BNC 645 - Manual (Page 125)

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B.2 Output Data Formats
Output data will be in one of formats shown in the table below.
Type of Output Data
Output Data Format
Non-reading queries < 80 ASCII character string
Single reading (IEEE-488) SD.DDDDDDDDESDD
Multiple readings (IEEE-488) SD.DDDDDDDDESDD,...,...,
S
Negative sign or positive sign
D Numeric digits
E Exponent
newline character
carriage return character
B.3 Command Reference
-- A to F --
-- A --
AM:INTernal
:FUNCtion{SINusoid|SQUare|RAMP|NRAMP|TRIangle|NOISe|USER}
Specify the modulating waveform for the modulation. This applies only when the
modulating source is internal. Noise can be a modulating waveform, but cannot
be used as a carrier waveform, neither do Pulse nor dc. The default modulating
waveform is a sine waveform.
AM:INTernal
:FUNCtion?
Query the modulating function in amplitude modulation. “SIN”, “SQU”, “RAMP”,
“NRAM”, “TRI”, “NOIS” or ”USER” string indicating the modulating function will
be returned.
-- Square waveform has 50% duty cycle.
--Ramp waveform has 100% symmetry
--Triangle waveform has 50% symmetry.
--Negative Ramp waveform has 0% symmetry.
--If an Arbitrary(USER) waveform is chosen to be the modulating waveform, it is