XINWEI NF-781D Two Way Radio Instruction Manual

NF-781D Two Way Radio

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Specifications:

• Intuitive LCD menu-type operation
• Battery: 3.7V 2000mAh
• Frequency range: UHF 400MHz-470MHz, BT 2402MHz-2480MHz
• Channel spacing: 12.5KHz
• TX output power: FM H2WL0.5W, 4FSK: H2WL0.7W
• Channels: 512
• Contacts: 256

Description of Main Functions:

The device features an intuitive LCD menu-type operation, a 3.7V
2000mAh battery, UHF and BT frequency ranges, channel spacing of
12.5KHz, various TX output power levels, 512 channels, and 256
contacts.

Key Operation Instructions:

• PTT key: Press to launch, release after
  launch

• POWER key: Rotate clockwise to start up,
  counterclockwise to shut down

• VOL knob: Clockwise to increase volume,
  counterclockwise to decrease volume

Key Combination Functions:

To restore factory settings, press [Programmable
key1]+[Programmable key2] within 5 seconds of power on. A flashing
green light indicates the process, and a long red light confirms
the reset.

Menu Content:

Frequently Asked Questions (FAQ):

1. How do I change the volume on the device?

To adjust the volume, rotate the VOL knob clockwise to increase
and counterclockwise to decrease the volume.

2. What is the procedure to restore factory settings?

To restore factory settings, press [Programmable
key1]+[Programmable key2] within 5 seconds of powering on the
device.

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CONTENTS

FFfCFC ID: UUPNF-781D

Description of main

functions

……………………………………2

Key operation

instructions

……………………………………3

Key combination

functions

………………………………………4

Menu content ………………………………………5

Menu function descriptions and

settings

………………………………………6

Other function descriptions and

settings

……………………………………11

Troubleshooting ……………………………………13

1

Description of main functions
1. Intuitive LCD menu-type operation 2. Battery 3.7V 2000mAh battery capacity 3. Frequency range UHF400MHz470MHz
Frequency range BT 2402MHz 2480MHz 4. Channel spacing 12.5KHz 5. TX output power FM H2WL0.5W
4FSK: H2WL0.7W 6. Analogue subsonic(CTCSS 38) and digital subsonic (CDCSS 83)
and Reverse digital subsonic(CDCSS Inverse 83) 7. Channels numbers512
8. Contacts : 256 9. TOXOFF3060…..150180S 10. VOXOFF/1/2/3 11. Scanningchannels scan 12. Record The number of recordable strips is determined by
the memory size 13. Color code 0-15
2

14. Basic Encryption 15. Backlight on/off 16. Power saving function 17. Monitoring function 18. Supplementary service 19. Low Battery Clarm 20. Tone 21. Voice AnnouncementCN/CN/KR 22. Squelch tail elimination 23. Scramble 24. Locking key
Key operation instructions
Key operation
PTT key PTT keyPress this switch at launchRelease after launch
3

POWER key Power knobRotate clockwise to hear a “clatter”Start upRotate counterclockwise and hear a “clatter” soundshut down

VOL knob

Volume knob same knob as the on/off

knob Clockwise increase in volumecounter-clockwise

decrease volume

Programmable Short or long press on programmable keys to configure scanning on/off via CPSVOX on/off high/low powermonitoringEmergency AlarmOne-touch call and other functions

Up/down

Switch key for function or channelPress

the up key continuously to increase the channel numberPress

the key continuously to decrease the channel numberPress the

up/down keys to exit the scan during scanning

Menu key

Function setting and selection keySelect

various functions

Exit key

Return to upper level
4

Key combination functions
1.[Programmable key1]+[Programmable key2] Restore factory settings, Turn the switch knobWithin 5S of power onSimultaneously long press [Programmable key1]+[Programmable key2]A flashing green light indicates that the factory settings are being restoredA long red light indicates that the factory has been restoredThen it restarts automatically.

Menu content

menu item

Display and description

01 Contact

Setting content
Select individual call/group call/all call initiate remote
5

02 Scan 03 Zones 04 Bluetooth
05 Record
06 Power setting 07 Tone setting

kill/activation/call alert/intercom check/remote monitoring for individual calls off-open
Switching zones
switch/connect/disconnect /Clear pairing information/Check Bluetooth status Recording switch /Play the recording file /Delete single or all recordings Low power /high power
off-on

