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JD780A Series Analyzers
c.
Press the Enter soft key.
4.
To set the threshold between Auto and Manual, complete the following steps:
a.
Press the Threshold soft key. Its default setting is -27 dB.
b.
Enter a value between -50 and zero by using the numeric keys to change the value in the
Manual mode.
c.
Press the Enter soft key.
5.
Toggle the Q-Paging soft key between On and Off to enable or disable the quick page channel
that indicates the power of Quick Page Walsh code 80.
6.
Optional. Go to SAVE/LOAD > Save, and then select the save option from the choices available
for your measurement mode. See "Using save" on page 31 for more information.
Measurement example
Figure 165 Code domain power measurement with CDMA signal analyzer
NOTE
You can use the LIMIT hot key to analyze your measurements with the user-definable
limit and Pass/Fail indication. See "Setting limit for modulation tests" on page 355 for
more information.
Setting display
You can view .your measurement results in a different view option.
Procedure
1.
Press the TRACE/DISPLAY hard key.
2.
Press the Code Order soft key, and then select the code order option from the following choices:
–
Hadamard: To assign the number based on Walsh code order and display the measured
code power according to the assigned number in sequence.
–
Bit Reverse: Code number in binary bit is reversed relative to the Hadamard method.
3.
Toggle the Base Code Length soft key and select the base Walsh code number: 64 or 128.
350
Using CDMA Signal Analyzer
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