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21
3
MDC 1200 SYSTEM OPERATION
D
Transmitting a Radio Check Call
A Radio Check call allows you to determine whether the tar-
geted station is turned on, within the communication range
and on channel without requiring any action from the targeted
station user.
q
Push
[MDC Call]
to enter the MDC menu selection mode.
w
Push
[CH Up]
or
[CH Down]
to
select “
RADIOCHK
”.
R A D I O C H K
e
Push
[MDC Call]
again to enter the transceiver alias se-
lection mode.
r
Push
[CH Up]
or
[CH Down]
to select the desired alias.
t
Push
[PTT]
to transmit the radio check call to the selected
station.
• “
RDO CHK
” is displayed.
y
Release
[PTT]
.
• “
CHK ACK
” is displayed if the targeted station is turned ON, on
channel and within the communication range.
• “
CHK FAIL
” is displayed if the targeted station does not send
back an acknowledgement.
u
After a specified time period has passed, the transceiver
will return to receive.
D
Transmitting a Status Message
A Status Messaging allows you to send a preprogrammed
status message. There are 16 status codes that can be sent.
In addition, the transceiver can send an MDC 1200 system
signal that causes the targeted station to automatically trans-
mit its current status.
q
Push
[MDC Call]
to enter the MDC menu selection mode.
w
Push
[CH Up]
or
[CH Down]
to select “
STATUS
”.
S T A T U S
e
Push
[MDC Call]
again to enter the status message selec-
tion mode.
S T A T U S
S T A T U S 1
Preprogrammed
status message
is displayed.
r
Push
[CH Up]
or
[CH Down]
to select the desired status
message.
t
Push
[PTT]
to transmit the selected status message.
• “
STAT TX
” is displayed.
y
Release
[PTT]
.
• “
STAT OK
” is displayed if the targeted station sends an acknowl-
edgement.
• “
STA FAIL
” is displayed if the targeted station does not send
back an acknowledgment.
u
After a specified time period has passed, the transceiver
will return to receive.