Tone Squelch And Pocket; Beep; Tone Squelch - Icom IC-455 Instruction Manual

Uhf cb transceiver

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TONE SQUELCH AND POCKET BEEP

NOTE: CB channels 5 and 35 are for only emergency use. The Tone Squelch or Pocket

Beep function is not selectable on these channels.

The transceiver is equipped with 51 CTCSS tone frequencies and 104 DTCS codes.

The CTCSS/DTCS operation enables you to communicate in the silent standby mode

because you will only receive calls from group members using the same CTCSS tone

frequency or DTCS code.

D Setting CTCSS tone frequency or DTCS

code

Open the "CTCSS/DTCS" screen.

[MENU] > Settings > CTCSS/DTCS

Select "CTCSS" or "DTCS," and then push [►] or

[ENT].

Push [▲] or [▼] to set a CTCSS tone frequency or

DTCS code, and then push [ENT] to set it.

• When the Tone Squelch or Pocket Beep function is

turned ON, the selected CTCSS tone frequency or DTCS

code is displayed on the operating screen.

L Push [CLEAR] to return to the previous screen.

NOTE:

• The selectable CTCSS tone frequencies and DTCS

codes are listed on the next page.

• The transceiver has 51 tone frequencies so their spacing

is narrow, compared to units having 38 tones. Therefore,

some tone frequencies may receive interference from

adjacent tone frequencies.

• If the transceiver receives a signal with no code or a

code that is different from the code set in the transceiver,

the TX/RX indicator lights green, but the received signal

is not output from the speaker.

The "CTCSS" screen

The "DTCS" screen

CTCSS tone frequency

DTCS code

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