Chapter 6
Using GSM/GPRS/EDGE Signal Analyzer
166
JD700B Series User’s Guide
Setting limit for OTA frequency scanner
Procedure
1
Press the
LIMIT
hot key.
2
Press the
Limit Line
soft key to set a threshold for the limit line and Pass/Fail indication.
3
Enter a value, and then press the
dBm
unit soft key.
4
Toggle the
Limit Line
soft key between
On
and
Off
to display or dismiss the limit line.
5
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.
6
Optional
. Go to
SAVE/LOAD > Save
, and then select
Limit
to save the limit settings.
See “Using save” on page 35 for more information.
Measurement example
Figure 81 Frequency scanner measurement with GSM OTA signal analyzer
Multipath profile
The Multipath Profile let you determine RF environmental conditions of testing area. The multipath profile is
the result of portions of the original broadcast signal arriving at the receiving antenna out of phase. This can
be caused by the signal being reflected off objects such as buildings, or being refracted through the
atmosphere differently from the main signal.
Setting measure setup
After configuring test parameters as described in the “Configuring test parameters” on page 145, you can
continue your measurement. The measurement settings can be saved and recalled as a file.
Procedure
1
Press the
MEASURE SETUP
hot key.
2
Press the
Detect Mode
soft key, and then select the signal standard option:
Auto
,
GSM
, or
EDGE
.
Auto is set by default. The instrument applies a mask automatically based on the selected mode.
3
Optional
. To set the delay, complete the following steps:
Press the
Miscellaneous
soft key.
Содержание CellAdvisor JD700B Series
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