For all waveforms used with burst, if the carrier frequency is set
less than or equal to 100 Hz, the following relationship applies.
Burst Count
Carrier Frequency
500 seconds For Carrier 100 Hz
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. From the
remote interface, a -221, “Settings conflict” error is generated and the
frequency is adjusted.
BM:NCYCles? [MINimum|MAXimum]
Query the burst count. Returns an integer between 1 and 50,000.
BM:PHASe {<
degrees>|MINimum|MAXimum}
Set the starting phase for the burst (triggered burst mode only).
Select from -360 degrees to +360 degrees, in 0.001 degree increments.
The default is 0 degrees.
MIN = -360 degrees. MAX = +360 degrees.
[ Stored in volatile memory ]
For sine, square, triangle, and ramp waveforms, 0 degrees is the point
at which the waveform crosses zero volts (or the dc offset value), in a
positive-going direction. For arbitrary waveforms, 0 degrees is the
first point downloaded to memory.
BM:PHASe? [MINimum|MAXimum]
Query the starting phase. Returns a value in degrees.
4
Chapter 4 Remote Interface Reference
Burst Modulation Commands
163
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