NX-348 - Walkie-talkie KENWOOD - Free user manual and instructions

Product Type	Two-Way Radio (Walkie-Talkie)
Brand	Kenwood
Model	NX-348
Frequency Range	UHF: 400-470 MHz
Number of Channels	128
Output Power	5 Watts (High) / 1 Watt (Low)
Power Source	Rechargeable Li-ion Battery (7.4V, 1800 mAh)
Battery Life	Up to 16 hours (typical duty cycle)
Dimensions (H x W x D)	130 x 60 x 35 mm
Weight (with battery)	Approx. 330 g
Operating Temperature	-30°C to +60°C
IP Rating	IP54 (dust and splash resistant)
Key Features	Analog and Digital modes (NXDN), Emergency button, Voice recording, GPS optional
Display	2-line 14-character LCD with backlight
Charging Method	Drop-in charger or USB adapter (sold separately)
Accessories Included	Antenna, Battery, Belt clip, AC charger
Maintenance	Clean with dry cloth; avoid water immersion; check antenna and seals regularly
Safety	FCC and IC certified; complies with RF exposure guidelines
Spare Parts Availability	Batteries, antennas, chargers, belt clips available via Kenwood authorized dealers
Repairability	Serviceable by authorized technicians; modular design
Warranty	2 years (standard Kenwood warranty)

Frequently Asked Questions - NX-348 KENWOOD

How do I program channels on the Kenwood NX-348?

Use the KPG-D149N programming software and a compatible USB cable. Key software settings include frequency, CTCSS/DCS codes, and power levels. Refer to the user manual for detailed steps.

What type of battery does the NX-348 use?

It uses a Li-ion 7.4V 1800mAh battery pack (specifically KNB-68L or similar). The battery is rechargeable and provides up to 16 hours of operation on a typical cycle.

How can I extend the battery life?

Reduce transmit power to low, avoid excessive keying, and turn off the backlight. Also, fully discharge and recharge the battery every few months to maintain capacity.

Is the Kenwood NX-348 waterproof?

It is rated IP54, meaning it is dust-protected and splash-resistant. It is not designed for submersion. Avoid heavy rain or water exposure.

What is the typical range of the NX-348?

Range depends on terrain: up to 5 kilometers in open areas with line of sight. Urban environments with buildings reduce range to about 1-2 km.

Can I listen to FM radio on the NX-348?

No, the NX-348 is a professional two-way radio without FM broadcast receive capability. It is designed for voice communication only.

How do I update the firmware on my NX-348?

Firmware updates require a KPG-D149N programmer and specific firmware files from Kenwood. Connect the radio via USB and use the update utility in the software.

What accessories are compatible with the NX-348?

Common accessories include earpieces, speaker microphones, remote speakers, and replacement antennas. All accessories with the Kenwood two-pin connector (e.g., KMC-45) are compatible.

How do I clean and maintain my NX-348?

Wipe the exterior with a dry cloth. Do not use solvents. Remove the battery and antenna if needed. Keep the charging contacts clean.

What should I do if the radio doesn't turn on?

First, check the battery connection and charge the battery. If still no power, try a known good battery. If it fails, contact Kenwood service.

USER MANUAL NX-348 KENWOOD

NEXEDGE

VHF DIGITAL TRANSCEIVER

NX-248

UHF DIGITAL TRANSCEIVER

NX-348

JVCKENWOOD Corporation

© B5A-0068-10 (C)

THANK YOU

We are grateful you have chosen KENWOOD for your land mobile radio applications.

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 qualified technicians only.

Safety: It is important that the operator is aware of, and understands, hazards common to the operation of any transceiver.

The AMBE+2 ^TM 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. #5,826,222, #5,754,974, #5,701,390, and #5,715,365.

Firmware Copyrights

The title to and ownership of copyrights for firmware embedded in KENWOOD product memories are reserved for JVC KENWOOD Corporation.

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.
• Do not use options not specified by KENWOOD.
• If the die-cast chassis or other transceiver part is damaged, do not touch the damaged parts.
• If a headset or headphone is connected to the transceiver, reduce the transceiver volume. Pay attention to the volume level when turning the squelch off.
• 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.
• Do not immerse the transceiver in water.
• 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.

WARNING

Turn the transceiver power off in the following locations:

• In explosive atmospheres (infl ammable gas, dust particles, metallic powders, grain powders, etc.).
• While taking on fuel or while parked at gasoline service stations.
• Near explosives or blasting sites.
• In aircraft. (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 using pacemakers.

