Measuring Cdma2000 - Keysight 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 bandwidth.
NOTE
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
TRIG:LEV:AUTO OFF
TRIG:LEV -10.00DBM
DISP:WIND1:FORM SNUM
Keysight EPM-P Series Programming Guide
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
Turn off auto leveling for trigger
Sets trigger level to -10.0 dBm
Assigns upper window to a single
numeric display
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