We are grateful you have chosen KENWOOD for your land
mobile radio applications.
This instruction manual covers only the basic operations of your
NEXEDGE portable radio. Ask your dealer for information on any
customized features they may have added to your radio.
The AMBE+2TM voice coding Technology embodied in this product is
protected by intellectual property rights including patent rights, copyrights
and trade secrets of Digital Voice Systems, Inc. This voice coding
Technology is licensed solely for use within this Communications Equipment.
The user of this Technology is explicitly prohibited from attempting to extract,
remove, decompile, reverse engineer, or disassemble the Object Code,
or in any other way convert the Object Code into a human-readable form.
U.S. Patent Nos. #6,199,037, #6,912,495, #8,200,497, #7,970,606 and
#8,359,197
Firmware Copyrights
The title to and ownership of copyrights for fi rmware embedded in
KENWOOD product memories are reserved for JVC KENWOOD
Corporation.
NOTICES TO THE USER
◆ Government law prohibits the operation of unlicensed radio
transmitters within the territories under government control.
◆ Illegal operation is punishable by fi ne and/or imprisonment.
◆ Refer service to qualifi ed technicians only.
SAFETY: It is important that the operator is aware of and
understands hazards common to the operation of any
transceiver.
The RBRC Recycle seal found on KENWOOD
nickel metal hydride (Ni-MH) battery packs indicates
KENWOOD’s voluntary participation in an industry
program to collect and recycle Ni-MH batteries after
their operating life has expired. The RBRC program
is an alternative to disposing Ni-MH batteries with
your regular refuse or in municipal waste streams,
which is illegal in some areas.
For information on Ni-MH battery recycling in your area, call (toll
free) 1-800-8-BATTERY (1-800-822-8837).
KENWOOD’s involvement in this program is part of our commitment
to preserve our environment and conserve our natural resources.
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One or more of the following statements may be
applicable:
FCC WARNING
This equipment generates or uses radio frequency energy. Changes
or modifi cations to this equipment may cause harmful interference
unless the modifi cations are expressly approved in the instruction
manual. The user could lose the authority to operate this equipment
if an unauthorized change or modifi cation is made.
INFORMATION TO THE DIGITAL DEVICE USER REQUIRED BY
THE FCC
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation.
This equipment generates, uses and can generate radio frequency
energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that the interference will not occur
in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined
by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment to an outlet on a circuit different from
that to which the receiver is connected.
Consult the dealer for technical assistance.
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PRECAUTIONS
• Do not charge the transceiver and battery pack when they are wet.
• Ensure that there are no metallic items located between the
transceiver and the battery pack.
• Use only KENWOOD specifi ed explosion-protected options for the
NX-203 and NX-303 transceivers.
• If the die-cast chassis or other transceiver part is damaged, do not
touch the damaged parts.
• Do not place the microphone cable around your neck while near
machinery that may catch the cable.
• Do not place the transceiver on unstable surfaces.
• Ensure that the end of the antenna does not touch your eyes.
• When the transceiver is used for transmission for many hours, the
radiator and chassis will become hot. Do not touch these locations
when replacing the battery pack.
• Always switch the transceiver power off before installing optional
accessories.
• The charger is the device that disconnects the unit from the AC
mains line. The AC plug should be readily accessible.
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Turn the transceiver power off in the following locations:
• Near explosives or blasting sites.
• In aircrafts. (Any use of the transceiver must follow the
instructions and regulations provided by the airline crew.)
• Where restrictions or warnings are posted regarding the use of
radio devices, including but not limited to medical facilities.
• Near persons wearing pacemakers.
• Do not remove the black sheet from the reverse side of the
transceiver (refer to the illustration below). Removal of this
sheet decreases the waterproof effi ciency of the transceiver and
may cause malfunctions if water seeps into the transceiver.
• The orange seal on the reverse side of the transceiver is
important with respect to the waterproof effi ciency of the
transceiver. Do not place stickers or other materials on or
around the seal shown in the fi gure, or on the reverse side of
the battery pack. Doing so will impair the waterproof effi ciency
of the transceiver and may cause it to break down. Additionally,
in order to prevent damage to the seal, do not allow it to come
in contact with foreign materials.
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• Do not disassemble or modify the transceiver for any reason.
• Do not place the transceiver on or near airbag equipment while
the vehicle is running. When the airbag infl ates, the transceiver
may be ejected and strike the driver or passengers.
• Do not transmit while touching the antenna terminal or if
any metallic parts are exposed from the antenna covering.
Transmitting at such a time may result in a high-frequency burn.
• If an abnormal odor or smoke is detected coming from the
transceiver, switch the transceiver power off immediately,
remove the battery pack from the transceiver, and contact your
KENWOOD dealer.
• Use of the transceiver while you are driving may be against
traffi c laws. Please check and observe the vehicle regulations
in your area.
• Do not expose the transceiver to extremely hot or cold
conditions.
• Do not change or charge the battery pack in a hazardous
location. Charge only in fresh air.
