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To measure the relative phase of an AM signal
1 Select the baseband receiver mode and initialize the analyzer:
Press [
Instrument Mode
][
receiver
][
RF section (0-10 MHz)
].
Press [
Preset
].
2 Load AM and PM signals from the Signals Disk into registers and play the AM
signal through the source:
Insert the Signals Disk in the internal disk drive.
Use the BNC cable to connect the SOURCE output to the INPUT.
Press [
Save/Recall
], [
default disk
], [
internal disk
].
Press [
Return
], [
catalog on
].
Rotate the knob to highlight AMSIG.DAT
Press [
recall trace
], [
from file into D1
], [
enter
].
Rotate the knob to highlight PMSIG.DAT
Press [
from file into D2
][
enter
].
Press [
Source
], [
source on
], [
source type
], [
arbitrary
].
3 Configure the measurement and display:
Press [
Frequency
], [
span
], 150, [
kHz
],
Press [
Trigger
], [
trigger type
], [
internal source
],
Press [
Sweep
], [
single
].
4 Activate a different trace as a phase display:
Press [
Display
], [
2grids
],
Press [
B
], [
Measurement Data
], [
spectrum
](selectch1 with a 2-channel analyzer),
Press [
Data Format
], [
phase wrap
]
5 Start a single sweep:
Press [
Pause|Single
].
Measuring Relative Phase
4-2