Icom ID-31A

29
5
BASIC OPERATION
New2001 New2001
■ Repeater operation
When using a repeater, the transmit frequency is shifted from
the receive frequency by the frequency offset (p. 33). This is
calledduplexoperation.Itisconvenienttoprogramrepeater
information into memory channels (p. 28).
Station A
Station B
Repeater
439.700 MHz
434.700 MHz
434.700 MHz
439.700 MHz
Uplink
Downlink
(transmitting freq.)
(receiving freq.)
Set the receive frequency (repeater output frequency). q
Set the shift direction of the transmit frequency in the Quick w
Menu(DUP–orDUP+;seenextpagefordetails).
 •WhentheAutoRepeaterfunctionisinuse(onlyU.S.A.,Canada
and Korean versions), this selection and step e are not necessary.
(p. 44)
“DUP–” or “DUP+” appears
If desired, activate the subaudible tone encoder in the e
QuickMenu(seenextpagefordetails).
“TONE” appears
r Hold down [PTT] to transmit.
 •Thedisplayedfrequencyautomaticallychangestothetransmit
frequency (repeater input frequency).
 •If“OFFBAND”appears,checkthefrequencyoffsetandshift
direction. (p. 33)
While receiving While transmitting
t Release [PTT] to receive.
y Hold down [SQL] to check whether the other station’s
transmit signal can be directly received or not.
 •Whentheotherstation’ssignalcanbedirectlyreceived,move
to a non-repeater frequencytousesimplex(duplexOFF).
U.S.A., Canada and Korean versions:
Auto repeater function uses standard values of the re-
peater tone frequency and offset frequency.