YEONHWA M TECH DX-8100 User manual

User Manual
Version #1 (2017-08-01)
YeonHwa M Tech Co., Ltd.
36, Jeonparo 44beongil, Manangu, Anyangsi, Gyeonggido, Korea Tel: [phone]
VHF Transceiver
DX-8100
DX-8200
UHF Transceiver
DX-8400

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1. DX-Series Features
DX-Series was developed with the user in mind to provide a compact and rugged design with
features to fit multiple types of jobs such as military, firefighting, construction site, industrial
site and large retailers.
It works in dual (analog / digital) mode, compatible with existing analog radio and efficient as
well in digital mode with clear voice quality, volume, call distance and usage time.
As follows:
 32 Channels in 16 Zones 32 (1zone = Max 32 Channels)
 512 Channel Capacity
 5/1 Watt RF Power Setting
 Text Messaging with inbox and outbox (within 40 letters), Max 10 sentences
 Encryption Mode (ARIA 128, 192, 256. LEA 128. 196. 256. AES128 256)
 TX Interrupt
 Lone Worker Mode
 Scan
 BCL / BCLO
 Time-Out Timer (TOT)
 Emergency / Siren
 Built in Flash Lamp
 Etiquette (Vibration)
 Voice recording and playback
 Mixed Channel Operation (Analog / Digital)
 GPS (Option)
 Five level VOX (Voice Operated Transmit)
 Five level S.Q (Analog)
 Remote Radio Stun / Kill / Revive
 Clear speaker volume of 1Watt
 UDC accessory connector for waterproof IP67
 3Lines Mono LCD Display
 Aluminum metal Frame Body
 DC+7.4V Li-ion / 2,600mAH

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2. Specification
2.1 DX Series
General
Frequency Range
Frequency Stability
Programmable Channels
Channel Spacing
Digital Vocoder
Dimensions
Weight
Power Source
Current Drain (maximum)
DX-8100 : 136~174 MHz
DX-8200 : 216~224 MHz
DX-8400 : 400 ~470 MHz
±1.5ppm (-30 to +60℃)
16 Zones / 32 Channels
12.5KHz
AMBE++
103mm(H) x 52mm(W) x 32mm(D)
280g
DC +7.4V Li-ion 2,600mAH Battery
Receive mode, rated audio out – 420 (Audio Max)
Transmit mode – 1,200mA
Standby mode – 110mA
Receiver
Sensitivity
Squelch Sensitivity
Selectivity
Spurious and Harmonic Rejection
FM Hum and Noise
Audio Output Power
Audio Distortion
Audio Response
Input Impedance
0.25uV 12 dB SINAD
0.22uV 10dB SINAD
65dB (12.5KHz)
75dB
40dB (12.5KHz)
1 Watt across an 16-ohm load
Less than 3% at rated output
+1, -3 dB from 6dB per octave de-emphasis Characteristic from 300 ~ 3000Hz
50 ohms
Transmitter
RF Power Output
Spurious and Harmonic
FM Hum and Noise
Audio Distortion
Audio Frequency Response
Output Impedance
5/1Watt
70dB
40dB (12.5KHz)
3% maximum with 1KHz modulation
+1, -3dB from 6dB per octave pre-emphasis Characteristic from 300 ~ 3000Hz
50ohms

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3. DX Package Contents
* The components may be changed at the request of the buyer.
Radio Unit Battery One Slot Charger Antenna
Belt Clip Strap User Manual
Figure 3-1) DX-Series Main Package Contents
XB-2600 : 2,600mAH Li-ion Battery Pack
XC-100D : One Slot Charger
XC-200D : Dual Slot Charger
423D-WS : 400~450MHz SMA Whip Antenna
460D-WS : 440~470MHz SMA Whip Antenna

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3.1 Appearance of DX Series Radio
Figure 3-2) DX-Series Appearance of the Radio Unit

