Keysight Technologies 8163A User Manual page 249

10 Applications
248
These simple applications do not offer the full functionality of all the
NOTE
instruments, which is better accessed with remote programming.
These applications are not available for the 8166A/B Lightwave
NOTE
Multichannel System. The Return Loss Application is only available for
the 8163A/B Lightwave Multimeter.
You can access these applications by pressing the Appl hardkey.
After you exit from the application, any modules that were available for
NOTE
use by these applications will automatically be preset, all parameters will
be set to their default values.
8163A/B, 8164A/B, 8166A/B User's Guide