Sets The Measurement Frequency To 800 Mhz; Select Low Video Bandwidth Sets Gate1 Start Point To; 10 Μs After The Trigger; Measuring Iden - Agilent Technologies EPM-P Series Programming Manual

Measuring iDEN

The following procedure shows you how to measure the average power, the
peak-to-average power ratio in one iDEN training and data pulse, and the
average power in a 90 ms iDEN frame. Triggering is achieved using the
rising edge of the training burst. The trigger is configured for a power
level of -30 dBm on a rising edge. Auto-level triggering may also be used.
A trigger hold off is also set up to ensure the power meter is not
re-triggered by the data pulse following the training pulse. Time gating is
used to measure the average power in the following 15 ms pulse. The
display is configured to show the peak-to-average ratio within the data
pulse and the average power in the entire 90 ms frame on two display
lines in the lower window while the upper window shows the average
power in a 15 ms data pulse. All displays are numeric.
Note The narrow bandwidth of the iDEN signal requires only the 30 kHz
bandwidth of the E9321A and E9325A sensors in the Low setting and
these are best suited. Other E9320 sensors may be used in their
lowest setting but they provide less dynamic range and low-level
stability.
*CLS
*RST
:SYST:ERR? <read string>
SERV:SENS:TYPE?
SENS:FREQ:800MHZ
SENS:BW:VID:LOW
SENS:SWE1:OFFS:TIME:0.00001
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:
E9321A|E9322A|E9323A|
E9325A|E9326A|E9327A
The iDEN setup is only
valid with these sensors
Sets the measurement
frequency to 800 MHz
Select low video bandwidth
Sets gate1 start point to
10 μs after the trigger
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