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102 Agilent E1441A SCPI Command Reference
Chapter 3
BURST MODULATION COMMANDS
Use the APPLy command or the equivalent FUNC:SHAP, FREQ, VOLT, and
VOLT:OFFS commands to configure the carrier waveform. Set the carrier frequency
between 100 µHz and 5 MHz (100 kHz maximum for triangle and ramp). The default
is 1 kHz.
BM:NCYCles
[SOURce:]BM:NCYCles <# cycles>|INFinity|MIN|MAX sets the number of cycles
to be output per burst (counted burst mode only). Select from 1 cycle
to 50,000 cycles, in 1 cycle increments. The default is 1 cycle.
MIN = 1 cycle. MAX =
50,000 cycles. [ Stored in volatile memory ]
Comments • For sine, square, and arbitrary waveforms (does not apply to ramp and triangle
waveforms), the relationship between the carrier frequency and the minimum
burst count is shown below.
• If you attempt to set the carrier frequency to a value that is not valid,
the function generator will automatically adjust the frequency to the maximum
value allowed with the present burst count. A -221, “Settings conflict” error is
generated and the carrier frequency is adjusted.
• For all waveforms used with burst, if the carrier frequency is set less than or
equal to 100 Hz, the following relationship applies.
• If you attempt to set the carrier frequency to a value that is not valid, the
function generator will automatically adjust the frequency to the minimum
value allowed with the present burst count. A -221, “Settings conflict” error is
generated and the frequency is automatically adjusted.
BM:NCYCles?
[SOURce:]BM:NCYCles? [MIN|MAX] queries the burst count. Returns an integer
between 1 and 50,000, or +9.90000E+37 (in the case of INF).
Carrier Frequency Minimum Burst Count
10 mHz to 1 MHz 1
>1 MHz to 2 MHz 2
>2 MHz to 3 MHz 3
>3 MHz to 4 MHz 4
>4 MHz to 5 MHz 5
BurstCount
CarrierFrequency
-------------------------------------------------
500 second
s
≤