Controls And Functions; Transceiver Operation - Kenwood TKR-740 Instruction Manual

CONTROLS AND FUNCTIONS

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Front Panel
q q q q q Speaker
w w w w w REF (reference) indicator
Lights red when using an external reference
frequency. Lights green when using the internal
reference frequency.
e e e e e BUSY indicator
Lights green while a signal is being received.
r r r r r TX (transmit) indicator
Lights red while transmitting.
t t t t t POWER indicator
Lights green when power is applied.
y y y y y Display
Two, 7-segment digits display the channel number
or status.
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Rear Panel
q q q q q w w w w w e e e e e
q q q q q RX IN jack
Connect a RX antenna or a duplexer to this BNC
receptacle.
w w w w w TEST/SPKR jack
Test input/output jack. Connect an external
speaker to this jack.
e e e e e REMT I/O jack
Connect an external remote controller to this jack.
r r r r r CONTROL I/O jack
Connect an external programming device or
repeater controller to this DB-25 interface.
REPEATER OPERATION
Note: Please consult your dealer for programming the repeater.
When power is applied to the unit, the POWER indicator
lights green.
Turn the VOLUME control clockwise until a click sounds,
to unmute the volume. Rotate to adjust the volume. Turn
the VOLUME control counterclockwise fully to mute the
volume.
The BUSY indicator lights green while receiving a signal,
and the TX indicator lights red while transmitting.
q q q q q
r r r r r t t t t t y y y y y
w w w w w e e e e e r r r r r t t t t t
u u u u u Programmable Function keys
Press these keys to activate their programmable
functions.
i i i i i TEST switch
Press to transmit an unmodulated signal with no
local microphone connected. If an external
modulation signal source is connected to the
CONTROL I/O jack, the RF signal is modulated
with this signal source.
o o o o o VOLUME control
Turn clockwise until a click sounds, to unmute the
volume. Rotate to adjust the volume. Turn
counterclockwise fully to mute the volume.
!0 !0 !0 !0 !0 MICROPHONE jack
Connect a microphone to this 8-pin modular jack.
u u u u u i i i i i
t t t t t EXT REF IN jack
Connect an external reference oscillator (10 MHz,
-10 dBm or higher) to this BNC receptacle.
y y y y y DC 13.8V jack
Connect a 13.8 V DC power supply to this jack.
u u u u u FUSE
Insert a 4 A blade fuse into this fuse holder.
i i i i i TX OUT jack
Connect a TX antenna or a duplexer to this BNC
receptacle.

TRANSCEIVER OPERATION

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Receive
Adjust the volume to your desired level. You may
need to readjust the volume when you receive a
message from your dispatcher or another member in
your fleet.
• The BUSY indicator lights while a signal is being
received.
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Transmit
1 Listen to the channel before transmitting, to make
sure it is not being used.
2 Press the microphone PTT switch and speak in
your normal speaking voice.
•
•
3 When you finish speaking, release the PTT switch.
y y y y y u u u u u i i i i i
FCC regulations require that you identify the
station you are calling as well as your own
station (your assigned call sign).
The TX indicator lights while transmitting.
o o o o o !0 !0 !0 !0 !0