2-9 Modulation Commands
Programming with GPIB Commands
2-28
PN: 10370-10374 Rev. F
MG369xC GPIB PM
Complex Modulation (Option 10)
The Option 10–Complex Modulation capability facilitates GPIB and Serial commands to prepare the
instrument for receiving user defined waveform data. Waveform data transfer for a complex modulation
waveform occurs following the GPIB or Serial command to prepare the synthesizer for receipt of the data. Once
the synthesizer has received the command, it stores the next 65,536 values as the waveform data. If the
waveform data comprises less than 65,536 values, the data is uniformly expanded to fill all 65,536 values.
Refer to the
Option 10 Complex Modulation User Guide
for detailed information about waveform data and
additional capabilites provided by the Complex Modulation software. Option 10 is required for these
commands.
Table 2-10.
Complex Modulation Commands (1 of 2)
MNEMONIC
CODE
FUNCTION
ALW (0x04a9)
Prepares the signal generator to receive an AM waveform. A 2-byte value indicating the size of
the waveform (minus 1) and 2-byte values containing the waveform data must immediately
follow the command. Each waveform value is a 16-bit, unsigned integer consisting of two
bytes, the upper half of the value followed by the lower half of the value. The size of the
waveform must be a power of 2.
AR0 (0x04b2)
Disable random waveform access of the AM waveform.
AR1 (0x04b3)
Enable random waveform access of the AM waveform.
FLW (0x04ab)
Prepares the signal generator to receive an FM waveform. A 2-byte value indicating the size of
the waveform (minus 1) and 2-byte values containing the waveform data must immediately
follow the command. Each waveform value is a 16-bit, unsigned integer consisting of two
bytes, the upper half of the value followed by the lower half of the value. The size of the
waveform must be a power of 2.
FMO (0x04ac)
Disconnect the internal FM/
M function generator from the FM circuitry (only connected to the
rear panel).
FR0 (0x04b4)
Disable random waveform access of the FM waveform.
FR1 (0x04b5)
Enable random waveform access of the FM waveform.
PHO (0x04ae)
Disconnect the internal FM/
M function generator from the FM circuitry (only connected to the
rear panel).
PLW (0x04ad)
Prepares the signal generator to receive a
M waveform. A 2-byte value indicating the size of
the waveform (minus 1) and 2-byte values containing the waveform data must immediately
follow the command. Each waveform value is a 16-bit, unsigned integer consisting of two
bytes, the upper half of the value followed by the lower half of the value. The size of the
waveform must be a power of 2.
PMR0 (0x04b6)
Disable random waveform access of the
M waveform.
PMR1(0x04b7)
Enable random waveform access of the
M waveform.
SR0 (0x04b9)
Disable synchronization of the AM and FM/
M randomizers. Note: The SR0 or SR1
commands should be sent before the WFS and waveform data are sent to the signal generator.
The commands will not function properly if not sent in the correct order.
SR1 (0x04ba)
Enable synchronization of the AM and FM/
M randomizers. Note: The SR0 or SR1 commands
should be sent before the WFS and waveform data are sent to the signal generator. The
commands will not function properly if not sent in the correct order.
WFS (0x04b8)
Enable synchronization of the internal AM and FM/
M function generators.
Note: The WFS command must be sent before and after any waveform as shown in the
following example:
WFS ALW<2-byte binary data for waveform size><2-byte binary data for
waveform data> PLW<2-byte binary data for waveform size><2-byte binary
data for waveform data> WFS
Summary of Contents for MG369 C Series
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