COFDM Video Transmitter Wireless HDMI Receiver 2023 New

Table of Contents

1. What is COFDM Video Transmitter?

The COFDM video transmitter, a high-definition digital mobile video transmission system adopts the fourth-generation mobile communication core technology COFDM (multi-carrier modulation technology), combined with MH265 video coding technology, and independently developed equipment.

2. What is the application of the COFDM Video Transmitter?

The COFDM Video Transmitter can transmit real-time and stable high-definition audio and video under high-speed movement, in urban buildings, forests, and other occlusion conditions.
COFDM Video Transmitter is widely used in various fields such as public security fire protection, army, water conservancy, civil air defense, urban management, electric power, etc., and plays a huge role in emergency command and handling of emergencies.

COFDM Video Transmitter Application

Emergency Command

natural disaster
Flood Control and Drought Relief
Earthquake rescue
Geological disaster
forest fire prevention
Safe Production
railway accident
Air crash scene
rescue at sea
Electric emergency
Environmental emergencies
Communication Guarantee

Patrol on duty

remote support system
patrol command system
unattended system
airport patrol system
surface patrol system

Security Monitor

Public security “110”
Fire “119”
Traffic police “122”
Civil Defense Command
Urban Management Law Enforcement
Water Conservancy and Flood Control
Customs and border defense
Terminal monitoring
Oil field anti-theft
military reconnaissance

Broadcasting

Exercise live broadcast
news live broadcast
Live broadcast of literature and art
Live broadcast of the event

COFDM Video Transmitter Features

Not afraid of being blocked by trees and buildings, and has a certain diffraction ability
The product adopts a CNC shell, which has the characteristics of shock resistance and impact resistance
Optional lithium battery power supply
Using advanced COFDM modulation technology
High-speed travel-to-travel communication, up to 180Km/h
Non-line-of-sight transmission, the line-of-sight can reach more than 100 kilometers
All-round communication, 1080P high-definition image quality
Adjustable video rate, up to 15Mbps
Using the H265 encoding format
Portable mobile receivers can be used.

COFDM Video Transmitter and Receiver Products

5W piggyback transmitter
1W portable transmitter
Portable suitcase
Portable remote control
UAV remote control
Military combat command platform

COFDM 5W piggyback transmitter

It has broadcast-level audio and video encoding quality and supports multiple audio and video input modes
Two-way voice transmission and data transmission function
Aluminum alloy casing, impact resistance, good heat dissipation
The panel displays the operating frequency and other parameters, which can be adjusted by the user on-site, intuitive and easy to use
H.265 encoding, supports 1080P, and the code rate is automatically adjusted according to the channel bandwidth
It has the characteristics of non-line-of-sight (NLOS—NO LINE OF SIGHT) and transmission in motion
The working frequency is adjustable, that is, it can be set by itself within the specified frequency range
The transmitter adopts AES encryption technology, which can prevent others from receiving signals of the same frequency
2MHz, 4MHz, 6MHz, 8MHz bandwidth adjustable
Support HDMI interface input, support HDCP protocol
Battery powered
Dimensions (unit: mm) 220x150x60mm
Weight: Transmitter (bare metal): 1.5kg

COFDM 1W portable video transmitter for camera

COFDM 1W Portable video transmitter for camera wedding record

It has broadcast-level audio and video encoding quality and supports multiple audio and video input modes
Aluminum alloy casing, impact resistance, good heat dissipation
The panel displays the operating frequency and other parameters, which can be adjusted by the user on-site, intuitive and easy to use
H.265 encoding, supports 1080P, and the code rate is automatically adjusted according to the channel bandwidth
It has the characteristics of non-line-of-sight (NLOS—NO LINE OF SIGHT) and transmission in motion
The working frequency is adjustable, that is, it can be set by itself within the specified frequency range
The transmitter adopts AES encryption technology, which can prevent others from receiving signals of the same frequency
2MHz, 4MHz, 6MHz, 8MHz bandwidth adjustable
Support HDMI interface input, support HDCP protocol
portable waist bag
Battery powered
Dimensions (unit: mm) 110 x 66.5 x 44
Weight: Transmitter (bare metal): 150 g

COFDM Portable Handy Receiver

With broadcast-level audio and video decoding quality, it supports multiple audio and video output modes
Waterproof safety box, impact resistance, good heat dissipation
The panel displays the operating frequency and other parameters, which can be adjusted by the user on-site, intuitive and easy to use
It has the characteristics of non-line-of-sight (NLOS—NO LINE OF SIGHT) and transmission in motion
5G/4G transit can be customized, and remotely watched by the command center
17-inch bright screen, no pressure under the sun
Battery powered
Dimensions (unit: mm538406211mm
Weight: Transmitter (bare metal): 13Kg

COFDM Portable Video Remote Controller Receiver

COFDM-Portable-Video-Remote-Control-Receiver

With broadcast-level audio and video decoding quality, it supports multiple audio and video output modes
Metal shell, impact resistance, good heat dissipation
Easy to control and customizable
It has the characteristics of non-line-of-sight (NLOS—NO LINE OF SIGHT) and transmission in motion
10-inch bright screen, no pressure under the sun
Battery powered
Dimensions: 360x240x235mm
Weight: Transmitter (bare metal): less than 5Kg

