HP 81200, User Manual, Page: 124 / 240

Setting Up Ports and Channels How to Combine Generator Channels
124
HP 81200 Data Generator/Analyzer Platform User Guide, Revision 2.1
How to Combine Generator
Channels
Combining generator channels enables you to test devices under manifold
conditions and at frequencies up to 1.3 Gbit/s.
N O T E
The channel add function enables you to combine two or four generator
channels. The channels to be added must all reside in one module and
must be contiguous. Adding channels reduces the number of active
connectors.
The digital channel addition is an XOR addition (exclusive OR or modulo 2
addition). For details see
“Channel Addition” on page 33
. The addition
takes place before levels are applied to the signals. The final signal is
routed to one output amplifier.
The analog channel addition is available if the module contains at least one
E4838A generator module. It allows to add signal voltages. One can thus
produce signals or pulses with overshot, ringing, and so on.
Channel adding is done with the Channel Configuration Editor.
How to Start the Channel Configuration Editor
The Channel Configuration Editor is started from the Connection Editor.
To start the Channel Configuration Editor:
1
Double-click the configuration area of a generator module.
Figure 54 Module Configuration Area
Alternatively, you can also click on the area with the right mouse button
and select Properties .
Configuration areas of
generator modules