Agilent Technologies E1441A user service Use the following command to set the burst count

function generator is triggered on the rising edge of the trigger source.

When the "gated" burst mode is selected, the burst count, burst rate, and burst phase are ignored (these parameters are used for the counted burst mode only).

Use the following command to set the burst count:

BM:NCYCles <# cycles>INFinityMINimumMAXimum

Burst Rate The burst rate defines the frequency at which internally triggered bursts are generated. The burst rate frequency defines the interval between bursts. Used only in the counted burst mode (with TRIG:SOUR INTernal).

Keep in mind that the burst rate is different than the “carrier frequency” which specifies the frequency of the burst signal.

Burst rate: 10 mHz to 50 kHz. The default is 100 Hz.

When in "counted" burst mode, but with an external trigger source selected (TRIG:SOUR EXTTTLTRG<n>), the burst count and burst phase remain in effect but the burst rate is ignored.

When the "gated" burst mode is selected, the burst count, burst rate, and burst phase are ignored (these parameters are used for the counted burst mode only).

It is possible to specify a burst rate which is too fast for the function generator to output with the specified carrier frequency and burst count. If the burst rate is too high, the function generator will internally adjust it as needed to allow repeated triggering the burst. The adjustment is handled internally by the function generator (the burst queried will be the same as specified).

Use the following command to set the burst rate:

BM:INTernal:RATE <frequency>MINimumMAXimum

Burst Phase The burst phase defines the starting phase of the burst.

Burst phase: -360 degrees to +360 degrees, in 0.001 degree increments. The default is 0 degrees.

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 data point downloaded to memory.

When the "gated" burst mode is selected, the burst count, burst rate, and burst phase are ignored (these parameters are used for the "counted" burst mode only).

Chapter 2 Agilent E1441A Application Information 39