Icom IC-T70A - 1750 Hz Tone Burst Transmission

New2001
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REPEATER AND DUPLEX OPERATIONS
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■ 1750 Hz tone
To access some European repeaters, the transceiver must
transmit a 1750 Hz tone burst. For such repeaters, perform
the following.
•Thistonecanbeuseasa‘Callsignal’incountriesoutofEurope.
q Push [SET] to enter the Set mode.
w Rotate [DIAL] to select the DTMF key item, then rotate
[VOL] to set to “t-CALL.”
[VOL]
[DIAL]
Tone call setting
DTMF key setting
e Push [V/M/C] to return to the frequency display.
r Set the receive frequency (repeater output frequency).
t Set the shift direction of the transmit frequency.
(–DUP or
+DUP; see p. 26 for details.)
y While continuing to push [PTT], push [MONI](BAND) to
transmit a 1750 Hz tone burst signal.
 •If“OFF”appears,checkthefrequencyoffsetorshiftdirection.
(p. 26)
 •Thedisplayedfrequencyautomaticallychangestothetransmit
frequency (repeater input frequency).
u Push and hold [PTT] to transmit.
i Release [PTT] to receive.
o Push and hold [MONI](BAND) to check whether the other
station’s transmit signal can be received directly or not, by
listening on the repeater input frequency.
✔ CONVENIENT! (For the IC-T70E only)
q Set the receive frequency
(repeater output frequency).
w Set the shift direction of the transmit frequency.
(–DUP or
+DUP; see p. 26 for details.)
e Push [PTT] briefly, then push and hold [PTT] again for 1 to
2 sec. to transmit a 1750 Hz tone burst signal.
 •If“OFF”appears,checkthefrequencyoffsetorshiftdirection.
(p. 26)
 •Thedisplayedfrequencyautomaticallychangestothetransmit
frequency (repeater input frequency).
r Push and hold [PTT] to transmit; release to receive.