56
7 DV MODE OPERATION (Optional UT-121 is required for IC-91A)
■ EMR communication
The EMR communication mode is available for digital mode
operation. In the EMR communication mode, no call sign set-
ting is necessary. When an EMR communication mode sig-
nal is received, the audio (voice) will be heard at the specified
level even the volume setting level is set to minimum level, or
digital call sign/digital code squelch is in use.
qSet the desired frequency in 144 or 440 MHz band then
push and hold [EMR](.) until 3 short and 1 long beeps
sound to turn the EMR setting ON.
•“EMR” appears
wOperate the transceiver normal way.
eTo cancel the EMR communication mode, push and hold
[EMR](.) for 1 sec. to turn OFF.
■
Low-speed data communication
In addition to the digital voice communication, low-speed data
communication is available.
The optional OPC-1529R
DATA COMMUNICATION CABLE
and se-
rial data communication software
(purchase locally) are re-
quired in addition.
The optional RS-91
REMOTE CONTROL SOFTWARE
(OPC-1529R
supplied) also includes a low-speed data communication ca-
pability.
NOTE: Turn OFF the GPS mode
(p. 58)
in advance to op-
erate the low-speed data communication.
DD
Connection
Connect the transceiver to your PC using with the optional
OPC-1529R as illustrated below.
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