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Figure 3-3) DX-Series Appearance of LCD
3.2 Button & LED Operations
Button & LED Operation Description
Power ON/OFF Turning the volume knob clockwise to power ON, volume up and turning
the knob counterclockwise to power OFF, volume down.
Volume/Menu
+/- Button
Press +/- button to control the call audio.
+ button will volume up and – will volume down.
In Menu status, it moves through list functions to choose from.
Up/Down Button
You can change the setting for the set channel.
32 channels can be input per zone.
You can move to other list functions in the progress of menu.
Zone Button You can proceed to change the calling area set by the user in order.
Menu/OK Button Button for entering into Menu mode.
When entered into Menu mode, you can choose each list functions.
Cancel/Return Button
Press the button to return to previous item in menu.
In the menu setting screen, it functions as cancel button.
P1, P2, P3 Button
Short press is Programmable Key.
Long Press of button more than 2 seconds is as follows:
- P1 is to disable the keypad lock function
- P2 is to turn Flash ON / OFF
- P3 is to turn Etiquette (Vibration) ON / OFF
Contact List Button Button directly for Contact List.
You can enter Private Contact, Private Call, Group Call or All Call.

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4. Basic Operations
Please fully read the instruction manual before use.
This manual provides convenient information related to radio operation.
4.1 Antenna Installation and Removal
To attached the antenna connector, fasten the antenna clockwise.
To remove the antenna, rotate it counter-clockwise.
Figure 4-1) Antenna Installation and Removal
When installation of antenna, giving a strong pressure to the radio or
pulling the antenna with a strong power from the radio can make a
damage on the antenna connector, which may cause the radio to have
a critical problem.

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4.2 Battery Installation and Removal
Refer to the figure 4-2 and 4-3.
To remove the battery, push the locker and pull following the arrow direction.
To install the battery, slide up the battery towards the top of the radio as number 1 and push
down as number 2 until battery latch is locked.
Figure 4-2) Battery Removal
Figure 4-3) Battery Installation

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4.3 Belt Clip Installation and Removal
Refer to figure 4-4.
To attach belt clip to the radio, align its rails with the grooves in radio and slide the belt clip
onto the mounting rails until it latches into place.
To remove belt clip from the radio, push up on tab of belt clip with flat bladed screw driver
and at the same time, slide the belt clip towards the top of Radio.
Figure 4-4) Belt Clip Installation and Removal
4.4 External Accessory Connector Jack
Connect the external accessory as shown in the picture.
Fix the main unit and the accessory by aligning them and tighten the screw.
To remove the accessory, loosen the fixed screw.

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Figure 4-5) External Accessory Jack
4.5 Charging the Battery
RED lamp indicates the radio is on the charger (XC-200D) that the unit is starting to charge
and the LED will illuminate GREEN when the charging is completed.
Charger (XC-200D) is dual to charge both the main unit and the battery pack.
When both of them are connected to the charger, the front radio with the battery will be
charged first and the batter pack later.
Figure 4-6) Charging the Battery

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5. Operation of DX Series
DX series Button Operations are as follows in figure 5-1.
Figure 5-1) DX Series Button Description
5.1 Power ON / OFF, Volume Switch
Turning the volume switch knob clockwise to power ON and turning the knob counterclockwise
to power OFF.
There will be a sound with a logo on LCD when turning ON the radio.
When turning the knob to counter-clockwise, you will hear good-bye and the radio will be
turned OFF.
You can also control the Volume level with the knob. It volumes up when you turn it clockwise
and volumes down when you turn it counter-clockwise.

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5.2 PTT Button
The radio transmits messages when pressing PTT button. It receives messages when releasing
the PTT button.
In order to have clear sound when transmitting, it is recommended to speak around 5~10cm
away from the MIC.
5.3 ZONE Button
When pressing Zone button, zone registered in the program will be selected in order.
You can choose channel by using UP/DOWN button in selected zone.
5.4 Menu Button
After pressing the menu button, you will see the menu listed below as figure 5-2.
When pressing the left arrow button, it moves to the left.
When pressing the menu button one more time while in the menu, it moves to detailed menu
section of the selected one.
Figure 5-2) DX Series Menu

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Figure 5-2) DX Series Menu Tree
5.5 Channel Menu UP / Down Button
Regularly UP / DOWN buttons are for the channel selection.
In the menu screen, it moves through different functions (UP&DOWN).
5.6 Contact Button
Press the button to enter the contact list programmed into the radio such as Private, Group
and All Call.
5.7 P1, P2, P3 Programmable Button
Press of the buttons allow the enable and disable of programmed functions.
Operational short press and long press (Over 2 seconds) are available.
You can set the function with short Key in PC program.
However, Long Key is defined in the radio itself.

