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number key pad, scroll knob, or the step keys.
3-5. Measurement Methods
A 80MHz standard signal is generated inside the equipment and is used as a test signal.
1.
Please turn on the device by pressing the ON button on the front panel and wait
until the self test and the alignment process are complete.
2.
Press SYSTEM >> Power On/Preset >> Preset Type >> Factory in order, and select
Factory Preset.
3.
Press
I/O DETECT >> Ref Out (On)
to turn on the 80 MHz standard signal
generated inside the LPT-3000 Spectrum Analyzer.
4.
Please set the frequency by pressing the
FREQUENCY
key.
The Frequency soft key menu is now activated on the right side of the LCD and
the Center Frequency will be displayed on the screen. Using the scroll knob, step
key, or number key pad, please set the center frequency to 80 MHz.
5.
Please set the span by pressing the
SPAN
key.
The Span soft key menu is now activated on the right side of the LCD and the
Span Frequency will be displayed on the screen. Using the scroll knob, step key,
or number key pad, please reduce Span Frequency to 20 MHz.
6.
Please set the amplitude by pressing the AMPLITUDE key
If the peak of the signal does not appear on the screen, you must adjust the
amplitude. Press the AMPLITUDE key. The REF Level soft key menu will be
activated on the right side of the LCD and the Reference Level of 0.0dBm will be
displayed on the screen. Use the scroll knob, keypad, or the numeric keypad to
adjust the REF level to the desired value until you get a good signal. When you
change the reference level values, the amplitude of the highest graticule line will
be changed.
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