ICOM 284401 Manuale Utente

11-12

Sets the dial click function for the main dial from Auto
or Manual. 

• Auto

: Sets the dial click function automatically

when a tuning step is set higher than 5
kHz or changing the set mode contents,
etc. (default)

• Manual : Sets the dial click function manually.

NOTE: When “Manual” is selected, set the next
item “MAIN DIAL CLICK” ON or OFF.

Sets the dial click function ON or OFF. This item can
be set when the previous item “MAIN DIAL Click
Mode” is set to “Manual.”

NOTE: When the previous item is set to “Auto,” this
item is fixed “Auto.” 

• Auto : Selection can not be changed, set the previ-

ous item to “Manual” in advance. (default)

• ON : The dial click function is ON, “CLICK” indica-

tor appears on the display.

• OFF : The dial click function is OFF.

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Sets the auto tuning step function for the main dial.
When rotating the main dial rapidly, the tuning step
automatically changes several times as selected. 

There are 2 type of auto tuning steps: HIGH (Fastest)
and LOW (Faster). (default: HIGH)

• HIGH

: Auto tuning step is turned ON. Fastest tun-

ing step during rapid rotation. (default)

• LOW

: Auto tuning step is turned ON. Faster tun-

ing step during rapid rotation.

• OFF

: Auto tuning step is turned OFF.

Selects the dial click function while setting the set
mode items, etc. from ON and OFF. (default: ON)

• ON : The main dial click function is ON.
• OFF : The main dial click function is OFF.

Selects the main dial function while scanning from
OFF and Up/Down. (default: Up/Down)

• OFF

: The main dial stops scan.

• Up/Down

: The main dial changes scanning direc-

tion Up or Down.

The AFC function automatically compensates the tun-
ing when a received frequency drifts or goes off fre-
quency.

This item sets the AFC limit function ON and OFF.

• ON : AFC function stops to tune when frequency

goes off the limited frequency range even if
received frequency is off frequency. (default)

• OFF : AFC function continues to tune until displayed

frequency changes to reflect the center of the
signal.