Section 4 Operation
4-126
Step Operation
(Connecting call)
18. Press the Next Menu key [ ] and function key F5 (Start) in this order to set the Call Proc. state to Idle.
19. Turn on the power of the mobile station under test.
20. Confirm that the Registration is executed for the mobile station and the Idle (Regist) state comes on.
21. Press the function key F2 (NW Originate) to set the Call Proc. state to Loop Back.
(FER measurement)
22. Press the Next Menu key [ ] and function key F2 (RX Measure) in this order to switch to the RX
Measure mode.
23. Press the Next Menu key [ ] and function key F7 (FER Measure) in this order to switch to the
Frame Error Rate screen.
24. Press the Single key or function key [Start/Stop] to start the FER measurement.
25. When counting of the specified number of FER measurement data items terminates, read the
measured value.
26. After measurement, press the function key F12 (Back Screen) to return to Setup Common
Parameter screen.
(Disconnecting call)
27. Press the Next Menu key [ ] and function key F2 (NW Release) in this order to set Call Proc. state
to Idle.
28. Press the function key F5 (Stop) to set Call Proc. state to Stop.
3. Notes on FER measurement
Note the followings when measuring the receiving sensitivity:
3.1 Signal Loss While Changing Output Level
When the output level of the signal generator is changed, the output level
is lost at the instant.
3.2 Controlling the FER Measuring Instrument
The following keys are used to control (start, stop) the FER measuring
instrument on the front panel:
1) Single and Continuous keys
The Single or Continuous key is used to start usual measurement. When
the Single or Continuous key is pressed, the measurement starts. When
the number of data reaches the number of FER measurement data items set
by [Sample], the measurement stops automatically. If Single or Continu-
ous key is pressed during the measurement, it discards measurements up to
this time and starts new measurements.
2) Start/Stop key [F7]
If the Start/Stop key is pressed while the FER measurement is in progress,
it stops the measurement.
If the Start/Stop key is pressed when the FER measurement is stopped, it
starts the measurement from the beginning.
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