CALAMP WIRELESS NETWORKS INC. GPDA Manual Do Utilizador
122 20130-004
G3 Installation Guide
18
4. Trouble-Shooting and Testing
The checks described below should be done at annual intervals or whenever deterioration in per-
formance is noted.
formance 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.
•
WinRIS version 4.0 or later*
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 Gemini and a base station.
6. GPS test (not required on G3 Lite model).
2. Carrier frequency error
3. Frequency deviation
4. Receivers RSSI Check
5. RF Data Link test between a Gemini and a base station.
6. GPS test (not required on G3 Lite model).
- For checks 1 to 5, refer to Table 4 – Test Checklist below.
- For check 6, refer to paragraph 4.3.2 - GPS Test.
- For check 6, refer to paragraph 4.3.2 - GPS Test.
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.
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
service monitors that have not adequately warmed up. This is particularly likely when field
service is done during winter months
* To find out how to launch the Windows-based software alignment and system-testing tool
WinRIS, please refer to the readme.txt file on the application’s installation diskette. For
functional details of the numerous buttons and menu-selectable items available, please refer to
the program’s context sensitive help. It is also possible to access the help information via the
F1 key.
functional details of the numerous buttons and menu-selectable items available, please refer to
the program’s context sensitive help. It is also possible to access the help information via the
F1 key.