Section 4 Operation
4-104
(12) Transmitter measurement example
An example of transmitter measurement (modulation analysis and Access Probe
output power measurement) using the mobile station of CDMA as the measured
equipment is given below.
1. Setup
As described in paragraph 4.3.1 (1), connect the MT8801C to the measured
equipment (mobile station).
2. Setting and measurement procedures
Perform transmission measurement (modulation analysis and Access Probe out-
put power measurement) as described below.
Step Operation
(Checking and setting the measurement interface)
1. Press function key F6 (Main Func) to the Main Func “On”.
2. Press the Next Menu key [ ] and function key F2 (Instrument Setup) in this order to switch to the
Instrument Setup screen.
3. Check that the RF Input/Output item is set to Main. If necessary, change the set value (Note).
4. Press function key F6 (Main Func) to the Main Func “On”.
5. Press function key F1 (TX/RX Measure) to enter TX/RX Measure mode (Setup Common
Parameter screen).
(Setting the Setup Common Parameter screen)
6. Sets the specification using the current specification.
7. Set the measurement frequency or channel.
(Example: Set Band to 800 MHz and Channel to 1CH.)
8. Set Reference Level and BS Output Level.
9. For the type of signal of the measuring object, set each the item (Service Option etc.) of the signal.
(Setting the Setup TX Parameter screen)
10. Press function key F1 (TX Measure) to enter TX measurement mode.
11. Press the Next Menu key [ ] and function key F9 (Setup Digital TX Parameter) in this order to
switch to the Setup Digital TX Measure Parameter screen.
12. If necessary, set User Cal Factor. For details of the contents and steps, see paragraph 4.3.1 (3).
13. Set the Access Parameter, Measuring Period and Measuring Number of the parameters for Access
Probe output power measurement. (See paragraph 4.3.6 (1).)
14. Press function key F12 (Back Screen) to return to the Setup Common Parameter screen.
(Setting the Setup Call Processing Parameter screen)
15. Press function keys F3 (Call Processing) and F9 (Setup Call Proc. Parameter) in this order to switch
to the Setup Call Processing Parameter screen.
16. Set SID, NID, and BASE_ID.
17. Press function key F12 (Back Screen) to return to the Setup Common Parameter screen.