Measuring Cdma2000 - Agilent Technologies EPM-P Series Programming Manual

Measuring cdma2000

The following procedure shows you how to make a continuous
measurement on a cdma2000 signal. Peak and peak-to-average power
measurements are made over a defined and statistically valid number of
samples. With gated 10 ms measurements, corresponding to 200,000
samples, there is less than a 0.01% probability that there are no peaks
above the measured peak value. The trigger is configured for continuous
triggering on a rising edge at -10 dBm. This results in continuously
updated results based on a 10 ms period relating to a position beyond
0.01% on the CCDF curve, responding to any changes in signal or DUT.
The E9323A and E9327A sensors are best suited due to their 5 MHz
Note
bandwidth. The E9321A, E9322A, E9325A, and E9326A sensors are
not recommended due to their lack of bandwidth (5 MHz required).
*CLS
*RST
:SYST:ERR? <read string>
SERV:SENS:TYPE?
SENS:FREQ:1900MHZ
SENS:BW:VID:HIGH
SENS:SWE1:OFFS:TIME:0E-6
SENS:SWE1:TIME 10E-3
INIT:CONT ON
TRIG:SOUR INT
EPM-P Series Power Meters Programming Guide
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Making Measurements on Wireless Communication Standards
Power Meter Remote Operation
Clears error queue
Resets meter settings to their
default states
The system error query
should return "0: No Error"
The sensor type query
should return one of the
following:
E9323A| E9327A
The cdma2000 setup is only
valid with these sensors
Sets the measurement
frequency to 1900 MHz
Sets the sensor bandwidth
to high
Sets gate1 start point to the
trigger point
Sets gate time to 10 ms
Puts meter in "wait for
trigger" state
Selects internal trigger
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