Download TK-280 - K9ROD

TK-280
OPERATING FEATURES
1. Operation Features
The TK-280 is an VHF FM radio designed to operate in
both trunking format and conventional format. The
programmable features are summarized.
Model
Trunking Format
Conventional Format
Trunking mode
Conventional mode
■ Trunking Format
This format can handle up to 32 systems with up to 250
groups in each system. The transceiver can be used in both
trunked mode and conventional mode. Systems, groups,
and their functions are programmed.
■ Conventional Format
This format can handle up to 250 groups with 250 channels
in each group.
The transceiver can be used only in conventional mode.
Groups, channels, and their functions are programmed.
2. Transceiver Controls and Indicators
2-1. Physical Layout
●
lowest system number (or group number).
System numbers (or group numbers) not set are skipped.
Caution : The FPU (KPG-49D) allows selecting between
system selector and group selector.
Conventional Format
Turning the group (or channel) selector knob clockwise
increases the group (or channel) number by one. Turning
the knob in the counterclockwise direction decreases the
group (or channel) number by one.
After the group number (or channel number) reaches the
highest group number (or channel number), it goes back to
lowest group number (or channel number).
Group numbers (or channel numbers) not set are skipped.
Caution : The FPU (KPG-49D) allows selecting between
group selector and channel selector.
3 Volume/Power switch
● Trunking Format
Transceiver Power and Volume switch. Turn clockwise to
switch On the transceiver. Turn counterclockwise fully to
switch OFF the transceiver. Also adjusts the volume level.
When the power is switched off, all the parameters, such
as the system and group, are stored in memory. When the
power is switched on again, the system returns to the
previous conditions.
● Conventional Format
Transceiver Power and Volume switch. Turn clockwise to
switch On the transceiver. Turn counterclockwise fully to
switch OFF the transceiver. Also adjusts the volume level.
When the power is switched off, all the parameters, such
as the group and channel, are stored in memory. When the
power is switched on again, the group returns to the previous
conditions.
4 Auxiliary (orange) key (Programmable)
Note: The transceiver is also available without the DTMF
keypad (-).
5 Battery pack release catch
Push down to release the battery pack. See Installing the
Ni-Cd Battery Pack.
2-2. Panel controls
6 MONITOR key* (Programmable)
The key on the top and front panel is momentary-type push
buttons. The functions of these keys and knob are explained
below.
7 PTT (Push-To-Talk) key
Press this key, then speak into the microphone to call a
station.
1 Antenna connector
Connect the supplied antenna here.
2 System or Group selector knob (Programmable)
●
Trunking Format
Turning the system (or group) selector knob clockwise
increases the system (or group) number by one. Turning
the knob in the counterclockwise direction decreases the
system (or group) number by one.
After the system number (or group number) reaches the
highest system number (or group number), it goes back to
8 LAMP key* (Programmable)
9 TX/BATT indicator
This red LED lights during transmission (it does not light
during busy or when transmit is prohibited). If the battery
voltage falls below the programmed voltage during
transmission, the brightness of this indicator decreases at
intervals of about one second, so it can be used as the
battery voltage alert function.
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