Technical data

Chapter 3 119
1xEV-DO Analyzer and Over Air Test
Showing or Hiding the OTA PN Scanner
1xEV-DO Analyzer and Over Air
Test
Showing or Hiding the OTA PN Scanner
The presence of the OTA PN Scanner at the top of your screen is the main
distinguishing feature of an Over the Air measurement. If, from the main (Mode)
screen, you selected [Tx Analyzer], then [1xEV-DO Analyzer], the OTA PN
Scanner will usually be switched Off; if, from the main (Mode) screen, you selected
[Over Air], then [1xEV-DO Over Air], the OTA PN Scanner will usually be
switched On.
When the OTA PN Scanner is turned
Off, there is more space on the screen to
display the
Code Domain Plot, so the finer details of the Code Domain Plot are
easier to see.
When you have the
OTA PN Scanner display On, you also have the option of
turning the
CDP and Metrics Off. This leaves more space on the screen to display
the OTA PN Scanner, so the finer details of the OTA PN Scanner measurement are
easier to see. At the same time, most of the metrics are turned off so they appear as
dashes on the metrics portion of the screen. Only the
Frequency, the PN Offset, and
the
Time Offset are still computed and displayed on the screen. As the test
instrument no longer has to compute the metrics results or the CDP plot, the update
rate of the OTA PN Scanner is improved.
Step Notes
1 Press [Display]
2 Press [OTA PN Scanner] Each time you press this key, the codogram
state switches between
On and Off.