COFDM tablet Video Receiver With Remote Controller

With broadcast-level audio and video decoding quality, it supports multiple audio and video output modes
Metal shell, impact resistance, good heat dissipation
Easy to control and customizable
It has the characteristics of non-line-of-sight (NLOS—NO LINE OF SIGHT) and transmission in motion
12-inch bright screen, no pressure under the sun
Battery powered
Dimensions (unit: mm27018030mm
Weight: Transmitter (bare metal): less than 3Kg

COFDM Military Combat Command Platform Receiver

Main Parameter

Frequency range: 300MHz—1.5GHz, can be customized, can also be customized 2.4GHz, 5.8GHz
Channel step: 1MHz
Transmission power: 200mW—–100W can be customized
Data interface: RS232, 1200bps—-115200 bps transparent serial port
Encryption method: AES128 and other encryption methods can be customized
Modulation method: COFDM
Configuration method: 2.4-inch touch screen, PC software
Audio and video input interface: SDI, HDMI, AV (AHD) optional
RF bandwidth: 1M — 8M adjustable, the step is 1M
Video code stream: determined by RF configuration parameters, 300Kbit——-16Mbit
Constellation diagram: QPSK, 16QAM, 64QAM
Receiver video output interface: default HDMI, other interfaces can be customized
Working temperature: -20℃—55℃

COFDM Wireless Video System transmission distance and transmission power amplifier relationship

Power Amplifier	LOS Transmission Distance	NLOS Transmission Distance
500mW	>10km	<300m
1W	>30km	<500m
5W	>60km	<1500m
20W	>120km	<3000m
50W	>200km	<5000m
100W	>250km	<10km

The above is only the distance given according to the limit conditions. The transmission distance of this distance is also different under different electromagnetic environments, geographical environments, and erection heights.

COFDM-Wireless-Video-Transmitter-Transmission-most-application

COFDM Video Transmitter Application

Fire UAV image transmission and control
All-terrain vehicles
High head fire truck
Remote Excavator

UAV / UGV COFDM Video Transmitter 3000mW Power For Long Distance Transmission
Detailed Product Description
Frequency: 300-900MHz(option), 12G/2.4G/5.8GHz(customized)
Constellation: QPSK,16QAM,64QAM,QPSK/16QAM/64QAM @ 6/7/8MHz
Voltage: DC 12V
Transmit Distance: 3km Max NLOS (manpack); 100km Max LOS (on Helicopter)
Size: 157*95*45mm
RF Output Power: 1-3 Watt
Bandwidth: 2.5MHz
Transfer Rate: 2/4/6/8Mbps

Introduction:

Such a new design 1080P HD transmitter is a powerful HD transmit system, using the core of mobile communication technology COFDM(multi-carrier modulation technique), which can transmit good quality and stable full-hd digital video signal under the condition of high-speed mobile and heavy building blocks transmission in a city environment. Support full HD 1080P H.264 encoding format and HD/SDI two HD inputs(single selection) as well support stereo balanced audio input and narrowband transmission system.

Features:

Low delay, lightweight, live broadcast;
Support Full- HD quality image;
Support 1080i/1080P HD transmission;
COFDM modulation;
Built-in with HDM or HD-SDI interface(single selection);
Support composite standard video and balanced audio input;
All parameters can be adjusted by the user;
Specification:

Power section
DC Input DC11V~DC16V
Working Current ≤1.1A@DC12.5V
Transmitter section:
Frequency range Output 250MHz-320MHz330MHz- 450MHz / 1000MHz –4400MHz,or can be customized according to customer’s request.
Modulation COFDM
RF bandwidth 4/8MHz(adjustable)
Power output 1-3W(adjustable),in 1dB step
SHG >52dBc
Encryption AES128/256bits
Constellation QPSK,16QAM,64QAM
FEC 1/2,2/3,3/4,5/6, 7/8
Guard Interval 1/32,1/16,1/8,1/4
Carrier 2K
Flatness Full band≤2dB,8MHz≤0.5dB
AV Interface HD/SDI(have to choose one)
CNR(weighting) 58dB
Sloping field SNR(unweighted) ≥50dB
Analog Audio
Balanced audio input range Vmax=±15V
Unbalanced audio input range Vmax=3Vpp
HD interface SDI/HD(single selection)
Encryption AES 128/265 bit / ALLTECH Basic scrambling
Standard SMPTE 425M (Level A and Level B), SMPTE 424M, SMPTE 292, SMPTE 259M-C SMPTE 272M SMPTE 299M
Input range 800±80(mV)
Versions HD 1.3
HDCP protocol Yes
Encoding support
AV rate 64, 96,112,128,160,192,224,256,320,384Kbps(adjustable)
Audio encoding mode MPEG1 Layer2
CBER <2.0E-4
Video resolution Maximum 1920×1080P/I@ 60P
Video coding H.264
Video rate 500kbps-16.68Mbps(autoadaptation)
Format YCbCr4:2:2
OperatingTemperature -25℃~55℃
Storage Temperature -40℃~70℃
Distance 1-40km LOS distance(on air)
1-2km NLOS distance(Ground to ground)