Section 6
TRUNKING OPERATING INSTRUCTIONS
CAUTION
When testing a radio, the analyzer generates a control channel signal. Take care to prevent this
signal from unintentionally capturing other radios in the area. Observe the following precautions:
Do not use an antenna on the analyzer for over-the-air testing.
Use double-shielded cables on the analyzer to carry signals to and from the radio.
Locate the analyzer at least 35 feet from the antenna of a unit that is working in the same system
that the analyzer is testing.
Adjust the squelch to where the LED indicator for squelch just turns off or is closed. When the
signal from the radio is present, the squelch LED will illuminate indicating that squelch has been
detected and there is a signal present. When testing Type 1 radios, it is advisable to set the
squelch control to the open position (fully counter clockwise with squelch LED illuminated).
6-1 INTRODUCTION
The R2670 Digital Communications System
Analyzer is an enhancement of the R2600 Series
Communications System Analyzer. Refer to
sections 5, 6, and 7 of the General Operation
section of this manual for general installation in-
formation, a description of the control functions,
and general operational information. The following
sections of this manual contain information on how
to connect trunked radios under test to the analyzer
and how to set controls and indicators to obtain the
correct screen display.
Error/Warning Messages
Refer to Appendix E for a listing and description
of setup and radio error messages. Messages
common to all the R2600 Series equipment are
detailed in paragraph 6-4 of the General
Operation section of this manual.
6-2 TEST SETUP
6-2.1 Connecting a Radio
Use a 50 ohm BNC cable and an N to BNC adaptor
to connect from the RF I/O port of the trunking
analyzer to the antenna port of the radio as shown
in figure 6-1.
CAUTION
Observe the input power ratings and
warnings of the analyzer to insure that no
damage occurs to the analyzer.
87
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