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JD780A Series Analyzers
Measurement example
Figure 48
Channel scanner measurement with GSM OTA signal analyzer
Frequency scanner
Setting frequency
Procedure
1.
Press the FREQ/DIST hard key.
2.
To set the starting frequency to be scanned, complete the following steps:
a.
Press the Start Frequency soft key.
b.
Enter a value by using the numeric keys. You can also use the rotary knob.
c.
Select the unit: GHz, MHz, kHz, or Hz.
3.
To set the amount of frequency increment in scanning frequencies, complete the following steps:
a.
Press the Frequency Step soft key.
b.
Enter a value by suing the numeric keys. You can also use the rotary knob.
c.
Select the unit: GHz, MHz, kHz, or Hz.
4.
To set the number of frequencies to be displayed, complete the following steps:
a.
Press the # of Frequencies soft key.
b.
Enter a value by using the numeric keys. You can also use the rotary knob.
c.
Press the Enter soft key.
Setting zoom position
You can set the starting channel for the Zoom Window.
Procedure
1.
Press the TRACE/DISPLAY hard key.
2.
Press the Zoom Position soft key.
146
Using GSM/GPRS/EDGE Signal Analyzer
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