4
TK-980/981
• AUX-A
If this key is pressed, “AUX” icon lights on the LCD and
AUX port which is inside of the transceiver turns to the high
level. If pressed again, the “AUX” icon goes off and the
AUX ports turns to the lower level.
• AUX-B
This function can be programmed when the voice scram-
bler board is not installed.
If this key is pressed, an underscore (“_”) appears at the
extreme right of the LCD and AUX port which is inside of the
transceiver turns to the active level. If pressed again, the
underscore disappears and the AUX ports turns to the
deactive level.
• DTMF ID (BOT)
In conventional mode, if you press this key, a predeter-
mined DTMF ID (Begin of TX) will be sent automatically.
• DTMF ID (EOT)
In conventional mode, if you press this key, a predeter-
mined DTMF ID (End of TX) will be automatically sent.
• Display character
This key switches the LCD display between the system
and group number and the system and group name.
• Emergency
Pressing this key for longer than the programmed “Emer-
gency Key Delay Time” causes the transceiver to enter the
emergency mode. The transceiver jumps to the pro-
grammed “Emergency system and group” and transmits for
the programmed “Active Time”.
The transceiver disables mic mute while transmitting.
After finishing transmission, the transceiver receivers for
the programmed “Interval Time”. The transceiver mutes
the speaker while receiving. Following the above sequence,
the transceiver continues to transmit and receive.
• Function
Pressing this key causes the transceiver to display
“FCN”. Then, pressing a microphone DTMF key causes the
corresponding programmed function to start. This key may
be convenient when using many functions with the micro-
phone 12-key keypad.
• Group Up/Down
When the key is pressed each time, the group number to
be selected is incremented/decremented and repeats if held
for one second or longer.
• Home Group
Each pressing of the key selects a preset system/group.
OPERATING FEATURES
• Horn Alert
If you are called from the base station using DTMF while
you are away from your transceiver, you will be alerted by
the vehicle horn or some other type of external alert. To turn
the horn alert function on , press this key. A confirmation
tone sounds, and the display shows “HA” on the sub LCD.
If this key is pressed again, the horn alert function is
turned off.
• Key Lock
Pressing this key causes the transceiver to accept entry
of only the [Function], [Key lock], [PTT], [Monitor A], [Moni-
tor B], [Monitor C], [Monitor D], and [Emergency] keys.
• Message Mode
Press this key to enter the message mode. (See “Alpha-
numeric Two-way Paging Function” for details)
• Memory
This key allows DTMF memory data to be recalled; up to
32 memories each with a memory dial of up to 16 digits and
an A/N of up to 10 digits per memory.
• Monitor
Used to release signalling or squelch when operating as a
conventional. It is also used to reset option signalling.
• Public Address
Public address amplifies the microphone audio, and out-
puts it through a PA speaker. PA is activated by pressing
this key. A confirmation tone sounds, and the display
shows “PUBLIC ADRS”. PA can be activated at anytime
(scanning or non-scanning).
The RADIO continues to scan & receive calls while in PA
mode. Pressing PTT activates PA, and will override an in-
coming call at anytime; however, no RADIO transmission
takes place.
If this key is pressed again, a confirmation tone will
sound, the display will return to the normal group or SCAN
display, and the PA function will turn off.
• Redial
If you press this key when the system/group is displayed,
the last transmitted DTMF code will appear on the display.
Pressing the PTT switch at this time will transmit the dis-
played DTMF code.
• Scan
Press this key starts scanning. Pressing this key stops
scanning.
• Scan Del/Add
Used to select whether system scan routines are used
during system scan. Each pressing of the key (to ON)
toggles between lockout and lock. The scan routine is
started when on lock. The DEL indicator flashes when the
system is on lockout.
