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Procedure
To set the start and stop frequencies:
1.
Press the FREQ/DIST hard key.
2.
Press the Start Frequency soft key.
3.
Enter a value by using the numeric keys. You can also use the rotary knob or the arrow keys.
4.
Select the unit: GHz, MHz, kHz, or Hz.
5.
Press the Stop Frequency soft key.
6.
Enter a value by using the numeric keys. You can also use the rotary knob or the arrow keys.
7.
Select the unit: GHz, MHz, kHz, or Hz.
To set the center frequency and span:
1.
Press the FREQ/DIST hard key.
2.
Press the Center Frequency soft key.
3.
Enter a value by using the numeric keys. You can also use the rotary knob or the arrow keys.
4.
Select the unit: GHz, MHz, kHz, or Hz.
5.
Press the Span soft key.
6.
Enter a value by using the numeric keys. You can also use the rotary knob or the arrow keys.
7.
Select the unit: GHz, MHz, kHz, or Hz.
To select the band from the band list:
1.
Press the FREQ/DIST hard key.
2.
Press the Band List soft key, and then select Standard Band or Custom Band.
The band list window appears.
3.
Select a frequency band from the list, and then press the Select soft key.
The start and stop frequency information on the screen changes according to your choice.
Setting distance
In the DTF measurement mode, you need to set the start and stop distances. The maximum
measurable distance is displayed on the left side of the screen depending on the frequency setting.
You can set any distance within the maximum measurable distance. Optimum resolution is achieved
when the user setting distance is the same as the maximum measurable distance
Procedure
1.
Press the FREQ/DIST hard key.
2.
Press the Start Distance soft key.
3.
Enter a value by using the numeric keys. You can also use the rotary knob or the arrow keys.
4.
Select the Enter soft key.
5.
Press the Stop Frequency soft key.
6.
Enter a value by using the numeric keys. You can also use the rotary knob or the arrow keys.
7.
Select the Enter soft key.
Using Cable and Antenna Analyzer
JD780A Series Analyzers
493
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