Installation Manual

Table Of Contents
14221-1850-4000, Rev. A
89
12.3 PERFORMANCE TESTS
This section includes procedures to verify the performance of the installation’s mobile antenna system.
There are two (2) test procedures in this section:
Transmitting into a 50-Ohm RF Terminator (“Dummy Load”) - Section 12.3.1 - This test verifies
the radio’s RF output power is satisfactory.
Transmitting into the Mobile Antenna - Section 12.3.2 - This test verifies the radio’s multiband
antenna system is satisfactory.
If the vehicle’s engine must remain running, the vehicle location should be well
ventilated so exhaust fumes from the engine do not cause harm!
The accuracy of test results depends upon a DC power source in the range of 13.6 volts
DC ±10%, with a current capacity of greater than 20 amps. Make sure the vehicle’s battery
is fully charged by running the engine for a few minutes before the test, and keep the
engine running during the test procedures. Abide by the previous WARNING!
If a vehicle equipped with this radio requires jump-starting, the radio installation’s main
fuse (20-amp) should be removed from the holder prior to jump-starting. Doing so will
prevent damage to the radio system.
The multiband antenna element is an untuned antenna with a Voltage Standing-Wave
Ratio (VSWR) of 3:1. If an antenna analyzer is available, the antenna installation
should be tested with it prior to performing tests presented in this section. Tests with an
antenna analyzer can be performed without powering-
up the radio. Tests with an
antenna analyzer are beyond the scope of this manual, and therefore, an analyzer is not
listed in Table 12-1. Refer to the analyzer’s operating/user manual for complete testing
instructions.
Prior to installation, the radio’s power level should be configured appropriately. The
wide range of power levels indicated in the following procedures takes into account
such things as: customer’s requirements; measurement errors, especially to include
uncalibrated equipment; cabling losses; and voltage and temperature variations. By no
means should the result from Performance Testing in this section be construed as the
exact value of power level output from the radio, as the value is set and more accurately
measured in the factory. The values obtained in these test procedures determine a
successful installation only.
NOTE
NOTE