Kenwood FM Transceiver TK-481 Service Manual page 10

Status 80~99 (Special)
Status numbers from 80 to 99 are reserved for special
purposes. Entering these statuses from the DTMF keypad
can be inhibited.
Please notice that the following status numbers are used
for special purposes;
80~87 : Reserved for future use.
88 : Terminates to emergency mode.
89 : Request for hornalert (For Mobile).
90 : Remote stun on. Disable the received radio unit's
TX.
91 : Remote stun on. Disable the received radio unit's
TX/RX.
92 : Cancel remote stun. Enable the received radio unit's
TX/RX.
93 : Acknowledgement status sent when the radio unit is
in stun mode (TX disabled).
94 : Acknowledgement status sent when the radio unit is
in stun mode (TX/RX disabled).
95~97 : Reserved for future use.
98 : Man Down Emergency status.
99 : Emergency Status.
Note : Remote stun works with DTMF D.B.D. function also.
Automatic Status Response
If you pre-select a status number and leave the radio in
the Status Mode, it can automatically respond with the se-
lected status number upon request from the base station.
(The request function is initiated by serial control on the
base station (Optional).)
6-6. Short Message (Optional)
A maximum of 48 characters can be sent (External equip-
ment is required). Received Short Messages will be dis-
played in the same manner as a Status Message. A maxi-
mum of 4 received messages can be stored in the stack
memory. In the Stack Mode, 3-digit LCD indicates the re-
ceived Short Message as "M01"~"M04".
6-7. Long Message (Optional)
A maximum of 1024 characters can be sent (External
equipment is required). Received Long Message will not be
displayed or stacked in the radio memory but is output
through the COM (Data) port.
6-8. Emergency Function
Emergency status 99 will be sent at the beginning of
each emergency transmission.
Emergency Status response
"Alert" can be selected for the called radio unit's re-
sponse to reception of status 99 which is used as an emer-
gency status.
6-9. Other Functions
Manual Dial
Fleet, ID and Status numbers can be entered from DTMF
keypad. (DTMF microphopne is required.)
OPERATING FEATURES
as a communication partner.
message/stack mode to Normal mode.
whether on the Data System/Group.
output or not from serial port.
operation.
(MSK) for FleetSync singalling is encoded.
memory.
6-10. Parameters
fore transmitting a data message if it is being made on Data
System/ Group. If a radio unit receives a GTC message, it
will move to the Data System/Group of the current system.
Increase this item to make sure the called radio unit moves
to the Data System/Group.
mode) is busy, radio unit will not transmit (depending on its
Busy Channel Lockout setting in conventional mode). As
soon as a channel is cleared, some transmissions may
crash. Random access is used to avoid this by employing a
random transmission sequence.
TK-480/481
FleetSync™ Baud Rate
MSK data baud rate setting. The same rate must be set
1200bps :
Data communication is made in 1200bps. The communi-
cation area is much wider than 2400bps. Recommended
for repeater operation.
2400bps :
Data communication is made in 2400bps. The communi-
cation area is narrower than 1200bps, but it will decrease
the data traffic. Data rate 2400bps may not work prop-
erly depending on the repeater's characteristic.
Message Mode Timer
Message Mode Timer is a delay timer returning from
Status/Short/Long Message on Data Group
Status/Short/Long Message transmission is made
Status/Short/Unit ID Message Serial Output
(Option)
Whether a received Status/Short message or PTT ID is
Call Alert (Continuous)
The radio can provide the alert tone repeatedly until next
PTT ID Sidetone
This function allows a single beep sound after the PTT ID
Caller ID Stack
The radio stores the last 3 received caller IDs to volatile
Caller ID Display
PTT ID is displayed on LCD.
GTC Count
Number of Go To data Channel messages to be sent be-
Random Access (Contention)
When a channel (or all the repeater channels for Trunking
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