Digital Modulation SME
1038.6002.02 2.92 E-13
FREQUENCY
LEVEL
MODULATION
DIGITAL MOD
LF OUTPUT
SWEEP
LIST
MEM SEQ
UTILITIES
HELP
GMSK
GFSK
QPSK
FSK
4FSK
FFSK
FREQ
100. 000 000 0
MHz
LEVEL dBm
SOURCE CLOCK EDGE POS NEG
PRBS CLOCK SOURCE INT COUPLED
CLOCK... CLOCK MODE SYMBOL BIT
LEVEL ATTENUATION MODE
LEVEL ATTENUATION
MODE
SELECT STANDARD...
MOD TYPE...
BIT RATE
FILTER...
CODING...
MOD POLARITY
SELECT LIST...
DELETE LIST...
FUNCTION FILL
CONFIG XMEM...
- 30 .0
Fig. 2-44 Submenu DIGITAL-MOD-QPSK-CLOCK...(preset setting)
CLOCK...
Opens a window to set the clock parameters. The current settings are
displayed.
CLOCK EDGE Selection of the active clock edge
POS The positive clock edge is active.
NEG The negative clock edge is active.
IEC-bus command :SOUR:DM:CLOC:POL NORM
CLOCK SOURCE Selection of the clock source
INT The internal clock generator is also used with an
external data source. The CLOCK socket is
switched to form an output
COUPLED The CLOCK input/output is switched in accordance
with the DATA input/output.
IEC-bus command :SOUR:DM:CLOC:SOUR COUP
CLOCK MODE Selection of the clock pulse for the CLOCK
input/output.
SYMBOL The CLOCK input/output is set to symbol clock
pulse.
BIT The CLOCK input/output is set to bit clock.
Note: Using XMEM (option SMIQ-B12), requires CLOCK BIT to
be set
IEC-bus command :SOUR:DM:CLOC:MODE SYMB
LEVEL ATTENUATION MODE
Selection of the operating mode for level reduction
OFF The level reduction is switched off.
NORM The level reduction corresponds to the value entered in
LEVEL ATTENUATION. The linear range extends to an
attenuation of approx. 30 dB.
MAX The level reduction corresponds to the value entered in
LEVEL ATTENUATION. The linear range extends to an
attenuation of approx. 30 dB.
IEC-bus command :SOUR:DM:DATA:ALEV:MODE NORM
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