Tone Scan - Icom IC-T70A Instruction Manual

10
OTHER FUNCTIONS

■ Tone scan

The transceiver can detect the subaudible tone frequency
and DTCS code in a received signal. By monitoring a signal
that is being transmitted on a repeater input frequency, you
can determine the tone frequency required to access the re-
peater.
q Set the desired frequency or memory channel to be
checked for a tone frequency or DTCS code.
w Push and hold [TONE](0) for 1 sec. repeatedly to activate
the repeater tone, tone squelch or DTCS squelch. (T,
T SQL or DTCS)
e Push and hold [T.SCAN](#) for 1 sec. to start the tone
scan.
• To change the scanning direction, rotate [DIAL].
r When the tone frequency or DTCS code is decoded, the
set mode contents are programmed with the frequency or
code.
• The tone scan pauses for the set period in scan pause timer
(p. 47) when a tone frequency or DTCS code is detected.
• The decoded tone frequency is used for the repeater tone fre-
quency when any tone setting, such as repeater tone or tone
squelch is OFF.
• The decoded tone frequency is used for the tone squelch fre-
quency when the tone squelch is ON.
• The decoded DTCS code is used for the DTCS squelch code
when the DTCS squelch is ON.
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t Push [V/M/C] to stop the scan.
• If the scan is cancelled before the transceiver detects the tone
or code, the set mode contents are not changed.
• The detected tone is used for temporary operation only.
The stored tone setting in memory or call channel won't be
changed.
NOTE: Tone frequency is over-written automatically when
it corresponds with the scanning tone frequency in tone
squelch mode. However, it is not over-written in memory or
call channel mode.
Tone scan for repeater tone
Tone scan for tone squelch
Tone scan for DTCS squelch