Icom IC-A4 0TRANSMIT Indicator, 1EXTERNAL DC Power Jack Charge, 2SPEAKER/MICROPHONE

➥When memory mode is selected, this switch sets the dis- played channel as a scan lock-out channel when pushed for 2 sec. (p. 8)

-“SKIP” appears on the display.

iSQUELCH SWITCH [SQL]

➥Push and hold to open the squelch. (p. 6)

➥While pushing [SQL], push [Y]/[Z] to select the squelch level. (p. 6)

-9 squelch levels and squelch open are available.

o FUNCTION DISPLAY (p. 4)

!0TRANSMIT INDICATOR

Lights red while transmitting.

!1EXTERNAL DC POWER JACK [CHARGE]

Connect a 12 to 16 V DC power source using the optional cables, CP-12L or OPC-254L, to charge the attached bat- tery pack; or connect the BC-110V wall charger for charg- ing.

CAUTION: This connection is for charging ONLY. Power to the transceiver must be turned OFF during charging.

!2SPEAKER/MICROPHONE

PANEL DESCRIPTION 2

!3EXTERNAL SPEAKER AND MICROPHONE JACKS [SP/MIC]

➥Connect an optional speaker-microphone or headset, if desired. The internal microphone and speaker will not function when either is connected. (See p. 18 for a list of available options.)

➥Side tone function is available when an optional head- set adapter is connected. (pgs. 6, 18)

!4ANTENNA CONNECTOR (p. 1)

Connects the supplied antenna.