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S:\Hp8960\E1962B CDMA 2000\Pi Release\Reference Guide\Chapters\cdma2000_meas_gpow_desc.fm
Gated Power Measurement Description
Gated Power Measurement Behavior
Gated Power measurements can not be made concurrently with any other measurement, and no other
measurement can be made while a gated power measurement is in progress.
The pass/fail result indicates whether or not the trace conformed to the mask.
To make the test run faster, reduce the number of averages (multi-measurement count). The default is 100.
Most failures occur during the rising or falling portions of the burst.
Gated power measurements are expressed in dB, relative to the average of the power levels across the number
of 1.25 mS burst specified in the multi-measurement count.
Measurement Requirements
Setup:
The following settings are required for the gated power measurement:
• Operating Mode must be Active Cell
• System Type must be IS-95 or IS-2000 with Radio Config set to (Fwd1, Rvs1) or (Fwd2, Rvs2)
• FCH Service Option Setup must be set to SO2 or SO9 (loopback service option)
• Traffic Data Rate must be set to Eighth.
Input Signal:
The gated power measurement meets or exceeds specifications when the following input signal requirements
are met:
• The frequency of the signal being measured must be within the range of 411 MHz to 484 MHz, 804 MHz to
934 MHz, 1.75 GHz to 1.78 GHz, or 1.85 GHz to 1.98 GHz, and be within 100 kHz of the expected
frequency.
• The average power level of the signal at the RF IN/OUT connector must be between -20 dBm to +30 dBm.
The test set can autorange to a signal that is between +8 dBm to -20 dBm of the expected level (see
“RFANalyzer:AUTO:POWer[:SELected]?” ).
Related Topics
“Programming a Gated Power Measurement”
“SETup:GPOWer”
“FETCh:GPOWer”
“INITiate”
“READ”
“ABORt”
“Test Adherence to Standards”
“Gated Power Measurement Troubleshooting”
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