Table 12-5 Edge: Power Meter Presets - Keysight N1911A Programming Manual

P-series power meters
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Function
Lower window/lower measurement (LL)
Feed
Measurement
[a] For further information refer to
EDGE
EDGE (Enhanced Data for Global Evolution or Enhanced Data for GSM Evolution)
is an enhancement of the GSM standard. Whereas the GSM modulation scheme is
GMSK which has constant amplitude, the EDGE modulation scheme is 8PSK
which has variable amplitude.
The EDGE set-up provides:
– Average power measurement in an EDGE burst.
– Peak-to-average ratio in an EDGE burst.
– A trace display of the burst profile
An EDGE measurement is started by detecting the rising edge of the EDGE RF
burst—for example the burst emitted by a mobile—using the internal RF level
trigger. The internal level trigger is set to –20 dBm. Trigger level hysteresis is used
to prevent the power meter re-triggering on the varying power levels within the
EDGE burst. Time-gating is used to measure the average power and the
peak-to-average ratio in the useful part of the RF burst.
The following table shows the power meter presets when <character_data> is set
to EDGE. Commands not listed are preset according to their DEFault values (for
further information refer to
Table 12-5
EDGE: Power Meter Presets
Command
Frequency
[SENS[1]]|SENS2:FREQ[:CW|:FIX]
N1911A/1912A P-Series Power Meters Programming Guide
Secondary Channel Sensor
No Sensor
DEF
DEF
"Primary and Secondary Channels"
Setting
+900.000 MHz
Non P-Series or E9320
Sensor
[a]
Secondary channel
Avg
on page 527.
Table
12-1).
Comments
Frequency setting
SYSTem Subsystem
P-Series and E9320 Sensor
Gate1 secondary channel
(Channel B)
Avg
12
[a]
537

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