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When testing a radio, 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.
21-1
INTRODUCTION
The Project 25 features are an enhancement to the
R2670 Communications System Analyzer. The
following sections of this manual contain
information on how to connect Project 25 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 L for a listing and descrip-
tion of error and warning messages related to
the Project 25 test mode.
Section 21
OPERATING INSTRUCTIONS
CAUTION
21-2
To view the software version of the R2670
Analyzer, turn power on and wait for the display
to appear on the screen. Press the SPF hard key,
and move the cursor to "VERSION." Select the
display table softkey. This will configure the
analyzer to generate a screen that displays the
PROJ 25 software version (Figure 21-1).
Move the cursor to the PROJ 25 position and
select the view options softkey. A screen similar
to Figure 21-2 will be displayed and indicates the
analyzer
algorithms available.
Select return softkey twice to return to the PROJ
25 CONV mode screen.
257
SOFTWARE VERSION SCREEN
options
installed
and
encryption
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