308 Keysight N9915-90020 User’s Guide
IQ Analyzer (IQA) – Option 351
I/Q Analyzer (IQA) Mode Settings
Glitch Mask – Enables the glitch mask to reduce incorrect
triggering due to fast changes/glitches in the signal level that
can be mistaken to be the edge of the RF burst. This softkey is
only active for RF Burst (default: 0 ms, minimum: 0s,
maximum: 5 ms).
Auto Trigger – While waiting for a valid trigger signal, Wait is
annotated in the top left corner of the FieldFox screen.
If a valid trigger signal is not received before the specified Auto
Trig Time, a acquisition will occur automatically.
Enter 0 to set Auto Trigger OFF. When Auto Trigger is OFF, the
FieldFox does NOT perform an acquisition unless a valid
trigger signal is received.
(Default: 100 ms, minimum: 1 ms, maximum: 100s)
Adjusting the Measurement Setup Settings
—Press Meas Setup 4
.
— Then choose from the following:
—
Average Type Opens a menu of averaging softkeys.
Then select one of the following:
——
Power (Linear) Averaging – Best for measuring true power
levels. Used in Noise Marker Average. Mathematically, trace
noise is 2.5 dB higher than when using Log Average.
PAvg
annotation is displayed.
——Log Averaging (default) – Best for displaying Trace Averaging.
Also known as video averaging.
LgAvg annotation is displayed.
——
Voltage (Magnitude) Averaging – Converts the amplitudes to a
magnitude unit before averaging (e.g., Volts, Amps,
microVolts, milliVolts, etc.)
VAvg annotation is displayed.
—
Average Count The Average Count setting is used with the Average
Trace State. In this Trace State, the Average Count setting
determines the number of acquisitions to average. The higher the
average count, the greater the amount of noise reduction (default:
10, minimum: 1, maximum: 10000).
—
Sample Rate Sets the I/Q data sample rate value (default: 125 MHz,
maximum: 125 MHz, couplings: 1.25 * IF Bandwidth).
— Sample Period Sets the 1/Sample Rate value (default: 8 ns,
minimum: 8 ns, maximum: 80 ms, couplings: 1/Sample Rate).
To Next Page
Loading...
