–430 MHz (Rx only)

• 430–450 MHz (Rx only)

• 450–470 MHz (Rx only)

Note – “Rx” indicates that the receiver receives corrections.

The SPS770 GPS receiver does not have an internal transmit radio. To broadcast

corrections, connect the receiver Lemo port (Port 3) to an external transmit radio or a

cell phone.

The SPS770 receiver 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 SPS770 receiver, you need an external power source

for the radio—except for the SNB900. The SNB900 radio contains an internal battery.

Use the external radio’s configuration program, or display and keypad, to configure the

radio modem separately.

For more information, see Chapters 5 and 7, along with the SCS900 User Guide

SPSx80 Smart GPS antenna<this section needs to be updated for the x80.

Copied from the SPS770>

The most common data link for Real-Time Kinematic (RTK) operation is a radio. The

SPS770 receiver is available with the following internal radios:

• 410 – 430 MHz (Rx only)

• 430 – 450 MHz (Rx only)

• 450 – 470 MHz (Rx only)

Note – Rx indicates that the receiver receives corrections.