Datasheet

4.13. Auto Range
Auto change the amplitude parameters whitin current span for easy view of the signal display in main
screen.
Figure 2-4 Before Auto range
Figure 2-5 After Auto range
Key points:
 The difference between Auto Range and Auto Scale is that Auto Range can solve the
overrange problem caused by parameter setting and adjust the max. mix level to accords with
signal.
 The difference between Auto Range and Auto is that: Auto Range adjusts the main channel
signal but not change the frequency settings. Auto searches signal in full span and locate the
signal at the center frequency.
4.14. Int Preamp
Turn on or off the preamplifier located at front of RF. When the function enabled, the
preamplifier will reduce the display average noise level in order to distinguish the small signal
among noises.
Key points:
 The icon will be displayed on the left screen when the preamplifier is on.
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