Anritsu MG369 Series, Operation Manual

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Press
Mode >
to access the FM Mode Selection
menu (below).
This menu lets you select the FM operating mode.
Press
Locked Low Noise
to select the Locked
Low-Noise FM operating mode; press
Locked
to se-
lect the Locked FM operating mode; press
Unlocked Narrow
to select the Unlocked Narrow
FM operating mode; or press
Unlocked Wide
to se-
lect the Unlocked Wide FM operating mode. The FM
status display will reflect your selection.
Press
< Previous
to return to the FM Status menu
display.
Phase
Modulation
Operating
Modes The MG369XB can provide phase modulation (
F
M)
of the output signal using modulating signals from
either its internal
F
M generator or an external
source.
The MG369XB has two
F
M operating modes—Nar-
row
F
M and Wide
F
M. In Narrow
F
M mode, the
maximum
F
M deviation is the lesser of
±
3 radians
or
±
5 MHz for DC to 8 MHz rates. In Wide
F
M
mode, the maximum
F
M deviation is the lesser of
±
400 radians or
±
10 MHz for DC to 1 MHz rates.
NOTE
FM and
F
M can not be active simultaneously.
FM and
F
M share the same rear panel input
connector and internal signal generator.
MG369XB OM 3-101
Local (Front Panel) Operation Signal Modulation
UNLOCKED
When Unlocked Narrow FM or Un-
locked Wide FM is selected ON, this
warning message is displayed on all
menu displays to remind you that
the carrier frequency is not phase-
locked.