Description
PRODUCT DESCRIPTION
The EUT is a DMR Digital Transceiver designed for voice/data communication. It is designed by way of
utilizing the FM/4FSK modulation achieves the system operating.
A major technical description of EUT is described as following:
Communication Type Voice / Data Hardware Version MD750-V2.1.4
Software Version V1.1.1 Modulation FM/4FSK
Emission Type 7K60FXD/7K60FXE/11K0F3E
Emission Bandwidth
Analog:10.254KHz(5W-12.5 KHz), 10.251KHz(1W-12.5 KHz) —VHF
Digital: 9.264KHz(5W),9.824 KHz(1W) —VHF
Analog:10.275KHz(5W-12.5 KHz), 10.282KHz(1W-12.5 KHz) —UHF
Digital: 9.828KHz(5W), 9.250KHz(1W) —UHF
Peak Frequency Deviation 1.95KHz
Audio Frequency
Response 7.60dB
Maximum Transmitter Power
Analog:36.90dBm(5W-12.5 KHz), 29.88dBm (1W-12.5 KHz) —VHF
Digital: 36.77dBm(5W), 29.83dBm (1W) —VHF
Analog:36.92dBm(5W-12.5 KHz), 29.85dBm (1W-12.5 KHz) —UHF
Digital: 36.78dBm(5W), 29.81dBm (1W) —UHF
Output power Modification
VHF:5W/1W
UHF:5W/1W
(It was fixed by the manufacturer, any individual can’t arbitrarily
change it.)
Data Rate 9600bps/12.5KHz(Channel Spacing)
Antenna Designation Detachable Antenna Gain 1.2dBi
Power Supply DC 7.4V
Limiting Voltage DC 6.29 V~ 8.51V
Operation Frequency
Range and Channel
Frequency Range: 136 MHz to 174 MHz (VHF) 400 MHz to 470
MHz (UHF)
Channel Separation: 12.5KHz(Digital/ Analog)
Bottom Channel: 136.025MHz Middle Channel:151.85MHz Middle Channel:155.025MHz Middle Channel:161.61MHz High Channel: 173.975MHz
Bottom Channel: 400.025MHz Middle Channel: 453.225MHz Middle Channel: 454.025MHz High Channel: 469.975MHz
Frequency Tolerance 1.096ppm
FCC Rules and Regulations Part 2.202: Necessary Bandwidth and Emission Bandwidth
For FM Mode (ChannelSpacing: 12.5kHz)
Emission Designator 11K0F3E
In this case, the maximum modulating frequency is 3.0 kHz with a 2.5 kHz deviation.
BW = 2(M+D) = 2*(3.0 kHz + 2.5 kHz) = 11 kHz = 11K0
F3E portion of the designator represents an FM voice transmission
Therefore, the entire designator for 12.5 kHz channel spacing FM mode is 11K0F3E.
For FM Mode (Channel Spacing: 25kHz)
Emission Designator 16K0F3E
In this case, the maximum modulating frequency is 3.0 kHz with a 5.0 kHz deviation.
BW = 2(M+D) = 2*(3.0 kHz + 5.0 kHz) = 16 kHz = 16K0
F3E portion of the designator represents an FM voice transmission
Therefore, the entire designator for 25 kHz channel spacing FM mode is 16K0F3E.
For Digital Mode (Channel Spacing: 12.5 kHz)
Emission Designator 7K60F1D and
7K60F1E
The 99% energy rule was used for digital mode. It basically states that 99% of the modulation energy falls
within X kHz, in this case, 7.60 kHz.
F1D and F1E portion of the designator indicates digital information.
Therefore, the entire designator for 12.5 kHz channel spacing digital mode is 7K60F1D and 7K60F1E.
Manufactured Key Specifications/Special Features:
•CTCSS/DCS
•Programmable CTCSS/DCS
•Wide/Narrow band selectable
•End-tone detection
•DTMF encode/decode
•PTT ID
•Password
•Firmware update
•Dual time slot for point to point
•Dual time slot for repeater
•FM radio
•5 watt output power
•Remote monitor/Emergency alarm
•Contact view and edit
•Message view and edit
•PC programmable function
•1750Hz tone
•Torch function
•Dual band/Dual display/Dual standby
Package contents:
1x TYT DM-750 Digital DMR Walkie-talkie
1x headset
1x desk charger (docking station) with adapter
1x lanyard
1x Dual band antenna
1x manual
1x Li-ion battery 2200Mah
1x Programming Cable
Programming software download:
Program v1.1.4.zip
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