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S:\HP83206A\USRGUIDE\MANUAL\meas.fm
Chapter 4, Making Measurements
How to Read Data and Make Measurements
Connect State &
Mobile Test Mode
There are two methods of making measurements with the DCCH Call Processing
subsystem. Each method requires that the mobile be in a certain state, and each
method uses a different screen.
One method requires that the Test Set be in “Connect” state with the mobile. This
state uses the Test Set to act as a base station, transmitting the necessary protocol
to the mobile to allow it to get a call up for making measurements. It uses the
CALL CONTROL screen to display measurements for both DTC and AVC
signals.
The second method, “Test” mode, requires that the mobile be in the test mode as
per the TIA/EIA specification IS-137. This mode allows the mobile to transmit
without receiving protocol transmitted from the Test Set. It uses the DIGITAL
MEASUREMENT (DIG MEAS) screen to display measurements.
Connect State
Measurements
When the Test Set is in the Connect state, different groups of measurements that
can be displayed at one time: EVM1, EVM10, Adjacent Channel Power, Average
Power and MAHO. You can choose which group you want to have displayed by
selecting the field below the
Data/Meas field. An overview of the different
measurement sets is shown in Figure 27 on page 103.
BER measurements can only be made when the Test Set is in the DIGITAL
MEASUREMENT screen.
Figure 26 The Measurements Display (CALL CONTROL Screen)
Select Meas to
display
measurements
Select here to
choose between
EVM1
EVM10
Ad Ch Pwr
Avg Power
MAHO
Meas-cho.tif