CAUTION

• 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 inflates, 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 traffic laws. Please check and observe the vehicle regulations in your area.
• Do not expose the transceiver to extremely hot or cold conditions.
• Do not carry the battery pack (or battery case) with metal objects, as they may short the battery terminals.
• When attaching a commercial strap to the transceiver, ensure that the strap is durable. In addition, do not swing the transceiver round by the strap; you may inadvertently strike and injure another person with the transceiver.
• If a commercially available neck strap is used, take care not to let the strap get caught on nearby machine.
• When operating the transceiver in areas where the air is dry, it is easy to build up an electric charge (static electricity). When using an earphone accessory in such conditions, it is possible for the transceiver to send an electric shock through the earphone and to your ear. We recommend you use only a speaker/microphone in these conditions, to avoid electric shocks.
• To dispose of batteries, be sure to comply with the laws and regulations in your country or region.

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.

DANGER

- 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 flame.

- 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, chain-necklaces or hairpins). If the battery pack is short-circuited, excessive current will flow and the battery may generate heat or smoke, rupture, or burst into flame. 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 flame.

- Do not leave the battery near fi re, 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 flame.

- Do not immerse the battery in water or get it wet by other means!

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 flame.

- Do not charge the battery near fi re 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 flame.

DANGER

- Use only the specified charger and observe charging requirements!

If the battery is charged in unspecified conditions (under high temperature over the regulated value, excessive high voltage or current over regulated value, or with a remodeled charger), it may overcharge or an abnormal chemical reaction may occur. The battery may generate heat or smoke, rupture, or burst into flame.

- 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 flame.

- 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. The battery may generate heat or smoke, rupture, or burst into fl ame.

- Do not use the battery pack if it is damaged in any way!

The battery may generate heat or smoke, rupture, or burst into flame.

- 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 flame.

- 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 flow upon discharging. The battery may generate heat or smoke, rupture, or burst into flame.

- 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 flame.

DANGER

- Do not touch a ruptured and leaking battery!

If the electrolyte liquid from the battery gets into your eyes, wash your eyes with fresh water as soon as possible, without rubbing your eyes. Go to the hospital immediately. If left untreated, it may cause eye-problems.

WARNING

- Do not charge the battery for longer than the specified 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 flame.

- 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 flame.

CONTENTS

UNPACKING AND CHECKING EQUIPMENT .... 1

PREPARATION 2

ORIENTATION....7

PROGRAMMABLE AUXILIARY FUNCTIONS .... 8

BASIC OPERATIONS ...... 11

VOICE OPERATED TRANSMISSION (VOX) 13

NXDN 15

BACKGROUND OPERATIONS ....16

UNPACKING AND CHECKING EQUIPMENT

Carefully unpack the transceiver. If any of the items listed below are missing or damaged, fi le a claim with the carrier immediately.

SUPPLIED ACCESSORIES

• Antenna (Supplied with NX-348) ....1
• Cap....1
• Locking bracket....1
• Belt clip (KBH-10) ....1
• Screw (M3 x 8 mm) .... 2
• Channel stopper ....1
• Instruction manual ....1

Note:

◆ Refer to “PREPARATION” {p. 2} for accessory installation instructions.

PREPARATION

INSTALLING THE CHANNEL STOPPER

You can set the channel stopper position for channels 2, 4, 6, 8, 10, 12, and 14. Inserting the Channel stopper prevents unnecessarily selecting channels which do not exist.

• Selecting a channel which does not exist causes a continuous error tone to sound.
  1 Set the Channel selector to channel 1, then pull the Channel selector knob off the transceiver.
• If the Channel selector is not positioned at channel 1, the knob may not install correctly and the channel may be unable to change.
  2 Insert the channel stopper.
  3 Set the arrow of the Channel stopper to the highest channel number for the transceiver.
  4 Reinsert the Channel selector knob.

INSTALLING THE ANTENNA

Antenna

Line drawing of a sewing machine with a needle inserted, showing no text or symbols on the device itself.

Screw the antenna into the connector on the top of the transceiver by holding the antenna at its base and turning it clockwise until secure.

Note:

◆The antenna is neither a handle, a key ring retainer, nor a speaker/ microphone attachment point. Using the antenna in these ways may damage the antenna and degrade your transceiver's performance.

INSTALLING/ REMOVING THE BATTERY PACK

CAUTION

◆ Do not short the battery terminals or dispose of the battery by fire.
◆ Never attempt to remove the casing from the battery pack.

