User`s guide

130 N9320A Spectrum Analyzer
5 One-Button Measurements
Intermod (TOI)
The third order intermodulation (TOI) measurement computes
and displays the output intercept point (IP3), and places
arrows upon the trace to indicate the measured signals and
third- order products.
Figure 31 TOI Measurement
Avg Number
On Off
Set Avg Number to On to specify the number of measurement
averages used when calculating the measurement result. The
average will be displayed at the end of each sweep. Setting
Avg Number to Off disables measurement averaging.
Key access:
> More> Intermod (TOI)
Avg Mode
Exp Repeat
Selects
the type of termination control used for the averaging
function (Exp/Repeat). This determines the averaging action
after the specified number of measurements (average count)
is reached.
When Avg Mode is 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. The average is displayed at
the end of each sweep.
Meas