Keysight 81160A - Modulating Source

Appendix
224
3.11.8 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
 Internal, External or other channel. The default is Internal.
 If you select the External source, the pulse waveform is modulated
with an external waveform. The width deviation or duty cycle
deviation is controlled by the ±2.5V/5V signal level present on the
rear-panel Modulation In connector. For example, if you have set the
duty cycle to 10% and the duty cycle deviation to 5%, then, when the
modulating signal is at +2.5 V/+5 V, the output will be at the
maximum duty cycle (15%). When the modulating signal is at
-2.5 V/-5 V, the output will be at the minimum duty cycle (5%).

 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 PWM, press the PWM source softkey and select from
Internal, Channel, or External.
Remote Interface
Operation
:PWM[1|2]:SOURce {INTernal[1]|INTernal2|EXTernal}