User`s guide

PEF

GTPOS

LOG

dB/

CORP

CENTER 50 000

MHr

SPAN 500 0

MHz

#RES

BW 100

kH2

#VBW 300

hHr

#SWP

1 0

set

Figure 4-19. Viewing Time-Sharing of a Frequency with a Spectrum Analyzer

Trace display of the first signal, with the time gate on.

Using the Time-Gated Spectrum Analyzer Capability to View Pulsed RF

This example demonstrates how to use Option 105 to view two different pulsed RF signals. The

signals are at the same frequency, but they interleave in time. (This example uses the time gate

function without using the gate utility.)

To use Option 105 to view the amplitude of a pulsed RF signal accurately, the spectrum

analyzer settings of the sweep time, resolution bandwidth, video bandwidth, gate delay, and

gate length must be set correctly. To set the spectrum analyzer settings correctly, you must

determine the pulse repetition interval, pulse width, and signal delay (if any) of the pulsed RF

signal. Figure 4-20 shows an example of two pulsed RF signals.

4-24 Making Measurements