Tutorial
81150A and 81160A User’s Guide 645
A sweep consists of a finite number of small frequency steps. Since each
step takes the same amount of time, longer sweep times result in smaller
steps and therefore better resolution. The number of discrete frequency
points in the sweep is automatically calculated by the function generator
and is based on the sweep time you select.
Frequency Sweep
For triggered sweeps, the trigger source can be an external signal, an
internal timer, the Man key, or a command received from the remote
interface.
The input for external trigger signals is the front-panel External-In connector.
This connector accepts levels in the range of 10 V for the 81150A (5 V for
the 81160A) and is referenced to chassis ground.
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