HP 83206A, User Manual

Page: 127 / 312

127
Chapter 4, Making Measurements
MAHO
Ma
king
Me
asu
re
me
nts
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:
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.
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
displayed. The MAHO BER should be <0.01.
12. Press the SHIFT key then the k1 key. The
Inserted DTC Bit Error Rate
field
should be displayed at the top of the screen.
13. Enter a value between 0.00% and 20.00% in the
Inserted DTC Bit Error Rate
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.
Figure 45 Maho Measurement with Inserted Bit Errors
Enter the number of
bit errors to be
inserted.
Watch here to see the
result of the inserted
bit errors.
MAHO-ERRORS.tif