Scope Attenuator - Icom IC-7851 Instruction Manual

D Scope attenuator
While operating in the band with a high noise floor, set
the Scope attenuator to reduce the noise level.
• Even if the Scope attenuator is ON, it does not affect
the receiver sensitivity.
 The Multi-function screens are OFF:
q
Push [SCOPE](F).
• The Spectrum scope screen is displayed.
w
Push [ATT](F) several times to select the Scope at-
tenuator level.
• Selectable levels: 10 dB, 20 dB, 30 dB, and OFF.
• Hold down [ATT](F) for 1 second to turn the Scope at-
tenuator OFF.
e To exit the Spectrum scope screen, push [EXIT/SET].
(F) Function keys
• Scope attenuator (OFF)
• Scope attenuator (10 dB)
• Scope attenuator (20 dB)
• Scope attenuator (30 dB)
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SCOPE OPERATION
[EXIT/SET] [MAIN DIAL]
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