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When Keypad Lock is ON, key Lock is set automatically in 10 seconds when there is no press of
buttons.
P1 is to disable temporarily the keypad lock function and you need to press Long Key to
unlock it.
It automatically locks again when you do not press the buttons in 10 seconds.
In order to unlock totally the keypad lock, go to the menu-settings and select OFF in the
Keypad Lock menu.
P Button Short Key Long Key
P1 Programmable Key Lock ON /
OFF(Temporarily)
P2 Programmable Flash Light ON / OFF
P3 Programmable Vibration ON / OFF
5.8 UDC EAR / MIC Jack
UDC EAR/MIC Jack is used in the following cases:
1) When using external speaker MIC
2) When setting radios with CPS Program
3) When communicating with external terminals
5.9 LED Indication Status
This LED is a lamp indicating the current status of the Radio and please refer to the below
contents.
① Normal TX: Red Lamp
② Normal RX: Green Lamp
③ Green lamp flickers when frequency matches but not the color code.
④ Low Battery: Red Lamp blinks with “beep” sound.

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6. Charging the Battery
6.1 Safety Notes
1) DX-series receives power from high-performance Li-ion battery (XB-2600).
Battery is safe of high performance and highly reliable.
When using the standard charger, it allows you to fully use the battery’s efficiency and life span.
The charging of the enclosed radio on the other maker’s charger will
cause damage to the battery and also a trouble.
2) Please charge the battery before using the radio for best performance and safety.
3) When you charge the battery that is installed in the radio, please turn off the radio first to
charge the battery.
The continuous rapid discharge (For example, when making a short
circuit on the ‘+,-‘ terminals of battery by a metal substance) may make
a fatal defect and the battery can be exploded as well as cause fire.
6.2 The Time of Charging
low battery voltage may reduce communication coverage and also make the performance
worse.
Please charge the battery in case of following:
1) When you think the performance of the radio has degraded.
2) When the red lamp on RX / TX LED blinks (every 0.5 seconds) during transmission or
reception.
3) When the battery icon flickers.
4) When you hear the “beep” sound while the radio is in use.
6.3 How to Charge
1) Plug the adaptor of XC-200D charger in general power AC220V.
2) When charging the battery that is equipped with radio, please turn off the power of the
radio and plug it in the charger.

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3) Even if charging it completed (green lamp lights shown), please charge about 30 more
minutes for a full charge.
Status LED Indication Status LED Indication
Charging Red LED lights Error Detection Red LED flickers
Complete
Charging Green LED lights Keep Charging Green LED Appears
7. DX-Series Operation
7.1 Menu Functions
To enter the menu lists, press button to have access.
There are 8 main menus and you can use the radio more conveniently if you use it according
to your purpose and environment.
Figure 7-1) DX Series Menu Lists
☞ Note) If the menu is not operated for at least 25 seconds after launch, the radio will revert
to standby mode.
7.1.1 Contact
Set the contact list by CPS program and press PTT button to call.
When you prefer to call another registered call, select from the list and press PTT button.
It is available to register / delete the contact list by CPS (Customer Programing Software).
You can find Individual, Group and All Call list by selecting the Contact menu.
 Icons below are shown in the contact list.
- : Individual Call List (Individual Call , Send individual message)
- : Group Call List (Group Call , Send group message)
- : All Call List (Can use the terminals with the same channel and color code)

