Controls And Functions; Repeater Operation; Transceiver Operation - Kenwood Nexedge NXR-900 Instruction Manual

CONTROLS AND FUNCTIONS

■
Front Panel
q Speaker
w CH/STATUS Display
Two 17-segment digits display the channel number, name,
or status.
e
STATUS indicator
Indicates the status of the repeater. (NXDN mode)
r
Programmable Function keys
Press these keys to activate their programmable
functions.
t COM jack
Connect to the PC using a RS-232C standard DB9
(Female) cross cable.
y VOLUME control
Turn clockwise until a click sounds, to unmute the audio.
Rotate to adjust the audio. Turn counterclockwise fully to
mute the audio.
u MICROPHONE jack
Connect a microphone to this 8-pin modular jack.
i
POWER indicator
Lights green when power is supplied to the DC 13.8V
jack. Blinks red when an abnormal voltage is present.
■
Rear Panel
q
w
TEST/SPKR
RX
q RX IN jack
Connect an RX antenna or a duplexer to this BNC
receptacle.
w TEST/SPKR jack
Test input/output jack. Connect an external speaker to
this jack.
e CONTROL I/O jack
Connect a repeater controller or a remote panel to this
DB-25 interface.
r SYNC 1 / 2 jack
Connect to another repeater to use synchronous frame
signaling for digital trunking.
t LAN jack
Connect to Ethernet.

REPEATER OPERATION

Note: Please consult your dealer for programming the repeater.
Due to the frequency stability on the 6.25 kHz bandwidth channel,
when operating the repeater using an optional OCXO unit, allow
the unit to warm up after turning the power on. Refer to the KXK-3
instruction manual concerning the warm up duration.
After turning on the power, wait for approximately 10 seconds for
the VCXO or 5 minutes for the OCXO (when mounting) to warm up.
During this time, the CH/STATUS Display will blink. The keys will
function when they are pressed.
When power is applied to the unit, the POWER indicator lights
green. Turn the VOLUME control clockwise until a click sounds,
to unmute the audio. Rotate to adjust the audio. Turn the
VOLUME control counterclockwise fully to mute the audio.
The BUSY indicator lights green while receiving a signal and the
TX indicator lights red while transmitting.
q w
CTRL
!
e r t
SYNC LAN
CONTROL I/O
1 2
e r
STATUS
1 2 3 4 5 6 7 8
MON TAKE RPT
OVER DISABLE
OCXO BUSY TX POWER
A B C
! !0 o i
2 1
While blinking, the repeater cannot be used.
o
TX indicator
Lights red while transmitting.
!0 BUSY indicator
Lights green while a signal is being received.
!1 OCXO indicator
The OCXO indicator shows the state of the reference
10 MHz oscillator :
Lights Green when using a reference signal from an
optional OCXO unit (KXK-3).
Lights Orange when using a reference signal from another
repeater.
Lights red when no reference signal is available or when
an error occurs.
Does not light when the reference signal is an internal
VCXO signal.
!2 CTRL indicator
The CTRL indicator shows the control channel status
while using Digital trunking :
Lights Green when the repeater is used as control channel.
Blinks Green when using a non-dedicated control channel.
y
u i
FUSE
REF OUT REF IN
y REF OUT jack
Connect to another repeater within the site to supply a
reference signal.
u REF IN jack
Connect from another repeater within the site to receive a
reference signal.
i FUSE
Insert 7.5 A blade fuse into this fuse holder.
o DC 13.8V jack
Connect a 13.8 V DC power supply to this jack.
!0 TX OUT jack
Connect a TX antenna or a duplexer to this BNC receptacle.

TRANSCEIVER OPERATION

■
Receive
Adjust the volume to your desired level. You may need to
readjust the volume if you are having interference while receiving
a message from your dispatcher or another member in your fleet.
The BUSY indicator lights green while a signal is being received.
■
Transmit
1 Listen to the channel before transmitting, to make sure it
is not being used.
2 Press the microphone PTT switch, then speak in your
normal speaking voice.
The TX indicator lights red while transmitting.
3 When you finish speaking, release the PTT switch.
C
t y u
VOLUME
MICROPHONE
COM OFF/
o
!0
DC 13.8V
TX