Gated Burst Mode - HP 81101A Quick Start Manual

Using the HP 81101A
The Mode/Trigger Screen

Gated Burst Mode

The following figures show typical timings for trigger mode GATED and
pulse mode BURST.
For the first example, the synchronously triggerable internal oscillator is
used to source the period.
ARMING SOURCE
PERIOD SOURCE
Characteristics • Bursts of pulse periods are gated by (enabled by) an active level at
• You can select single pulses or double pulses per pulse period.
• TRIGGER OUT marks each pulse period.
• STROBE OUT rises at the start of the first pulse period in a burst and
54
Gated by:
(Gated by:) EXT INPUT
or MAN Key
Period
internal Osc.
OUTPUT
Single Pulses
OUTPUT
Double Pulses
TRIGGER OUT
STROBE OUT
1st period
the selected arming source:
– MAN key on the front panel, gated while pressed or released or
both.
– EXT INPUT (external signal) gated by high, low or both levels.
falls at the start of the last pulse period.
Oscillator starts synchronously
Burst of 3
last period
last period
1st period