Keysight Technologies N9330B, Руководство пользователя

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Key Reference 
AMPTD
62
AMPTD
Sets the displayed amplitude range. Use the numerical
keypad to input the amplitude value or rotate the knob
to increase or decrease the amplitude value. 
The tester saves the previous modified amplitude range
and recalls it when the tester is powered on.
The displayed amplitude range is different when the
tester is in different mode:
•
Return loss 
In this mode, the default unit dB does not display on
the screen.
•
Cable loss

In this mode, the default unit dB does not display on
the screen.
• SWR (Standing Wave Ratio)
•
DTF_Return loss

In this mode, the default unit dB does not 
display on the screen.
• DTF_SWR
Top
Sets the displayed top amplitude value.
Tester will automatically revise your input by a minimum
amplitude increment, if you previously input an improper
top amplitude.
Key access:
[AMPTD] > {Top}