Icom IC-455 - Other Functions; Smart Ring and ATS (Automatic Transponder System); Smart Ring; ATS

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OTHER FUNCTIONS
■ Smart Ring and ATS
(Automatic Transponder System)
1. Open the “Transponder” screen.
[MENU] > Transponder
2. Select “Smart Ring,” and then push [ENT] to transmit a
Smart Ring call.
• The TX/RX indicator lights red.
• When a group member answers the call, “ë” blinks, and
“Found” is displayed, and then the TX/RX indicator lights
green and turns OFF.
• If no answer is received, the transceiver will sound short
faint beep tones, and “Not Found” is displayed.
3. Push [PTT] to answer and stop the blinking.
NOTE: This function is usable only if the called station
has the same CTCSS tone frequency and operates on
the same channel. A called station automatically sends
an answer back signal without any presetting. All the
IC-455s are set to the same operating channel within the
communication area, and send an answer back call.
These functions have an answer back feature and conrmation function for when a call
has reached the called station, even if the user is temporarily away from the transceiver.
Smart Ring is a manual conrmation, and ATS is automatic.
D Smart Ring
Set the same CTCSS tone frequency to all Group transceivers, and then turn ON the
Tone Squelch function. (p. 16)
D ATS
1. Open the “ATS” screen.
[MENU] > Transponder > ATS
2. Select “On,” and then push [ENT] to turn ON the ATS
function.
• When a receive channel is selected, an error beep
sounds.
• The transceiver starts to send searching signals every 60
seconds.
• The TX/RX indicator lights red and “
” blinks.
• When the transceiver receives an answer back signal,
“
” is displayed ON until the next search starts.
• If no reply is received, “
” blinks until the next search
starts.
3. Select “Off” to turn OFF the ATS function.