YEONHWA M TECH MD-400D UHF Transceiver User Manual

YEONHWA M TECH CO.,LTD UHF Transceiver

User Manual

User Manual VHF Transceiver MD-100D UHF Transceiver MD-400D
Version #1 (2017-08-01) YeonHwa M Tech Co., Ltd. 36, Jeonparo 44beongil, Manangu, Anyangsi, Gyeonggido, Korea Tel: 82-31-444-7270 MD-400D User Manual 1. MD-420D Digital RF Modem Specification The MD-Series standardized the specifications of the instrument exterior and connectors so that the digital RF modem can maintain compatibility with existing analog modems. When using the digital mode, it is very efficient with the existing analog problems such as data error, clean sound quality and volume, call distance, usage time MD-Series Specification is as follows: ▪ Usage frequency VHF : 136~174MHz, UHF : 400~470MHz ▪ 1 Zones 32 channels selectable (1zone = Max 32 channels) ▪ Total 32 channels can be configured ▪ 5/1 Watt RF Power ▪ Encryption is available as option (AES128, 256) ▪ 5 level S.Q selectable (Supports Analog). ▪ Remote Radio Stun / Kill / Revive ▪ Available to connect speaker of 1Watt ▪ Data rate in wireless section : 9,600bps ▪ RS-232C communication rate : Standard 115,200bps(Change available according to program setting) ▪ Add AT Command for user convenience ▪ User friendly for enabling PC based modem Control GUI Software ▪ Aluminum metal Frame Body ▪ Service connector : DE-15 pin Female Connector ▪ Power supply : DC +9.0~DC+24V
2. Specification 2.1 MD-Series Specification General Frequency Range Frequency Stability Programmable Channels Channel Spacing Digital Vocoder Dimensions Weight Power Source Current Drain (maximum) MD-100D : 136~174 MHz MD-400D : 400 ~470 MHz ±1.5ppm (-30 to +60℃) 1 Zones / 32 Channels 12.5KHz AMBE++ 103mm(H) x 52mm(W) x 32mm(D) 280g DC +9.0 ~ +24V 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 3. MD Series Components 3.1 Equipment name * Components may differ according to the request of buyers. Figure 3-1) MD-400D Series Component
3.2 Status Display LED This is LED which displays the equipment status. The main status display is as follows: ① Red color when normal transmission ② Green color when normal receive 4. How to use MD-400D Series 4.1 Message transmission and receive tools You can send and receive messages through the AT Command, but the PC tool is provided to make it easier to use.
Figure 4-1) Message tool 4.1.1 Messages It is possible to send and receive messages between the modem and the modem, and between the modem and the terminal. By providing the PC interface as above, convenient configuration is possible. You can configure the file or database connection to store additional messages. Since it is based on PC, it can be saved as much as the capacity of the PC can be allocated, so it can be seen that the capacity is not limited. 4.1.2 Basic Protocol Supports an ACK message to determine whether the opponent terminal has received. When a message is sent, the receiving terminal automatically sends an ACK message. When the message is received, the other terminal informs the receiving terminal that the message has been received normally.
Figure 4-2) Normal Message Transmission and Receive Method Figure 4-3) Action on Message Transmission Error If an error occurs in the delivery of the message, the specified number of retries will be retransmitted after 5 seconds. Finally, there is no format restriction of characters, and it supports messages of up to 80 characters. 4.1.3 AT Command Use AT Command to set the status of the transceiver(radio) or to use the function. After connecting the serial port, use the terminal program. The basic speed is 115,200 bps. 1) Modem version information verify command (VERSION) Description Command to verify the modem version information Query Answer 1. AT*VERSION *VERSION:<value1>
Parameters <value1> S/W Version Example AT*VERSION *VERSION:YEONHWA Modem v1.0 OK 2) Modem Status verify command (CHKSTAT) Description Command to verify modem status Query Answer 2. AT*CHKSTAT *CHKSTAT:<value1> Parameters <value1> STAT OK – Normal status STAT ERROR – Error status Example AT*CHKSTAT *CHKSTAT:STAT OK OK 3) Modem information verify command (MINFO) Description Command to verify modem information Query Answer 3. AT*MINFO *MINFO:<value1>,<value2>,<value3>,<value4> Parameters <value1> Channel number <value2> Frequency <value3> Call ID <value4> Group ID
Example AT*MINFO *MINFO:1,440.000,1,1 OK 4) Modem Reset (RESET) Description Command to reset modem Query Answer AT*RESET RESET Parameters <value> Reset the modem Example AT*RESET RESET Going down terminal… 5) Sending Message (MSG) Description Command use when sending message Query Answer AT*MSG=<value> MSG OK Parameters <value> Message to be sent Example AT*MSG=TEST MSG OK 6) Receiving Message (RMSG) Description
Command use when receiving message Answer RMSG=<value> Parameters <value> Receive message Example RMSG=TEST 7) Check channel list (CHLIST?) Description Command to verify when receiving message Answer AT*CHLIST? Parameters CHNUM: <value> : Current channel number Whole channel number: Classified channel number, RX frequency, TX frequency … <repeat>