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7.1.2 Messages
When you receive a message, the contents will be displayed on the LCD screen.
When you are in the menu and the message is sent by someone, it will appear as an icon.
There are Quick Text, Inbox and Outbox function as follows:
1) Quick Text
The preset messages are up to 10 in total by CPS Program.
Each message can be written up to 40 letters and be edited.
You can see the quick text message when selecting from the menu and select the
message and press button to see it.
When you press one more time button, the message will be sent to the terminal.
2) Inbox
Stores up to 10 receives text messages; when the received messages exceed 10, the
oldest message is cleared and the newest incoming message is registered.
When you choose messages stored in the list, you can view the received messages.
You can also delete the received messages by selecting all delete menu.
3) Outbox
Stores up to 10 outgoing text messages; when the outgoing messages exceed 10, the
oldest message is cleared and the newest send message is registered.
When you choose messages stored in the list, you can view the sent messages.
You can also delete the sent messages by selecting all delete menu.
7.1.3 Call Logs
The function allows the viewing of incoming and outgoing calls from individuals only.
The Group and All call records are not saved. The contents are managed in the same manner
as Inbox / Outbox of the messages.

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1) Inbox
Call records in the inbox can be saved up to 10.
You can also see the caller ID.
Stores up to 10 receives calls; when the received ones exceed 10, the oldest call is
cleared and the newest incoming call is registered.
You can also delete the received records by selecting all delete menu.
2) Outbox
Stores up to 10 receives calls; when the received ones exceed 10, the oldest call is
cleared and the newest outgoing call is registered.
You can also see the caller ID.
You can delete the sent records by selecting all delete menu as well.
7.1.4 Record
This function is used to record the content of incoming and outgoing calls.
You can delete all when the recorded contents are unnecessary.
Up to 63 conversations / recordings can be stored with each recording limited to 2 minutes
and 30 seconds.
Turn ON or OFF the setting in the menu when you need this function.
In the state that the encryption function is selected, only the call with
the encryption mode can be heard in normal recording and call with no
encryption mode cannot be heard.
7.1.5 Scan
Channels set in the scan list can be scanned in order when the Scan function is ON.
When there is used channel while scanning, it stops at that channel and receives the contents.
When wanting the call while scanning, use the CPS Program.
1) Scan ON/OFF
This function provides the ability to turn scan ON/OFF and review the scan list as
programmed into the radio via the Program.

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2) Scan List
You can set the scan list via CPS Program.
7.1.6 ZONE
Up to 16 zones (with up to 32 channels per zone) can be programmed into the radio via CPS
program.
7.1.7 Setting
This function allows the changes to the settings of the radio status.
There are Power level, Encryption, Voice Operated Transmit (VOX), Lone worker, BCL/BCLO,
Keypad lock, Tones, LCD Backlight, LCD Contrast/Brightness, LED control, Language etc.
1) TX Output
This function sets the power transmitting level at high or low.
2) Voice Encryption
This is a feature to encrypt the incoming and outgoing voice.
Voice Encryption function can only be performed from digital channel to each channel.
Voice Encryption code is set via CPS Program.
Encryption code can be set from 0 to 65535.
3) VOX
VOX function allows transmitting voice without pressing the PTT button.
VOX sensitivity level is adjusted from 1 to 5 and can be set by users via CPS program.
4) Lone Worker
This function can inform others about your safety within the time set in the menu.
Setting time is from 1 minute to 100 minutes

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5) BCL / BCLO
This function prevents interference when the channel is busy and limits the TX.
BCL : If the current channel is busy, the transmission is prohibited.
BCLO : The transmission is done regardless of the busy status of the channel.
6) Keypad Lock
This function locks the keypad to prohibit the accidental press of keys and buttons by the users.
When Keypad lock is ON, all keys and buttons are locked except the PTT button, the
emergency button and power ON/OFF.
Press the key for 2 seconds to temporarily unlock the keypad for 25 seconds. Then, the
keypad will be locked again.
To unlock the keypad, go to the setting and select Keypad Lock and changed the status to OFF.
7) Tones
This function enables or disables the tones associated with key and button presses.
Only ON/OFF setting is allowed with the radio itself.
The details can be set through CPS program.
8) LCD Backlight
This function allows the backlight of the LCD to be turned ON/OFF.
9) LCD (Contrast/Brightness)
This function is to adjust the contrast/brightness of from 1 to 7.
10) LED Control
This function is to set the enable or disable the radio LED status.
You can set it with CPS program the details.