Icom ID-31A [38/80] Repeater operation

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

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.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. and Korean versions:

Auto repeater function uses standard values of the re-

peater tone frequency and offset frequency.