08 VOX

off-on/Gain level

09 Power-saving setting Off/level 1 /level 2/level 3

10 TOT

off/30s/60s/90s/120s/150s /180s

11 Brightness

Level 1/level 2/level 3

12 Backlight

Long bright/5s/10s/15s/30s/45s/

6

13 Language

60s/120s/180s/240s/300s Chinese/English/Korean

Menu function descriptions and settings
1. Contact Choose [MENU][CONTACT]Enter the contacts screenSelect target contactlong press [PTT key] Initiate a callThe indicator keeps on red release [PTT key ]Stop Call Enter call hold timeLong bright orange lightPress and hold again [PTT key]Launch another call to the contact. If you long press on the main screen [PTT key ]then the call is initiated to the default contact.
2. Remote kill Choose [MENU][CONTACT]Select a single contact choose remote killThe message “remote kill successfully” will appear after a successful remote kill..If after 15 secondsStill no remote kill successThe message “Send failed” will pop up. After the receiver was successfully killed remotelyWill always be in the remote kill interfaceNo effect of any
7

operationAfter the restart is still stay in the remote kill interfaceIt will not return to normal until it is activated.
3. Activation Choose [MENU][CONTACT]Select the individual contacts that have been remotely killedSelect ActivationA pop-up message “Activation successful” will appear after successful activation .If after 15 secondsStill not activated successfullyThe message “Send failed” will pop up.
4. Call alert Choose [MENU][CONTACT]Select a single contact Select Call AlertA pop-up message “Call alert successful” will appear after a successful call alert.If after 15 secondsStill no call alert successThe message “Send failed” will pop up. After the receiver has been called to indicate successThe “drip drip” beep will always soundPress PTT to reply directly to the transmitter.
1. Radio check Choose [MENU][CONTACT]Select a single contact Select radio checkThe pop-up message “radio check successful” will appear after a successful radio check. If after 15 secondsStill no intercom check successThe message “Send failed” will pop up.
8

If the receiver has a serviceThe launcher failed to launch. The transmitter can’t transmit until the receiver is idle.
·
2. Remote monitoring Choose [MENU][CONTACT]Select a single contact select Remote monitoringA pop-up message “Remote listening successful” will appear after a successful remote listening succeed.If after 15 secondsStill not listening remotely successfullyThe message “Send failed” will pop up. The receiver has been remotely monitored successfully Press any key to exit the monitored state.
3.Review ID Choose [MENU][CONTACT]Press to select any contactSelect previewThe ID of the contact can be viewed.
4. Scan There are two ways to turn on scanning. The first choice is [MENU][SCAN]select on Voice announcement “Scan On”Automatic return to the main screenScan icon appears at the topKeep scrolling to display the scanned channelsAnd the orange light is flashing .The second one is to configure
9

programmable keysConfigure a short or long press of programmable key to scan on/off.
During scanning Access to the menu.After entering the menuWill stay on the same channel as when you entered the menuand the orange light no longer flashes.After exiting the menuRe-enter the scanning state.There are three ways to turn off scanning.The first is to press the up or down key directly The scan will automatically exit.The second is to go to the menu to turn off scanning.The third is to turn off scanning by short or long press of a programmable key .
5. Zone Choose [MENU][ZONE]Select target area. After successful selection, it will automatically return to the main screenand stays on the first channel of the selected area.
6. Bluetooth Choose [MENU][Bluetooth switch]Select on.After successful Bluetooth switch-onVoice announces “on” and the Bluetooth icon appears at the top. Press [EXIT] key Back to previous levelchoose [bluetooth connect]A pop-up message will appear if the Bluetooth connection is successful or unsuccessful.
10

7. Record Choose [MENU][RECORD][RECORDING FILE]Select on.When recording is successfully turned on Voice announcement “on”.Voice transmitted or received by the radio is recorded in fullSave to [RECORDING FILE]. Choose [MENU][RECORD][RECORDING FILE]Select a recording to play.During the playback of the recordingPressing the [MENU] key will play from the beginning, pressing the [EXIT] key will stop playback. Choose [MENU][RECORD][RECORDING FILE]Select a recording to deleteConfirming the deletion will delete the currently selected audio file. Choose [MENU][RECORD][DELETE ALL] Confirming the deletion will delete all the recording files in the list.
8. Switch power Choose [MENU][SET][POWER SET]Choose low power or high power.After successful switching of powerVoice announcement of “Low” or “High” and “L” or “H” icon at the top.
11

9. Tone settings Choose [MENU][SET][Tone settings]Select on or offVoice announcement of “On” or “Off” after successful selection.With the beep off, both key tones and beeps are turned off. 10. VOX Choose [MENU][SET][VOX][VOX GAIN LEVEL]default is level 2level 1 to level 3Incremental increase in sensitivity. Back to previous levelenter [SWITCH]Select on.Voice announcement of “on” after successful voice controlThe “V” icon appears at the top.
11. Power saving settings Choose [MENU][SET][POWER SAVING SETTING]There are three levels of power saving modes.
12

