SME Analog Modulations
1038.6002.02 2.63 E-13
2.6.2.6 Stereo Modulation
By means of option SM-B6, multifunction generator, and option SM-B5, FM/PM modulator, stereo
multiplex signals conforming to standards can be generated according to the pilot-tone method.
Note
:
The following modulations cannot be set simultaneously and deactivate one another:
STEREO and FM
STEREO and PM
STEREO and AM if SOURCE AM = LFGEN2
Menu selection: MODULATION - STEREO
FREQUENCY
LEVEL
MODULATION
DIGITAL MOD
LF OUTPUT
SWEEP
LIST
MEM SEQ
UTILITIES
HELP
AM
FM
PM
PULSE
STEREO
VOR
ILS-GS
ILS-LOC
MKR-BCN
FREQ
100. 000 000 0
MHz
LEVEL
- 30.0
dBm
MODE OFF R L R=L R=L ARI
DEVIATION 40.0 kHz
AUDIO FREQ 1.000 0 kHz
PREEMPHASIS OFF 50µ 75µ S
PILOT STATE OFF ON
PILOT DEVIATION 6.72 kHz
PILOT PHASE 0.00 deg
ARI DEVIATION 4.00 kHz
ARI IDENTIFICATION OFF DK BK
ARI BK A B C D E F
Fig. 2-32 Menu MODULATION-STEREO (preset setting), fitted with option SM-B6, multifunction
generator, and option SM-B5, FM/PM modulator
MODE
Selection of the operating mode.
OFF The stereo signal is switched off.
R Audio signal only in the right-hand channel.
L Audio signal only in the left-hand channel.
R=L Audio signals of same frequency and phase in both channels.
R=L Audio signals of same frequency but opposite phase in both
channels.
ARI Generation of 19-kHz pilot tone and ARI traffic channel signals.
IEC-bus command SOUR:STER:STAT ON; SIGN AUD; AUD:MODE LEFT
DEVIATION
Input value of the frequency deviation of the STEREO-MPX signal without
considering the pilot-tone content.
IEC-bus command SOUR:STER 40kHz
AUDIO FREQ
Input value of the frequency of the audio signal.
IEC-bus command SOUR:STER:AUD 1kHz