1750 Hz Tone - Icom ID-31A Advanced Instructions

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■ 1750 Hz tone

To access most European repeaters, the transceiver
must transmit a 1750 Hz tone. For such European re-
peaters, perform the following.
• This tone can also be used as a 'Call signal.'
For only the ID-31E:
Push [PTT] briefly, then hold down [PTT] to transmit
a 1750 Hz tone burst signal.
Push D-pad( ) to select the root item ("DTMF/T-
q
CALL"), and then push D-pad(Ent).
D-pad
(Ent)
(�)
Push D-pad( ) to select "DTMF Memory," and then
w
push D-pad(Ent).
Rotate [DIAL] to select "T-CALL," and then push
e
D-pad(Ent) to set.
Push [MENU]
r
Rotate [DIAL] to set the receive frequency (repeater
t
output frequency).
Set the duplex offset direction. (p. 1-5)
y
• "DUP–" or "DUP+" appears.
While holding down [PTT], push [SQL] to transmit a
u
1750 Hz tone signal.
• If "OFF BAND" appears, check the offset frequency or
shift direction. (pp. 1-4, 1-5)
• While transmitting, the displayed frequency automati-
cally changes to the transmit frequency (repeater input
frequency).
Hold down [SQL] to check whether the other sta-
i
tion's transmit signal can be received directly or not,
by listening on the repeater input frequency.
• While monitoring, the TX/RX indicator lights green, and
the S/RF meter dot blinks.
• While monitoring, the displayed frequency automatically
changes to the transmit frequency (repeater input fre-
quency).
• If you can hear the other station, you may want to change
to the Simplex mode and contact directly.
Push [PTT] to transmit.
o
!0 Release [PTT] to receive.
to exit the MENU screen.
REPEATER AND DUPLEX OPERATIONS
[PTT]
[SQL]
1-7
1
[DIAL]
1
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