I 1750 Hz Tone - Icom IC-91A Instruction Manual

I 1750 Hz tone

Some European repeaters require a 1750 Hz tone burst to be
accessed. For such European repeaters, perform the follow-
ing.
• This tone can be use as a 'Call signal' in countries out of Europe.
q Push and hold [DTMF.M](.) for 1 sec. to select DTMF
memory.
r
w Rotate [DIAL] †
counter-clockwise until "T-CALL" appears.
r
e Push [ï](5) to set.
r Push [VFO] to exit DTMF memory.
t Set the receive frequency
y Set the shift direction of the transmit frequency.
+DUP; see p. 31 for details.)
u While pushing [PTT], push [SQL] to transmit a 1750 Hz
tone burst signal.
• If "OFF" appears, check the offset frequency or shift direction.
(p. 97)
• The displayed frequency automatically changes to the transmit
frequency (repeater input frequency).
.
(repeater output frequency)
(–DUP or
REPEATER AND DUPLEX OPERATIONS
i Push and hold [PTT] to transmit.
o Release [PTT] to receive.
!0 Push and hold [SQL] to check whether the other station's
transmit signal can be received directly or not, by listening
on the repeater input frequency.
[DIAL] ↔ [∫ ∫ ](2)/[√ √ ](8)
†
6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
33