Chapter 2 143
Front-Panel Key Reference
Meas Setup
Spurious Emissions Meas Setup Menu Keys
To access the following keys for setting up a spurious emissions
measurement, press
MEASURE, Spurious Emissions and then the
front-panel
Meas Setup key. The spurious emissions measurement
identifies and determines the power level of spurious emissions in
certain frequency bands.
Key Access:
Meas Setup
Avg Number
On Off
Press Avg Number (On) to specify the number of averages used when
calculating the measurement result. The average will be displayed at
the end of each sweep.
Avg Number (Off) disables measurement
averaging.
Key Access:
Meas Setup
Avg Mode
Exp Repeat
Allows you to select the type of termination control used for the
averaging function. This determines the averaging action after the
specified number of measurements (average count) is reached.
Avg Mode has no effect on measurements that are not averaged.
Exp Each successive data acquisition after the average
count is reached is exponentially weighted and
combined with the existing average. Exponential
averaging weights new data more than old data, which
facilitates tracking of slow-changing signals.
Repeat After reaching the average count, all previous result
data is cleared and the average count is set back to 1.
Key Access:
Meas Setup
Range Table
Allows you to enter the settings for up to twenty ranges using the
instrument front panel keys or remotely. Upon entering the range table
the measurement is stopped, then the analyzer is set to a constantly
sweeping idle state. The analyzer will then be set to the current values
for range 1 (whether range 1 is on or off.) If a range is currently off, the
values in the range table for that range will be replaced with (---) to
indicate that the range us currently inactive.
Key Access:
Meas Setup
NOTE The range table can be exited at anytime by pressing any front-panel
key with the exception of the following:
ESC, System, File, Save, Print
Setup
, Print, Marker, Peak Search, Freq Count, Next Marker, Next Window,
and Zoom.
The following table defines the default settings for the range table. The
values for ranges 1 through 5 are based on the W-CDMA (3GPP) BTS
Spurious Emission measurement.
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