Gated Lo Measurement - Keysight X Series Measurement Manual

Making Time-Gated Measurements

Gated LO Measurement

Gated LO Measurement
This procedure utilizes gated LO to gate the FM signal. For concept and theory
information about gated LO see
Step
1 Set the analyzer to the
Spectrum Analyzer
mode.
2 Preset the analyzer.
3 Set the center frequency,
span, reference level and
attenuation.
4 Set the gate source to the
rear external trigger
input.
5 Set the gate delay, gate
length, gate sweep time,
and gate trigger.
6 Access the analyzer gate
view display.
"How time gating works" on page
Action
• Press Mode, Spectrum
Analyzer.
• Press Mode Preset.
a. Press FREQ Channel,
Center Freq, 40, MHz.
b. Press SPAN X Scale,
Span, 500, kHz.
c. Press AMPTD Y Scale,
Ref Level, 10, dBm.
• .Press Sweep/Control,
Gate, More, Gate
Source, External 1.
a. Press Sweep/Control,
Gate, Gate Delay, 2,
ms.
b. Press Gate Length, 1,
ms.
c. Press Gate View Sweep
Time, 5, ms.
d. Press More1 of 2,
Control (Edge).
• Press Sweep/Control,
Gate, Gate View (On).
100
Notes
This enables the spectrum analyzer
measurements.
Use this function to confirm the gate "on"
time during the RF burst interval
(alternatively you could also use the
oscilloscope to view the gate settings).
199.