Rohde & Schwarz SME02 - Amplitude Modulation; Fig. 2-24 Menu MODULATION-AM (Preset Setting)

Analog Modulations SME
1038.6002.02 2.54 E-13
2.6.2.2 Amplitude Modulation
Menu MODULATION-AM offers access to settings for amplitude modulation.
Notes:
-
In the level range from 7 to 13 dBm, the specified AM data are only guaranteed for a
linearly decreasing modulation depth with a rising level. When a modulation depth is set
that is too high, "WARNING" is displayed in the status line or the message "WARN -221
Settings conflict; modulation forces peak level into overrange" is displayed after
pressing the ERROR key.
- Modulations AM, VOR, ILS and MKR BCN deactivate one another. AM SOURCE INT =
LFGEN2 and STEREO deactivate one another as well
.
Menu selection: MODULATION- AM
FREQUENCY
LEVEL
MODULATION
DIGITAL MOD
LF OUTPUT
SWEEP
LIST
MEM SEQ
UTILITIES
HELP
AM
FM
PM
PULSE
AM DEPTH
AM SOURCE INT
AM SOURCE EXT
AM EXT COUPLING
AM POLARITY
LFGEN1 FREQ
LFGEN2 FREQ
LFGEN2 SHAPE
FREQ
100. 000 000 0
MHz
LEVEL
- 30.0
dBm
30.0 %
OFF LFGEN1 LFGEN2
OFF EXT1
AC DC
NORM INV
0.4k 1k 3k 15k Hz
1.000 0 kHz
SIN SQR TRI NOI
Fig. 2-24 Menu MODULATION-AM (preset setting), fitted with option SM-B2, LF-generator
(LFGEN2)
AM DEPTH
Input value of the modulation depth..
IEC-bus command SOUR:AM 30PCT
AM SOURCE INT
Selection of the internal source.
IEC-bus command SOUR:AM:SOUR INT1; STAT ON
AM SOURCE EXT
Selection of the external source.
IEC-bus command SOUR:AM:SOUR EXT; STAT ON
AM EXT COUPLING
Selection of the kind of coupling AC or DC with external supply (input EXT1).
IEC-bus command SOUR:AM:EXT:COUP AC