Keysight 53210A - Figure 5-5 Gate Source Sequence

Triggering and Gating 5
Keysight 53210A User’s Guide 137
Figure 5-5 Gate Source Sequence.
Typical counter measurements and most applications use an internal signal as the
gate source to control the gate for a specified (or default) period of time. For
applications requiring synchronization with external events or requiring more
precise gate control, an external gate or advanced gating is used. External gate
signals are applied to the counter’s rear panel ‘Gate In/Out’ BNC or to the channel
1 or channel 2 input.
Gate Source
SENSe:FREQuency:GATE:SOURce
SENSe:FREQuency:GATE:TIME
(from Triggered State)
Gate Start (open)
Gate Stop (closed)
(to SAMPle COUNt reached?)
auto gate extension
(measurement completes on next edge of
input signal after gate is closed)
(measurement complete)
(frequency and period measurements)
TIME
SENSe:FREQuency:GATE:POLarity
EXTernal / INPut[1]
Gate Start (open)
Gate Stop (closed)
INPut[1]:LEVel[:ABSolute]
Gate In/Out BNC Disable
OUTPut:STATe OFF
shown first sequentially
set last programmatically
(if gate source EXTernal)