1 Align the battery pack with the back of the transceiver, then press the battery pack and transceiver firmly together until the release latch on the base of the transceiver locks.
2 To remove the battery pack, lift the safety catch on the base of the transceiver, then press the release latch underneath the safety catch.
3 While pressing the release latch, pull the battery pack away from the transceiver.

INSTALLING THE BELT CLIP

If necessary, attach the belt clip using the two supplied M3 x 8 mm screws.

Note:

◆If the belt clip is not installed, its mounting location may get hot during continuous transmission or when left sitting in a hot environment.

CAUTION

Do not use glue which is designed to prevent screw loosening when installing the belt clip, as it may cause damage to the transceiver. Acrylic ester, which is contained in these glues, may crack the transceiver's back panel.

CHARGING THE BATTERY PACK (OPTIONAL BATTERY CHARGER)

The battery pack is not charged at the factory; charge it before use.

ATTENTION:

◆Always switch OFF a transceiver equipped with a battery pack before inserting the transceiver into the charger.

1 Plug the AC adapter cable into the jack located on the rear of the charger.
2 Plug the AC adapter into an AC outlet.
3 Match the Holder to the type of battery pack to be charged so that when inserting the Holder, the battery type name can be seen on the bottom of the charger. After inserting the Holder into the charger, press the locking tabs to secure it in place.

- To remove the Holder, squeeze the locking tabs together then pull the Holder out of the charger.

4 Slide a battery pack or a transceiver equipped with a battery pack into the charging slot of the charger.

• Make sure the metal contacts of the battery pack mate securely with the charger terminals.
• The indicator lights red and charging begins.

5 When charging is completed, the indicator lights green. Remove the battery pack or the transceiver from the charging slot of the charger.

• It takes approximately 3 hours to charge the battery pack.
• When the charger will not be used for a long time, unplug the AC adapter from the AC outlet.

Note:

• When the indicator blinks red, the battery pack is either defective or the battery pack contacts are not properly mated with those of the charger.
  When the indicator fl ashes green and orange, the battery pack has not satisfied the charging start temperature. Remove the battery pack from the charger and wait until it reaches a normal temperature before charging it again.
  ◆ The ambient temperature should be between 5°C and 40°C while charging is in progress. Charging outside this range may not fully charge the battery.
  ◆ The battery pack life is over when its operating time decreases even though it is fully and correctly charged. Replace the battery pack.

Install the cap over the speaker/ microphone jacks when not using an optional speaker/ microphone.

Note:

◆To keep the transceiver water resistant, you must cover the speaker/ microphone jacks with the supplied cap.

Diagram of a mechanical assembly with concentric circular components and a separate circular component (no text or symbols)

1 Place the cap over the jacks so that the locking tabs insert into the transceiver grooves.

Pure mechanical diagram showing a rotating shaft and rope with directional arrows, no text or symbols present.

2 While holding the cap in place, push it towards the bottom of the transceiver until the tabs on the cap click into place.

- To remove the cap, hold the top of the cap in place with your finger while inserting a 2 mm or smaller fl at blade screwdriver under the bottom of the cap. Slowly slide the screwdriver in until its tip touches the tab inside the cap, then gently pry the cap up (handle of screwdriver moving away from the transceiver) to remove the cap.

INSTALLING THE OPTIONAL SPEAKER/ MICROPHONE (OR HEADSET)

Note:

◆The transceiver is not fully water resistant when using a speaker/microphone or headset.

Diagram of a car tire assembly with a tool inserted, showing mechanical components and a directional arrow (no text or labels)

1 Insert the speaker/ microphone (or headset) plugs into the speaker/ microphone jacks of the transceiver.

Diagram of a mechanical assembly with directional arrows indicating motion (no text or symbols)

Hand holding a cable with a black arrow pointing to the cable end (no text or symbols)

2 Place the locking bracket over the speaker/ microphone (or headset) plugs so that the locking tabs insert into the transceiver grooves.

- Push down on the locking bracket to slide it into place.

3 While holding the locking bracket in place, push it towards the bottom of the transceiver until the tabs on the bracket click into place.

- To remove the locking bracket, push the bracket up from the base.

Pure mechanical diagram showing a valve or connector with directional arrows, no text or symbols present

ORIENTATION

① Channel selector

Rotate to change the operating channel.

② LED indicator

Refer to the LED indicator status. {p. 13}

③ Power switch/ Volume control

Turn clockwise to switch ON the transceiver. To switch OFF the transceiver, turn counterclockwise until a click sounds. Rotate to adjust the volume level.

