ICOM 297400 Manuale Utente

20

4

OTHER FUNCTIONS

■

When two headphone and microphone jacks are connected 
to the transceiver, these headsets can be used as a voice-
activated intercom.
q

  Enter to the MENU mode.

 • See page 22 for details.

w

  Set Intercom Usable Setting to ON.

 • See page 26 for details.

e

  Exit from the MENU mode.

 • See page 22 for details.

r

  Hold down 

[DUAL] for 2 seconds to enable the intercom 

function.

 • “ICS” appears.

• The headphone audio output level can be selected

“OFF,” “output level fixing (001–080)” or “interlocking 
with [VOL]” in the MENU mode (p. 23).

• The microphone1 and microphone2 audio input levels

can be also selected “OFF” or “output level fixing (001–
080)” in the MENU mode (p. 23).

■

This function opens the squelch manually for testing.
q

  Push 

[VOL] to turn the squelch test function ON.

 • “TEST” appears.

w

  To turn the function OFF, repeat step q as above.

 • “TEST” disappears.

■

  

Frequency step (8.33 kHz or 25 kHz) is selectable in the 
menu mode.
q

  Enter the menu mode (See page 22 for details).

w

  Rotate 

[O-DIAL] to select the “FREQ. STEP (Frequency 

step).”

e

  Rotate 

[DIAL] to select the desired frequency step  

(8.33 kHz or 25 kHz).

r 

 Push 

[RCL] to exit MENU mode, and returning to the pre-

vious operating condition.