Keysight 81150A - Modulation in Parameters

Appendix
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3.3.2 Modulation In Parameters
Introduction
The Modulation In Parameters are all located on the MODIN screen. To
show the MOD-IN screen, press the MOD-IN softkey on any of the
modulation screens.
Modulation-In
Parameters
The Modulation-In connector has the following parameters:
 81150A only: Input Voltage Range
 81150A and 81160A: Input Impedance
 81150A and 81160A: FSK Threshold Voltage
These are explained below.
Input Voltage Range
Introduction
81150A only: When selecting external modulation source, the Input Voltage
Range defines the full scale of the modulation signal. It can be selected
between 2.5V and 5V.
81160A: The input voltage range is 2.5V fix.