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Measuring MAHO BER with Inserted Bit Errors
1. Select the CALL CONTROL screen.
2. Set the Amplitude field to 50 dBm.
3. Allow the mobile to camp on the DCCH.
4. Bring up a call on a DTC, either by paging or origination.
5. Select CALL CNFG from the To Screen menu.
6. Assign a global USER key to the % BIT ERROR field as follows:
7. Go to the CALL CONTROL screen.
8. Select Meas from the Data/Meas field.
9. Select the field that appears below Data/Meas.
10. Select MAHO from the list of choices.
11. After the actual number of bits has been transmitted and received, the BER should be
12. Press the SHIFT key then the k1 key. The Inserted DTC Bit Error Rate field
13. Enter a value between 0.00% and 20.00% in the Inserted DTC Bit Error Rate
Enter the number of
bit errors to be
inserted.
Watch here to see the
result of the inserted
bit errors.
Figure 45
Maho Measurement with Inserted Bit Errors
a Select the % BIT ERROR field.
b Press the SHIFT key, then k4 (ASSIGN) key.
c
Press the SHIFT key again, then the k1 key.
displayed. The MAHO BER should be <0.01.
should be displayed at the top of the screen.
field. The MAHO BER measurement results should change. For example, if you enter
2.35%, the MAHO BER should return 2.0 < 4.0. If you enter 0.10%, the result should
alternate between 0.01 < 0.1 and 0.1 < 0.5.
Chapter 4, Making Measurements
MAHO-ERRORS.tif
MAHO
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