Tutorial
81150A and 81160A User’s Guide 625
This input allows to define the decision threshold in a 10V voltage
window. The input signal is referenced to chassis ground.
81150A: The input impedance may be set to either 50 or 10 k.
81160A: The input impedance may be set to either 50 or 1 k.
The Man key on the front panel may be used to generate the trigger event or
gate signal manually. When receiving the *TRG command, the instrument
will emulate a press and release event of the Man key.
Internal Trigger
Generator
Each channel of the Keysight 81150A / 81160A contains its own internal
trigger event generator. The frequency of the trigger event may be adjusted
as required for the specific application. The internal trigger generator cannot
be used to generate the gate signal.
While each of the two channels has its own internal trigger generator, the
External-In and Man key are a shared resource for both channels. But both
channels can use the available arming sources independently (only if
channel coupling is disabled).
The block diagram below reflects the trigger mode related functional blocks
for one channel:
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