Filter
Top Products
3-18 Scan Modulation
(Option 20)
The internal scan modulator, added by Option 20, lets you amplitude
modulate output signals from 2 to 18 GHz at modulation depths up to
60 dB. Scan modulation is accomplished using a modulating signal
from an external source and is in addition to the normal amplitude
modulation described in Section 3-12.
To provide amplitude modulation of the output sig
-
nal using the internal scan modulator, first set up
the external modulating signal generator and con
-
nect it to the MG369XB’s rear panel SCAN MOD IN
connector.
Next, press MODULATION, then Scan to go to the
Scan Status menu (below).
Press On/Off to turn scan modulation on and off. The
Scan status display and the Scan modulation status
area will reflect your selection as On or Off.
Control the scan modulation depth by varying the
level of the external modulating signal. The scan
modulator has a fixed sensitivity of –10 dB/V. An ex
-
ternal modulating signal level of 6 volts produces
the maximum modulation depth of –60 dB.
MG369XB OM 3-119/3-122
Local (Front Panel) Operation Scan Modulation (Option 20)