Leica Geosystems GPS System 500 - Technical Reference Manual - Manual (Page 41)

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2. Set-up and Connection Technical Reference Manual-4.0.0en
Use
The Receiver and TR500 (if used) can be assembled to
make one unit. This clips to the tripod leg. Connections
are made to the GPS and Radio Antenna. Note that the
Receiver can be programmed with the TR500 prior to use
which can then be omitted from the set up.
The Radio Antenna is mounted on the second tripod. This
increases the height of the Radio Antenna and therefore
maximizes radio coverage.
The SR510 and SR520 can only be used as a DGPS
reference station if they are fitted with the DGPS option.
They cannot be used as a Real-Time Reference station.
The SR530 can be used as either a DGPS or Real-Time
reference station. Real-Time and DGPS are fitted as
standard on the SR530.
Assumptions
1. GPS Antenna is mounted directly using screw fitting.
If using stub and GAD 31 adapter, procedures may
vary slightly.
2. Standard Radio modem is used. (Mounted in Radio
Housing).
2.8 Equipment Setup - Real-Time Reference, Two Tripods