Installation Guide

156-90000-508 G3
Installation Guide
11
4. Trouble-Shooting and Testing
The checks described below should be done at annual intervals or whenever deterioration in performance
is noted.
4.1 Equipment Required
• 13.8 VDC (nominal) car battery, or
13.8 VDC/20A regulated power supply (In the case the unit is not installed in a vehicle)
• In-line watt meter (50W range)
• Radio service monitor (IFR or equivalent).
• Cable with mini-UHF male connector to connect G3
to the service monitor.
• Dataradio test commands script version 0.01*
4.2 Basic Tests
Recommended checks:
1. Transmit and Reverse power output
2. Carrier frequency error
3. Frequency deviation
4. Receivers RSSI Check
5. RF Data Link test between a G3 and a base station.
6. GPS test
- Refer to Table 2 for checks 1 to 5.
- Refer to paragraph 4.3.1 for check 6.
Important note: Before proceeding make sure that the service monitor has been recently calibrated and
has warmed up for at least the time specified by its manufacturer.
Some reported frequency and deviation problems have actually been erroneous indications from service
monitors that have not adequately warmed up. This is particularly likely when field service is done during
winter months
* Dataradio test commands, please refer to Dataradio R&D department for support.