YEONHWA M TECH DX 100 User Manual

DX- 100/400 Series

User Manual

VHF Transceiver

DX-100

UHF Transceiver

DX-400

Yeon Hwa M Tech Co.,Ltd.

36, Jeonpa-ro 44beon-gil, Manan-gu, Anyang-si, Gyeonggi-do, 14086, Korea
Tel : [phone] / E-mail : [e-mail] / Web : www.xradio.co.kr

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DX-100/400 Series Main Features

The DX-100/400 Digital Radio was developed by Yeonhwa M Tech Co., Ltd. to be user-friendly

and compact design, to have various features and to use at the construction / industrial /

commercial / public areas for the safety & convenience of users.

It provides better communication distance, audio quality and volume, duration of use through

digitalization than Analog radio.
The followings are the main features of the DX-100/400 Series Radio.

 16 Zones and 32 Channels are selectable. (1zone = Max 32

Channels)

 512 CH can be set.

 Dual-mode(Analog & DMR) Operation

 English and Korean setting function.

 RF Power setting function.

 Short (up to 40 characters) message sending and reception

functions.

 Encryption mode ( AES 128, 192, 256 )

 Transmit Interrupt (Option)

 Lone Worker mode

 Normal scan

 5-step VOX (Voice Operated Transmit) can be set

 Time-Out Timer (TOT) / BCL function

 Emergency / Siren function

 Built in Flash Lamp
 Etiquette (Vibration) function
 Voice recording and playback

 VOX (Voice Operated Transmit)
 5-step S.Q can be set (Analog support).

 Remote Radio Stun / Kill / Revive

 Speaker volume of 1 Watt

 Use of Motorola accessories and a shared

 3Lines Mono LCD Display

 Aluminum metal Frame Body
 Adopt DC+3.8V 2,200mAH high capacity Battery
 Micro USB charge through Desk Top Charger or Direct through

Radio

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2. Specification

General

Frequency Range

Frequency Stability
Programmable Channels
Channel Spacing
Digital Vocoder
Dimensions
Weight
Power Source
Current Drain (maximum)

Receiver

Sensitivity
Squelch Sensitivity
Selectivity
Spurious and Harmonic Rejection
FM Hum and Noise
Audio Output Power
Audio Distortion
Audio Response

Input Impedance

Transmitter

RF Power Output
Spurious and Harmonic
FM Hum and Noise
Audio Distortion
Audio Frequency Response

Output Impedance

2.1 DX-100/400

DX-100 : 140~174MHz
DX-400 : 440 ~ 470 MHz

±1.5ppm (-30 to +60℃)
16 Zones / 32 Channels

12.5KHz
AMBE++
99mm(H) x 51mm(W) x 21mm(D)
160g
DC +3.8V Li-ion 2200mAh Battery
Receive mode, rated audio out – 320 (Audio Max)
Transmit mode – 1,700mA
Standby mode – 120mA

0.22uV 12 dB SINAD

0.20uV 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

3/1Watt
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. Checking items in the package

 Components could be changed by buyer request.

Radio unit Battery 2 slot charger Antenna

Belt clip Hand strap User manual

Figure 3-1) DX-100/400 series main items

Battery (XB-2000) : 2200mAH Li-ion battery pack

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3.1 Appearance of DX-100/400 Series Radio

Figure 3-2) Appearance of DX-100/400 Series Radio

Figure 3-3) LCD Indication of DX-100/400 Series Radio

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4.1 Basic Button Operations

Button & Jack

Operation Description

Power ON/OFF

Press and hold the power button for 2 seconds, the device power is turned ON.
When you press the power button for 2 seconds during use, the power is OFF..

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.

Volume/Menu

+/- Button

+/- Button can adjust the call sound by using, and if you press the [+] button,
the sound will be increases if you press the [-] button, the sound will be
smaller. In the menu, you can move to the menu item.

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).

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.

Menu Button

When pressing the menu button one more time while in the menu, it moves to detailed
menu section of the selected one.

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:

P Button

Short Key

Long Key

P1

Programmable

Key Lock ON / OFF(Temporarily)

P2

Programmable

Flash Light ON / OFF

P3

Programmable

Vibration ON / OFF

Contact Button

Press the button to enter the contact list programmed into the radio such as Private,
Group and All Call.

EAR/MIC Jack

This jack is used to connect external speaker Mic, and headset, etc

LED indication

This LED displays the operating status of the device

① TX : Red Lamp. ② RX : Green Lamp.
③ Green blinks: when the frequency is the same but the color code does not match.

④ Low Battery: Red Lamp blinks with “beep” sound

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5. Installation and Removal

When installation of the antenna, giving a strong pressure to the Radio or pulling

the antenna with a strong power from the Radio can make damage on the

antenna connector, which may cause the Radio to have a critical problem.

5.1 Antenna installation and removal

To install the antenna, insert the antenna into antenna connector and screw the antenna

clockwise. To remove the antenna, screw the antenna counter clockwise.

Figure 4-1) Antenna installation and removal

5.2 Battery installation and removal

Removal of the battery is shown in Figure 4-2.

Slide the rear cover in the direction of the top and open the cover. And then remove the

battery. Slide and hold down, the battery is inserted. Insert the back cover to the below hole

and press the cover as shown in Figure 4-3. Then the cover will be equipped.

Figure 4-2) Battery installation and removal Figure 4-3) Rear cover mounting

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5.3 Cradle installation and removal

To install and remove the cradle, push the cradle latch in direction 1 and pull the body in
direction 2, and the installation method is reserved.

Figure 4-4) Cradle(Belt clip) installation and removal

5.4 External accessory connection

Align the body with accessory hole and push and tighten the screws as shown figure 4-5.

To remove the accessory, loosen the screw and pull out.

Figure 4-5) External accessory connection

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5.5 Charging USB

The charging of the enclosed Radio on the other maker’s charger will

cause damage on the battery and also, will cause a trouble on the

Radio.

The continuous rapid discharge (for example, when making a short

circuit on the ‘+’ terminal of battery by a metal substance) may make a

fatal defect and the battery can be exploded. Also, it can cause a fire.

Open the USB cover and connect the micro USB charging adaptor. And the LED will turn

on the red color. When charging is completed, the charging LED will turn green.

Figure 4-6) Charging USB

6. Charging the Battery

6.1 Safety Notes

1) The radio of DX-100/400 series receives power from high-performance Li-ion battery (XB-

2000).

XB-2000 Battery is safe of high performance and highly reliable, and could be charged very fast.

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.