12. TOT Choose [MENU][SET][TOT]Select close launch time, launch time is unlimited.Select a launch time of 30s/60s/90s/120s/150s/180s When the transmitting time reaches the time limit, the transmitting will be forced to stop and the receiver will stop receiving.
13. Brightness Choose [MENU][SET][BRIGHTNESS]press [MENU]key Select different levels of brightness.
14. Backlight Choose [MENU][SET][BACKLIGHT],Select Long light and the display will stay on. The backlight duration is set to 5s/10s/15s/30s/45s/60s/120s/180s/240s/300sThe screen will automatically go out when the duration of no action has been reached.
15. Language Choose [MENU][SET][LANGUAGE]Select Chinese/English/Korean by pressing the [Menu] key.
16. Firmware version Choose [MENU][SET][Firmware version]The current software version can be viewed.
13

17. RADIO ID Choose [MENU][SET][RADIO ID],The machine ID can be viewed,
Other function descriptions and settings
1. Digital channel emergency alarm After the transmitter has been configured with the digital alarm system via [programmable key]Press and hold [programmable key] to initiate an emergency alarmThe receiver receives an emergency alarm and enters the first hot mic time, which lasts 10 seconds. After the first hot mic time, the alarm sounds, and the alarm lasts for 10 seconds,Go to the second hot mic time, which still lasts 10 seconds.After the second hot mic time, the alarm will continue to sound if there is no other operation of the transmitter and receiverReceiver presses any key to exit the alarm state, transmitter presses [programmable key] long to exit the alarm state.
14

2. Analog channel emergency alarm After the transmitter has been configured with an analog alarm system via the programmable buttonLong press [programmable key] to initiate emergency alarm, receiver receives emergency alarmEnter the first hot mic time, hot mic time lasts 10 seconds. After the first hot mic time, the alarm sounds, and the alarm lasts for 10 secondsEnter the second hot mic time, hot mic time still lasts 10 seconds.After the second hot mic time, the transmitter and receiver will automatically exit the alarm state.The number of non-polite retransmissions configured in the alarm system will be as many as the number of hot mic times.
15

3. Basic encryption Configuring secret key values via CPSSecret key values support pure numbers, pure letters and mixed alphanumeric values up to 8 characters in length.The secret key values of the transmitter and receiver must be the same in order for the call to work.If the secret key values of the transmitter and receiver do not matchOr if one of the units does not have encryption turned on, the call will turn into a noise-like sound.
4. Remote monitoring The receiver is idle, and the transmitter initiates remote monitoring of the receiver.After successful remote monitoring, the transmitter enters the receiving state and automatically ends reception after reaching the duration of remote monitoring Maximum duration of remote listening is 120 seconds, default is 10 seconds.If the receiver presses the [PTT key] or other keys while being monitored, the remote listening will be interrupted.
16

Troubleshooting

Issue

Solution

Battery may be depleted, replace

with a new one or recharge.

Unable to switch on The battery may not be installed

correctly. Remove the battery and reinstall it

Battery power doesn’t last long after a charge, either

The battery pack has expired. Please renew the battery.

Check that you are using the

same frequencies and dummy

Cannot talk to other members of the group

audio signals as the other members of the group. Other members of the group may be too far away, check that you

are within effective range of the

other radio.

Other (non-group) Please change the dummy audio

17

voices appear in the channel
Supplementary service delivery failure or no permission

signal. Be sure to change the signal tone of all intercoms in the group at this point.
Codecs for ticking supplementary services via CPS. Receiver in idle state.

FCC Statement: Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.
SAR tests are conducted using standard operating positions accepted by FCC with the device transmitting at its highest certified power level in all tested frequency bands, although the SAR is determined at the highest certified power level, the actual SAR level of the device while operating can be well below the maximum value. Before a new model is a available for sale to the public, it must be tested and certified to the FCC that is does not exceed the exposure limit established by the FCC. Tests for each product are performed in positions and locations as required by the FCC. For body worn operation, this device has been tested and meets the FCC RF exposure guidelines when used with and accessory designated for this product or when used with and accessory that contains no metal. To maintain compliance with FCC RF exposure guidelines hold the transmitter and antenna at least 1 inch (2.5 centimeters) from your face and speak in a normal voice, with the antenna pointed up and away from the face. The equipment complies with FCC radiation exposure limits set forth for and occupational / C/ ontrolledEEeExposure. In order to comply with the FCC RF exposure requirement, the antenna installation must comply with following: Users must be fully aware of the hazards of the exposure and able to exercise control over their RF exposure to qualify for the higher exposure limits. Your wireless hand-held portable transceiver contains a low power transmitter. This product sends out radio frequency (RF) signals when the Push-to-Talk(PTT) button is pressed. The device is authorized to operate at a duty factor not to exceed 50%.

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