Example CHNUM:01 01:0:ANA,RX:441000000,TX:441000000 02:1:ANA,RX:423600000,TX:423600000 03:2:ANA,RX:423612500,TX:423612500 04:3:ANA,RX:423625000,TX:423625000 05:0:DMR,RX:440000000,01,TX:440000000,01 06:1:DMR,RX:423200000,01,TX:423200000,01 07:2:DMR,RX:423212500,02,TX:423212500,02 08:3:DMR,RX:423225000,03,TX:423225000,03 09:4:DMR,RX:423237500,04,TX:423237500,04 10:5:DMR,RX:423250000,05,TX:423250000,05 11:6:DMR,RX:423262500,06,TX:423262500,06 12:7:DMR,RX:423275000,07,TX:423275000,07 13:8:DMR,RX:117440512,07,TX:117440512,07 14:9:DMR,RX:117440512,07,TX:117440512,07 15:10:DMR,RX:117440512,07,TX:117440512,07 16:11:DMR,RX:117440512,07,TX:117440512,07 OK 8) Channel setting (CHSET) Description Command to verify when receiving message Answer AT*CHSET=<value> Parameters <value> Channel number Example AT*CHSET=3 CH:03 OK 5. For Safe Operation 5.1 Precautions Do not remove the antenna from the radio or do not transform the antenna or do not make any changes on the antenna. The strong electronic wave to be emitted from the radio can have an effect on the performance of the radio and can cause the radio to have a defect.
Do not use accessories (such as rechargeable battery, adaptor, external speaker microphone and earphone etc.) from the other makers, which can cause defect on battery and malfunction or a defect on the radio. Do not disassemble or reorganize the radio. The disassembly or reorganization will cause a defect or malfunction on the radio. It will be impossible to repair afterwards. There will also be a punishment made by the Radio Waves Act. Do not use other frequency except for the permitted frequency in order not to be punished by the Radio Waves Act. • Do not give an excessive shock to the radio. • Do not place the radio where the direct sunlight and/or the high temperature occurs.. • If the radio is placed for a long time in a car in summer, the hot temperature in the car may cause explosion of battery. • Do not make a damage to the battery by a sharp substance and/or an excessive shock. 5.2 Influences on the Operations of Radio or Other Equipment The radio emits a strong electronic wave, which may have an effect on the operation of other equipment and also can be influenced by the other devices. Please turn off the radio before boarding on the airplane. When using the radio in the airplane, please follow the rules or the instructions of the flight attendants. In case of the area that medical equipment are being used, please use the radio after discussion with the equipment producer or the related doctor.
Please do not use the radio at the place where computer or other electric/electronic devices are being used. The strong electronic wave from the radio can have an effect on the equipment. 6. Safety Notes Please make sure to read the followings above for safe and effective use of the radio. • An indication of the maximum antenna gain permitted to ensure compliance. this would be 1.5 dBi. • At the area where an electromagnetic force can be made, please make sure to turn off the power of the radio. • The user should limit the operation to 50%. • RF Safety Distance of 13.21 cm for Occupational/Controlled Exposure and 29.46 cm for General Population/Uncontrolled Exposure which met the FCC Limits. • Be careful that if the outer surface of the antenna is peeled off, there is a danger of a topic. 7. Handling Caution • Any changes or modifications not expressly approved by the party responsible for compliance with the FCC regulations could void the user's authority to operate the equipment. • It is forbidden to install or operate the device other than the responsible person (licensed person). •The user manual is included in the box. •How to use and install the product is shown in the figure.
8. Usage Application ▪ Water/Waste Treatment ▪ Plants Oil and Gas Field, SCADA ▪ Security/Alarm System ▪ Gate Systems, Remote Controls ▪ Commercial Sign Control ▪ Automatic Vehicle Location ▪ Murphy/Kill Switches ▪ Weather Monitoring ▪ Irrigation Systems ▪ Emergency Call Boxes ▪ Low Power Repeaters
Warranty Statement Thank you for purchasing MD-100D/ MD-400D Series. 1. This product has passed strict quality control and testing process by YeonHwa M Tech. 2. Warranty is one year from the day of release. • When there is malfunction of the product under normal operating conditions during the warranty period, your authorized dealer and the service center will repair it free of charge. 3. Service fees will be charged for the following cases: • When performance failed, malfunction or damaged after the warranty period. • When the product is damaged due to user’s mishandling or improper operation. • When the product is damaged due to fire, pollution, earthquakes and any other natural or unnatural conditions, accidents etc. • Malfunction by not keeping the notices written in the user manual. • Malfunction by not using the appointed adaptor. • When the product is damaged due to user’s modification, attempts of repairing rather than the appointed service center. 4. Product Check List Model Name MD-Series Serial No. Purchase Date Purchaser Name Address ※ Please fill out this check list when purchasing the product. YeonHwa M Tech Co., Ltd. 36, Jeonparo 44beongil, Manan-gu, Anyang-si, Gyeonggi-do, Korea 14086 TEL: 82-31-444-7270 FAX: 82-31-444-7271

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