29
4
BASIC OPERATION
■ Repeater operation
When using a repeater, the transmit frequency is shifted from
the receive frequency by the offset frequency. (p. 31) It is con-
venient to program repeater information into memory chan-
nels. (p. 37)
q Set the receive frequency (repeater output frequency).
w Set the shift direction of the transmit frequency. (–DUP or
DUP; see p. 31 for details.)
• When the auto repeater function is in use (U.S.A. and Korea ver-
sions only), this selection and step e are not necessary. (p. 33)
e Push [2 TONE] for 1 sec. to activate the subaudible tone
encoder, according to repeater requirements.
•“T” appears. Refer to p. 70 for tone frequency settings.
r Push and hold [PTT] to transmit.
• The displayed frequency au-
tomatically changes to the
transmit frequency (repeater
input frequency).
• If “OFF” appears, check the
offset frequency or shift di-
rection. (p. 31)
t Release [PTT] to receive.
y Push and hold [SQL] to check whether the other station’s
transmit signal can be directly received or not.
U.S.A. and Korea versions:
Auto repeater function uses the settings of the repeater
tone frequency and offset frequency.
FM DUP SKIPTP
FM DUP SKIPTP
While receiving While transmitting
FM DUP SKIPTP
“DUP” appears.
Station A
Station B
Repeater
439.340 MHz
434.340 MHz
434.340 MHz
439.340 MHz
Uplink
Downlink
(transmitting freq.)
(receiving freq.)
Lights
red while
transmitting.
[PTT]
IC-T90A_IM.qxd 02.6.6 08:44 AM Page 32 (1,1)
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