• Danger of explosion if the battery is incorrectly replaced;
replace only with the same type.
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INFORMATION CONCERNING THE BATTERY PACK
The battery pack includes fl ammable objects such as organic solvent.
Mishandling may cause the battery to rupture producing fl ames or
extreme heat, deteriorate, or cause other forms of damage to the
battery. Please observe the following prohibitive matters.
• Do not disassemble or reconstruct battery!
The battery pack has a safety function and protection circuit to
avoid danger. If they suffer serious damage, the battery may
generate heat or smoke, rupture, or burst into fl ame.
• Do not short-circuit the battery!
Do not join the + and – terminals using any form of metal (such
as a paper clip or wire). Do not carry or store the battery pack
in containers holding metal objects (such as wires, chainnecklace or hairpins). If the battery pack is short-circuited,
excessive current will fl ow and the battery may generate heat
or smoke, rupture, or burst into fl ame. It will also cause metal
objects to heat up.
• Do not incinerate or apply heat to the battery!
If the insulator is melted, the gas release vent or safety function
is damaged, or the electrolyte is ignited, the battery may
generate heat or smoke, rupture, or burst into fl ame.
• Do not leave the battery near fi res, stoves, or other heat
generators (areas reaching over 80°C/ 176°F)!
If the polymer separator is melted due to high temperature,
an internal short-circuit may occur in the individual cells and
the battery may generate heat or smoke, rupture, or burst into
fl ame.
• Avoid immersing the battery in water or getting it wet by
other means!
If the battery becomes wet, wipe it off with a dry towel before
use. If the battery’s protection circuit is damaged, the battery
may charge at extreme current (or voltage) and an abnormal
chemical reaction may occur. The battery may generate heat or
smoke, rupture, or burst into fl ame.
vi
• Do not charge the battery near fi res or under direct
sunlight!
If the battery’s protection circuit is damaged, the battery
may charge at extreme current (or voltage) and an abnormal
chemical reaction may occur. The battery may generate heat or
smoke, rupture, or burst into fl ame.
• Use only the specifi ed charger and observe charging
requirements!
If the battery is charged in unspecifi ed conditions (under high
temperature over the regulated value, excessive high voltage or
current over regulated value, or with a remodelled charger), it
may overcharge or an abnormal chemical reaction may occur.
The battery may generate heat or smoke, rupture, or burst into
fl ame.
• Do not pierce the battery with any object, strike it with an
instrument, or step on it!
This may break or deform the battery, causing a short-circuit.
The battery may generate heat or smoke, rupture, or burst into
fl ame.
• Do not jar or throw the battery!An impact may cause the battery to leak, generate heat
or smoke, rupture, and/or burst into fl ame. If the battery’s
protection circuit is damaged, the battery may charge at an
abnormal current (or voltage), and an abnormal chemical
reaction may occur.
• Do not use the battery pack if it is damaged in any way!The battery may generate heat or smoke, rupture, or burst into
fl ame.
• Do not solder directly onto the battery!If the insulator is melted or the gas release vent or safety
function is damaged, the battery may generate heat or smoke,
rupture, or burst into fl ame.
• Do not reverse the battery polarity (and terminals)!When charging a reversed battery, an abnormal chemical
reaction may occur. In some cases, an unexpected large
amount of current may fl ow upon discharging. The battery may
generate heat or smoke, rupture, or burst into fl ame.
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• Do not reverse-charge or reverse-connect the battery!
The battery pack has positive and negative poles. If the battery
pack does not smoothly connect with a charger or operating
equipment, do not force it; check the polarity of the battery. If
the battery pack is reverse-connected to the charger, it will be
reverse-charged and an abnormal chemical reaction may occur.
The battery may generate heat or smoke, rupture, or burst into
fl ame.
• Do not touch a ruptured and leaking battery!
If the electrolyte liquid from the battery gets into your eyes,
wash your eyes out with fresh water as soon as possible,
without rubbing your eyes. Go to the hospital immediately. If
left untreated, it may cause eye-problems.
• Do not charge the battery for longer than the specifi ed
time!
If the battery pack has not fi nished charging even after the
regulated time has passed, stop it. The battery may generate
heat or smoke, rupture, or burst into fl ame.
• Do not place the battery pack into a microwave or high
pressure container!
The battery may generate heat or smoke, rupture, or burst into
fl ame.
• Keep ruptured and leaking battery packs away from fi re!If the battery pack is leaking (or the battery emits a bad odor),
immediately remove it from fl ammable areas. Electrolyte
leaking from battery can easily catch on fi re and may cause the
battery to generate smoke or burst into fl ame.
• Do not use an abnormal battery!If the battery pack emits a bad odor, appears to have different
coloring, is deformed, or seems abnormal for any other reason,
remove it from the charger or operating equipment and do not
use it. The battery may generate heat or smoke, rupture, or
burst into fl ame.
viii
CONTENTS
UNPACKING AND CHECKING EQUIPMENT....................................1