Chapter 2 131
Front-Panel Key Reference
Meas Setup
NOTE The “Transmit Freq Error” displayed above is defined as the difference
between the (f
2
+ f
1
)/2 and the tuned center frequency of the signal.
Optimize
Ref Level
Sets the reference level and attenuator to optimum values based on the
signal present at the input.
Key Access:
Meas Setup
ACP Meas Setup Menu Keys
To access the following keys for setting up an adjacent channel power
measurement, press
MEASURE, ACP and then the front-panel
Meas Setup key.
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 measurement.
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
Chan Integ BW
Allows you to specify the range of integration used in calculating the
power in the main channel. The default value is 2.0000 MHz. The range
for this parameter is 300 Hz to 20 MHz. When selecting a radio
standard by pressing
Mode Setup, Radio Std, this parameter is defined
by Table 2-4.
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