④ PTT (Push to Talk) switch

Press and hold, then speak into the microphone to transmit.

⑤ Side 1 key

Press to activate its programmable function. {page 8}

⑥ Side 2 key

Press to activate its programmable function. {page 8}

⑦ Speaker/ microphone jacks

Insert the Speaker/ microphone or Headset plug into this jack. {page 6}

PROGRAMMABLE AUXILIARY FUNCTIONS

Your dealer can program the Side 1 and Side 2 keys each with one of the functions listed below.

Note:

◆The duration of pressing a key to activate a function is dependent on your dealer setting. Your dealer may have set some keys to be held down for a short duration instead of being momentarily pressed. Ask your dealer for details on which keys need to be held down to activate their functions.

None

No function has been programmed.

■ Autodial ¹

Autodial allows you to make a private DTMF call to another party.

Call 1/ Call 2

Press to send a FleetSync status, NXDN status, NXDN individual, 2-tone signaling call.

- Calling Alert ¹

A calling alert tone allows you to alert party members that you are making a call. When making a call, first hold down this key.

- While holding down the key, the calling alert tone will sound. Release the key to end the tone, then hold down the PTT switch and speak into the microphone to transmit.

■ CW Message ²

Press to transmit the preset Morse code message on your current channel.

Emergency

Press and hold to enter (or exit) Emergency mode.

■ Key Lock

Press to lock/unlock the transceiver keys. Without Status Memory, when the transceiver power is turned OFF and then ON again, the Key Lock function will be canceled.

■ Key Lock with Status Memory

This operates the same as Key Lock except that when the transceiver power is turned OFF and then ON again, the keys remains locked.

Lone Worker

Lone Worker Mode is a safety feature built into the transceiver. If the transceiver is not operated for a pre-programmed period of time, the transceiver will emit a tone and automatically enter Emergency operation. Press this key to toggle the Lone Worker function ON or OFF.

■ Low Transmit Power

Each channel is programmed with either high or low transmit power. On high transmit power channels, press this key to change the transmit power to low power (you cannot change low transmit power channels to use high power).

Monitor

Press to deactivate signaling (QT/DQT, FleetSync signaling, NXDN, etc.). Press this key again to return to normal operation.

■ Monitor Momentary

Continuously hold down this key to deactivate signaling (QT/DQT, FleetSync signaling, NXDN, etc.). Release this key to return to normal operation.

■ Paging Call

Press to send a FleetSync or NXDN paging call to an ID from the ID list.

■ Priority Zone-Channel Select

If the scan priority type is “Operator Selectable”, press this key in normal mode to set the current channel as the Priority channel.

Scan

Press to start (or stop) scanning the transceiver channels.

■ Scan Temporary Delete

When scan pauses at an undesired channel, you can remove that channel from the scanning sequence by pressing or holding this key.

■ Scrambler/Encryption

The Scrambler (analog) and Encryption (NXDN) function allows you to hold a conversation in complete privacy. When activated, any other party listening in on your channel will be unable to understand your conversation. Press this key to toggle the Scrambler/Encryption function ON or OFF.

■ Send the GPS data

With the KMC-48GPS unit is connected, you can press this key to send your positioning data to the base station.

■ Squelch Off

Press to hear background noise. Press this key again to return to normal operation.

■ Squelch Off Momentary ¹

Continuously hold down this key to hear background noise. Release this key to return to normal operation.

■ Talk Around

The Talk Around function allows you to communicate directly with other transceivers, without the use of a repeater. Press this key to toggle the Talk Around function ON or OFF.

■ Zone Down

Press to select the previous zone.

■ Zone Up

Press to select the next zone.

1 Available only for Analog operation.
2 Available only for NXDN operation.

SWITCHING POWER ON/OFF

Turn the Power switch/ Volume control clockwise to switch the transceiver ON.

Turn the Power switch/ Volume control counterclockwise fully to switch the transceiver OFF.

■ Transceiver Password

If your transceiver is password protected, the LED will light blue when you turn the transceiver ON. Enter the password (up to 4 digits) using the following procedure.

1 Set the Channel selector to position "1".
2 Press the Side 1 or Side 2 key to enter the first digit.

- The Side 1 key increases the digit value and the Side 2 key decreases it. The transceiver announces the digit number as it changes.

3 Repeat step 2 for Channel selector positions 2 \~ 4.

- If there are less than 4 password digits, repeat for only the number of digits the password contains.

