Trimble Inc. 5935524-B1 Benutzerhandbuch

SPSx80 and SPSx81 Smart GPS Antennas User Guide     

Features and Functions     

Base station only, or rover only, operation

Base station operational range limited only by normal restrictions common to 
UHF radio transmissions

Integrated transmit radio (450 MHz Base configuration only)

Entry level price point for lower cost of base station

Can be upgraded to the SPS780 Max

2 Hz measurement rover receiver update rate

Rover operational range limited to 1.5 mile (2.4 km) from base station

Entry level price point for lower cost of rover

Can be upgraded to the SPS780 Max

Base/Rover receiver interchangeability for ultimate GPS fleet flexibility

Rover option offers 10 Hz measurement update rate

Range limited only by normal restrictions common to UHF radio transmissions

Operates as a rover within a Virtual Reference Station (VRS) network for 
operation without a conventional base station 

Integrated transmit/receive radio provides base station and rover operation 
capability (900 MHz variant contains receive only radio and utilizes the SNB900 
radio at the base station for transmit capability) 

The SPS781 Smart GPS antenna has the same features as the SPS780 as well as the 
following additional features:

RoHS compliant

Can use GPS L1/L2/L2C signals

Upgraded hardware for improved satellite tracking and positioning 
performance

72-channel receiver 

4 SBAS channels