Tone Frequency And Dtcs Code; Reverse Tone/Dtcs Squelch; Pocket Beep - Icom IC-T70A Instruction Manual

■ Tone frequency and DTCS code

D Tone and DTCS squelches
The tone squelch (CTCSS) or DTCS squelch opens only
when receiving a signal containing a matching subaudible
tone or DTCS code, respectively. You can silently wait for
calls from group members using the same tone or code.
Separate tone frequencies can be set for repeater and tone
squelch/pocket beep operation.
D Reverse tone/DTCS squelch
The reverse tone/DTCS squelch is convenient if you want to
ignore a specific signal. The transceiver mutes the squelch
when a signal with the matched tone or code is received.
"T SQL-R" / "DTCS-R" is displayed when the reverse tone/
DTCS squelch is set.
D Pocket beep
These functions use subaudible tones or DTCS codes for
calling and can be used as a "common pager" to inform
you that someone has called while you were away from the
transceiver.
OTHER FUNCTIONS
D Setting subaudible tones for tone squelch
q Push [SET] to enter the Set mode.
w Rotate [DIAL] to select the CTCSS tone frequency item.
[DIAL]
e Rotate [VOL] to select a desired CTCSS tone frequency.
• Each operating band and each memory channel have indepen-
dent settings.
• See page 53 for available tone frequencies for details.
r Push [V/M/C] to return to the frequency display.
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