Icom IC-R20 - Manual (Page 17)

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PANEL DESCRIPTION
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DTMF AUTODIAL KEY
Push to transmit the programmed DTMF code.
CALL KEYS
Push to transmit a 2/5-tone code.
• Call transmission is necessary before you call another station de-
pending on your signalling system.
• [Call A] and/or [Call B] keys may be available when your system em-
ploys selective ‘Individual/Group’ calls. Ask your dealer which call is
assigned to each key.
EMERGENCY KEYS
➥ Push and hold to transmit an emergency call.
➥ When [Emergency Single (Silent)] or [Emergency Repeat
(Silent)] is pushed, an emergency call is transmitted without a
beep emission.
• If you want to cancel the emergency call, push (or push and hold)
the key again before transmitting the call.
• The emergency call is transmitted one time only or repeatedly until
receiving a control code depending on the pre-setting.
VOICE SCRAMBLER FUNCTION KEYS
➥ Push to turn the voice scrambler function OFF.
➥ Push and hold to turn the voice scrambler function ON.
OPT OUT KEYS
➥ Push to inactivate the connected output signal level.
➥ Push and hold to activate the connected output signal level.
SIREN KEY
Push to emit a siren. This function can be used for situations other
than an emergency alert such as a security alarm for example.
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