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 10 mHz and 5 MHz (100 kHz for triangle and
ramp). The default is 1 kHz.
BM:NCYCles {<
# cycles>|INFinity|MINimum|MAXimum}
Set the number of cycles to be output per burst (triggered 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 ]
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. From the
remote interface, a -221, “Settings conflict” error is generated and the
carrier frequency is adjusted.
Carrier
Frequency
10 mHz to 1 MHz
>1 MHz to 2 MHz
>2 MHz to 3 MHz
>3 MHz to 4 MHz
>4 MHz to 5 MHz
Minimum
Burst Count
1
2
3
4
5
For sine, square, and
arbitrary waveforms only.
Chapter 4 Remote Interface Reference
Burst Modulation Commands
162
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