Topcon TRL-35, Operator'S Manual

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P/N 7010-0815
Chapter 1
1-1
Introduction
The TRL-35 is a transmit/receive/repeating Digital UHF modem. It is
a 35W high powered base radio that uses the same DSP technology as
is used in the GR-3 Digital UHF receiver.
The TRL-35 radio can be used to enhance the following survey-
related systems:
• As a high power transmitter/receiver external UHF radio for any
base system
For example, with the GB or Legacy Series GPS Receiver.
• As a high power repeater (not in PDL protocol currently)
Obstructions such as buildings, terrain, trees, and so forth greatly
affect the usability and range of any radio system. However, the
TRL-35 as a high powered transmitter/repeater provides an increase
in the operational range and effectivity of the system in unfavorable
environments.
The TRL-35 is compatible with:
• GR-3 Digital UHF Radio
• Existing Pacific Crest radios (currently only PDL radios using
GMSK modulation)
• Trimble radios using Trimtalk 450s (currently only Trimble
radios using GMSK modulation)
Simple features and configurations allow the TRL-35 to be adaptable
to most situations, and make it easy to use.
NOTE
The TRL-35 extends the operational range of the
UHF system. It does not increase the range beyond
the rover’s OAF limitation.