CTP Systems CTPhone 1900, Applications Manual

Page: 102 / 132

5-14 DOC00101-01
Diagnostics and Troubleshooting
CTPhone Handset Functions
Bit Error Rate (BER) Testing
After activating your system, you can use a CTPhone handset to perform
Bit Error Rate (BER) testing. During a BER test, the handset displays
results that help you determine the quality of coverage of the base station
the handset is locked onto. Handsets do not perform handoff during BER
tests so that you can test specific base stations. BER testing is especially
important when you are trying to maximize base station coverage.
Starting BER Testing on the CTPhone Handset
BER testing is one of the password protected functions of the CTPhone
handset. To initiate BER testing on a handset:
1 In idle mode, dial ##**.
2 Press , then .
BER MEASURE appears briefly in the handset display and then the
handset starts reporting BER test readings.
See Reading the BER Values on page 5-15 for information on how to
read the BER values in the handset display.
See BER Testing Guidelines below for guidelines to follow when per-
forming the test.
3 Press to end the BER test.
BER Testing Guidelines
When performing BER tests, you want to simulate real use, rather than try-
ing to get the best readings. Therefore, make sure to do the following:
• Perform tests in all possible areas that users may carry their handsets.
There may be areas of interference that you were not aware of when
first determining base station placement.
• When checking an area, turn in a 360 degree circle to check the
effects of standing in different directions.
• Keep the handset slightly raised.
• Test while walking and standing.
Note BER readings may take a few seconds to register. Make sure to
remain in an area long enough to get an accurate reading.
ABC
CALL
END