Manual Icom IC-F521 F621 EX(BIIS) (page 5 of 36) (English)

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PANEL DESCRIPTION

New2001

tDEALER-PROGRAMMABLE KEYS [P0] to [P4]

Desired functions can be programmed independently by

your Dealer. However, the following functions are assigned

as the default for BIIS operation.

[P0] : [CALL]

Push to transmit a 5-tone/BIIS call.

• Call transmission is necessary before you call another

station, depending on your signalling system.

[P1] : [DIGITAL]

➥ Push to select the call ID list, transmit message

or standby condition. Toggles between queue

channel and received message record after

queue channel is selected.

➥

Push for 1 sec. to select queue channel indication.

[P4] : [MONI]

Activates one of

(or two of) the following functions on

each channel independently.

• Push and hold to unmute the channel (audio is emitted;

‘audible’ condition).

• Push to toggle the mute and unmute conditions (toggles

‘audible’ and ‘inaudible’)

• Push to mute the channel

(sets to ‘inaudible’ only).

• Push to unmute the channel

(sets to ‘audible’ only).

• Push after communication is finished to send a ‘reset

code.’

•

Push after communication is ﬁnished to send a ‘clear down

code’ during BIIS operation on an MSK channel.

NOTE: The unmute condition (‘audible’ condition)

may automatically return to the mute condition

(‘inaudible’ condition) after a speciﬁed period.

*No function is assigned for [P2] and [P3].

yPOWER SWITCH [ ]

Push to turn the power ON and OFF.

• The following functions are available at power ON as options:

- Automatic scan start

- Password prompt

- Set mode

uMICROPHONE CONNECTOR

➥Connect the supplied microphone or optional DTMF mi-

crophone for SmarTrunk II™ operation here.

NEVER connect non-speciﬁed microphones. The pin

assignments may be different and the transceiver may

be damaged.

MICROPHONE

➥The supplied microphone has a PTT switch and a

hanger hook.

• The following functions are available when the microphone

is on or off hook:

- Automatic scan start when on hook.

- Automatic priority channel selection when off hook.

- Sets to ‘Inaudible’ condition (mute condition) when on hook.

- Sets to ‘Audible’ condition

(un-mute condition) when off hook.

IC-F521 Series_BIIS-2.qxd 05.10.26 11:30 AM Page 2 (1,1)

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Icom IC-F521 F621 EX(BIIS) Manual

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