Keysight 81150A - Modulating Source

Appendix
190
3.7.8 Modulating Source
Introduction
The 81150A / 81160A will accept modulation from an internal or external
modulation source. In case of internal modulation, the modulation signal can
be the ‘other channel’ (2 channel instrument only) or the internal modulation
source of the modulated channel.
Modulating Source
If you select the External source, the carrier waveform is modulated with an
external waveform. The modulation depth is controlled by the ±2.5V/±5V
signal level present on the rear-panel Modulation In connector. For example,
if you have set the modulation depth to 100%, then when the modulating
signal is at +2.5V/+5V, the output will be at the maximum amplitude. When
the modulating signal is at -2.5/-5V, then the output will be at the minimum
amplitude.

 The 81160A offers a fix ±2.5V input range. The 81150A offers a
selectable ±2.5V or ±5V input range.
0 V
+2.5 V/+5 V
-2.5 V/-5 V
Front-Panel
Operation
After enabling AM, press the Source softkey.
Remote Interface
Operation
:AM[1|2]:SOURce {INTernal[1]|INTernal2|EXTernal}