Section 5 Measurement Examples
5-12
5.2.3 Measuring open loop time response
Open loop time response measures the time response of output power of the CDMA
mobile station when the output power of the CDMA base station is changed stepwise.
MT8801C is used in place of the CDMA base station.
Measurement procedure
The explanation in this section starts at the completion of the setting explained in 5.1.2
“Setting MT8801C and the CDMA mobile station”.
(1) Press the F6 (Main Func On Off) key to turn On the Main Func.
(2) Press the F1 (TX & RX Tester) key.
(3) Check whether the Loopback status is displayed on the Setup Common Param-
eter screen.
(4) Set the following item on the Setup Common Parameter screen:
♦ Set BS Output Level at –60.0 dBm.
(5) Press the F1 (TX Measure) key.
(6) Press the key of Next Menu to display the second page of function keys (F7
to F12).
(7) Press the F9 (Setup TX Parameter) key.
(8) The Setup TX Measure Parameter screen (shown below) is displayed.
(9) Set the following item on the Setup TX Measure Parameter screen:
♦ Set Power Control Bit Pattern to be Alternate.
(10) Press the F6 (Main Func On Off) key to turn On the Main Func.
(11) Press the F1 (TX&RX Tester) key.
(12) Press the F10 (Open Loop Power Cont) key.
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