Chapter 13
Using Mobile WiMAX Signal
Analyzer
JD700B Series User’s Guide
481
3
To set the start/stop symbols, complete the following steps:
Press the
Start Symbol
soft key.
Enter a value by using the numeric keys, and then press the
Enter
soft key.
Press the
Stop Symbol
soft key.
Enter a value by using the numeric keys, and then press the
Enter
soft key.
4
Toggle the
Preamble Index
soft key and select the preamble search method:
Auto
or
Manual
.
5
Toggle the
Search Type
soft key and select
Full
or
Window
.
6
Toggle the
Video Filter
soft key and select
On
or
Off
to enable or disable the video filter.
7
Optional
. Press the
Miscellaneous
soft key, and then do the following as needed:
To set the delay, complete the following steps:
Press the
Delay
soft key to set the amount of delay in µs.
Enter a value by using the numeric keys. You can also use the rotary knob.
Press the
µs
soft key.
NOTE
The Delay setting is used only when there is a time offset in the signals to be measured.
To select the detect mode, press the
Detect Mode
soft key and then select the option:
Auto
,
QPSK
,
16 QAM
, or
64 QAM
.
Setting limit for power vs. time tests
Procedure
1
Press the
LIMIT
hot key.
2
Press the
PvsT Test Limits
soft key.
3
Select the test item(s) and set the limit(s):
To set the limit for
Select
Set
Preamble power
Preamble Power
High Limit, Low Limit
Downlink burst power
DL Burst Power
High Limit, Low Limit
Uplink burst power
UL Burst Power
High Limit, Low Limit
Frame average power
Frame Average Power
High Limit, Low Limit
Time offset
Time Offset
High Limit, Low Limit
I/Q origin offset
IQ Origin Offset
High Limit
4
Optional
. You can enable alarm sound that goes off if the measurement falls outside of the limit.
Toggle the
Beep
soft key between
On
and
Off
to enable or disable the beep sound.
5
Optional
. Go to
SAVE/LOAD > Save
, and then select
Limit
to save the limit settings.
See “Using save” on page 35 for more information.