Trigger Point; Measuring Cdmaone - Agilent Technologies EPM-P Series Programming Manual

Measuring cdmaOne

The following procedure shows you how to make a continuous
measurement on a cdmaOne 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 E9322A and E9326A sensors are best suited due to their 1.5 MHz
Note
bandwidth. The E9321A and E9325A are not recommended due to
their lack of bandwidth.
*CLS
*RST
:SYST:ERR? <read string>
SERV:SENS:TYPE?
SENS:FREQ:850MHZ
SENS:BW:VID:HIGH
SENS:SWE1:OFFS:TIME:0
SENS:SWE1:TIME 10E-3
INIT:CONT ON
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:
E9322A|E9323A|
E9326A|E9327A
The cdmaOne setup is only
valid with these sensors
Sets the measurement
frequency to 850 MHz
Only send this command if
using an E9322A or an
E9326A
Sets gate1 start point to the

trigger point

Sets gate time to 10 ms
Puts meter in "wait for
trigger" state
1-35