4 Press the PTT switch to confirm the password.

• When the correct password is entered, the Blue LED turns off.
• If you enter an incorrect password, an error tone sounds and the transceiver remains locked.

ADJUSTING THE VOLUME

Rotate the Power switch/ Volume control to adjust the volume. Clockwise increases the volume and counterclockwise decreases it.

SELECTING A ZONE AND CHANNEL

1 Select the desired zone using the key programmed as [Zone Up] or [Zone Down].
• Each zone contains a group of channels.
2 Select the desired channel using the Channel selector.
• Each channel is programmed with settings for transmitting and receiving.

TRANSMITTING

1 Select the desired zone and channel.
2 Press the key programmed as [Monitor] or [Squelch Off] to check whether or not the channel is free.

- If the channel is busy, wait until it becomes free.

3 Press the PTT switch and speak into the microphone. Release the PTT switch to receive.

- For best sound quality, hold the transceiver approximately 1.5 inches (3 \~ 4 cm) from your mouth.

RECEIVING

Select the desired zone and channel. If signaling has been programmed on the selected channel, you will hear a call only if the received signal matches your transceiver settings.

Note:

◆Signaling allows your transceiver to code your calls. This will prevent you from listening to unwanted calls. Refer to “SIGNALING” {p. 17}.

LED INDICATOR STATUS

Indicator Color Meaning
Flashes blue Digital mode
Flashes orange Analog mode
Lights red Transmitting
Lights green Receiving a call
Blinks red Battery power is low while transmitting
Blinks green Scanning & site roaming
Blinks orange or blue *	Receiving an encoded call (FleetSync signaling, etc.)
Blinks red/orange	The selected channel has not been programmed and cannot be used.

* Your dealer can set the LED to blink either orange or blue for FleetSync, DTMF, 2-tone, or NXDN operation.

VOICE OPERATED TRANSMISSION (VOX)

VOX operation allows you to transmit hands-free. This feature must first be activated by your dealer, and can only be used if you are using a supported headset. VOX can be turned off for specific channels by your dealer. To activate VOX and set the VOX Gain level, perform the following steps:

1 Connect a headset to the transceiver.

- The VOX function does not activate when a headset is not connected to the accessory terminal of the transceiver.

2 With the transceiver power OFF, press and hold the Side 1 key while turning the transceiver power ON.

3 Continue to hold the Side 1 key until a beep sounds.

• The LED indicator lights orange.
• When the Side 1 key is released, the transceiver will announce the VOX Gain level.

4 Press the Side 1 key to set the VOX Gain level, from OFF, 1 (least sensitive) to 10 (most sensitive).

• Press the Side 2 key to enable or disable the VOX function for the current channel (you can change this setting for each channel by selecting a channel with the Channel selector). When turned ON, a beep sounds. When turned OFF, a double beep sounds.
• When the sector points to empty channel, pressing Side 2 key will cause the error tone to sound.

5 Press the PTT switch to save the setting.

• A beep will sound.
• The transceiver announces the new VOX Gain level.

6 Turn the transceiver power OFF and then ON again to activate VOX.
7 If transceiver password mode is set, the user need to key in the correct password before entering the VOX setup mode.

Note:

◆ If key lock with status memory is ON, you will be unable to enter VOX setup mode.
If a headset is connected to the transceiver while the VOX function is switched ON and the VOX Gain level is configured to a higher, more sensitive level, louder received signals may cause the transceiver to start transmitting.
◆ If no operation is performed for 20 seconds, the transceiver will exit VOX setup mode.

NXDN

NXDN is a general term for the NXDN wireless communication protocol which uses 4 Level FSK. Various data communications, including individual and group voice communications, Status calls, and GPS data transmission, are possible.

INDIVIDUAL/GROUP CALLS

Each channel is set up with an individual or group ID list number. To make a call, select the channel with the ID list number you wish to call, then press the PTT switch to start the call.

• Your dealer may also have set Selcall on PTT for Individual or Group calls, allowing you to make an Individual or Group call when pressing the PTT switch.
• To page the target transceiver instead of initiating a voice call, press the key programmed as [Paging Call].
• If PTT Proceed tone is enabled, the Proceed tone will sound. After the tone ends, you can begin the call.

■ Receiving

When you receive an individual call, a ringing tone will sound. Respond to the call by pressing the PTT switch.

- If the auto reset timer expires before you respond to the call, the call will end. Your dealer can set the duration for the auto reset timer (default is 10 seconds).

