Sharp GX10i, Руководство по обслуживанию

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GX10i
CONFIDENTIAL
3.4 RSSI Measure
The phone notifies you of input power value at the antenna connector.
Estimated Power
Input box
(Integer only)
Measure button
Measured power box
Figure 71
[Procedure]
1. Connect the phone and GSM tester (or Signal Generator) with RF cable.
2. Select a band and channel. (see 3.1)
3. Send signals (*) from GSM tester.
4. Enter the value of input power from GSM tester in integers (from –10 to –110) considering RF cable loss.
5. Press the Measure button.
6. The result appears in Measured Power box.
* The signal type from GSM tester must be either of two:
1. Continuous sine wave (without modulation) with the frequency as follows:
(Frequency of the measured channel) + 67.708kHz.
(Ex. channel: GSM 37ch
the result: 942.467708 MHz)
Power: –110 to –10 dBm
2. BCCH signal of the measured channel
Power: –110 to –10 dBm
Result
When the phone is properly calibrated, the error between “Estimated Power” and “Measured Power” is less than 2dB.
4. Termination
Turn off the phone to ensure proper operations.