Chapter 2, Making Measurements

Code Domain Phase

Steps

1

Connect the equipment as shown in figure 14.

 

2

In the main menu, enter the Base Station Channel number for the transmitter

 

 

being tested.

 

3

Also in the main menu, enter the Base Station PN Offset.

 

4

Scroll to and select Go to Code Domain Analyzer Screen.

 

5

Scroll to the Measurement field at the bottom of the display and set to Phase (if not

 

 

already selected).

 

6

Turn on your base station transmitter with the Pilot, Sync, Traffic, and Paging channels

 

 

enabled.

 

7

You should now see a display of relative phase, as shown in figure 15.

 

8

If you need to re-scale the vertical resolution, select Controls:Marker and then

 

 

scroll to the Phase/div field and select from settings of 1 to 50 mRad (milliradians).

 

9

To return to the main menu press SHIFT, then k1, then ENTER.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 15

Notes

The Tune Freq displayed at the bottom of the CODE DOMAIN ANALYZER screen

 

does not indicate the true tuned frequency of the Test System. The tuned

 

frequency is calculated from your entry for Base Station Channel and can be

 

viewed at the bottom of the main menu screen. Do not make changes to the Tune

 

Freq setting of the CODE DOMAIN ANALYZER screen.

 

If you are planning to test Code Domain Power or Code Domain Timing, you can

 

use the Measurement field to activate them without having to return to the main

 

menu.

 

Refer to the HP 83203B or 83205A Cellular Adapter User’s Guide for more

 

details on the use of the CODE DOMAIN ANALYZER screen.

35