When you receive a group call and the received group ID matches the ID set up on your transceiver, a ringing tone will sound and you can hear the caller's voice.

STATUS CALL

You can transmit your status (preset by your dealer) to the target transceiver by pressing the key programmed as [Call 1] or [Call 2], if they have been set up with an NXDN Status.

- Channels are set up with ID list numbers by your dealer. Select the desired channel before sending the status call.

The Time-out Timer prevents callers from using a channel for an extended duration. If you continuously transmit for the duration programmed by your dealer (default is 1 minute), transmission will stop and a warning tone will sound. To stop the tone, release the PTT switch.

BATTERY SAVER

When activated by your dealer, the Battery Saver function decreases the amount of power used after no signal is present and no operations are being performed for 5 seconds. When a signal is received or an operation is performed, Battery Saver turns off.

Note:

◆While the Battery Saver is operating, the LED may fl ash green when receiving a QT/DQT signal which does not match the QT/DQT tone/code set up in your transceiver.

LOW BATTERY WARNING

While operating the transceiver, the Low Battery Warning sounds until the PTT switch is released and the LED indicator blinks red when the battery needs recharged or replaced.

BUSY CHANNEL LOCKOUT (BCL)

When activated, BCL prevents you from interfering on a channel that is already in use. Pressing the PTT switch will cause an alert tone to sound and the transceiver will not transmit. Release the PTT switch to stop the tone.

Note:

◆Ask your dealer for an explanation on how BCL functions when using QT, DQT, RAN, or Optional signaling.

If BCL Override has been programmed, you can transmit over the current signal:

1 Press and hold the PTT switch.
- If the channel is already in use, a warning tone will sound.
2 Quickly release and then press the PTT switch again.
3 Speak into the transceiver as you would during a normal call.

PTT ID

PTT ID is the transceiver unique ID code which is sent each time the PTT switch is pressed and/or released.

Note:

◆PTT ID can be made only in analog operation.

SIGNALING

QT/ DQT

The Encoder/Decoder function uses QT/ DQT to segregate talk groups, so users only hear calls from their own group.

■ Radio Access Number (RAN)

RAN is a signaling system designed for digital radio communications. When a channel is set up with a RAN, squelch will only open when a call containing a matching RAN is received. If a call containing a different RAN is made on the channel you are using, you will not hear the call. This allows you to ignore (not hear) calls from other parties who are using the same channel.

NXDN ID

NXDN ID is an optional signaling system available only for digital communications.

DTMF

A DTMF PTT ID is included for dispatch operations or simple remote control applications. The DTMF decode capabilities include Selective Call ID, Transpond with ID, and “Wild Card” Group Calling.

2-Tone

2-tone Signaling opens the squelch only when your transceiver receives a call containing matching 2 tones.

FleetSync

Utilizing JVC KENWOOD's FleetSync digital signaling protocol, this transceiver has PTT ID and Selective Calling capabilities for managed dispatch operations. For hazardous/hostile duty environments, the Side1 or Side 2 key can be programmed for Emergency status to alert the dispatcher and/or operator in distress.

MDC-1200

The following features are available with the built-in MDC signaling: PTT ID Encode, Emergency Encode, Stun/Revive Decode, and Radio Check Decode.

Note:

◆The transceiver cannot decode MDC-1200 when the respective channel incorporate any FleetSync properties. (example: PTT-ID, Optional signaling).

COMPANDER

If programmed by your dealer for a channel, the commander will remove excessive noise from transmitted signals, to provide higher clarity of signals.

Note:

◆The compander is used only in analog operation.

VOICE ANNUNCIATION

If enabled by your dealer, when changing the zone and channel, an audio voice will announce the new zone and channel number.

使用说明书

NEXEDGE

VHF 数字模拟双模手持对讲机

NX-248

UHF 数字模拟双模手持对讲机

NX-348

使用之前请阅读以下信息：

Line drawing of a sewing machine with three rotary knobs and a base labeled 'KENWOOD' (no additional text or symbols)

Diagram showing two mechanical or electrical components with arrows indicating motion or force direction (no text or symbols)

Diagram of a car tire assembly with a tool inserted, showing mechanical components and a directional arrow (no text or labels)

Technical line drawing of a mechanical assembly with no visible text or symbols

Hand holding a mechanical component with a black arrow indicating force direction (no text or symbols)

Diagram of a mechanical or electrical component with directional arrows indicating movement (no text or symbols)