COFDM Video Transmitter Wireless HDMI Receiver 2023 Mới

Mục lục

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, vv, and plays a huge role in emergency command and handling of emergencies.

Ứng dụng truyền video COFDM

Emergency Command

natural disaster
Flood Control and Drought Relief
Earthquake rescue
Geological disaster
phòng chống cháy rừng
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

Phát sóng

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 km
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, đó là, 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, 8Có thể điều chỉnh băng thông MHz
Support HDMI interface input, support HDCP protocol
Battery powered
Kích thước (unit: mm) 220x150x60mm
Cân nặng: transmitter (bare metal): 1.5kilogam

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, đó là, 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, 8Có thể điều chỉnh băng thông MHz
Support HDMI interface input, support HDCP protocol
portable waist bag
Battery powered
Kích thước (unit: mm) 110 x 66.5 x 44
Cân nặng: 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
Kích thước (unit: mm538406211mm
Cân nặng: transmitter (bare metal): 13Kilôgam

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
Kích thước: 360x240x235mm
Cân nặng: 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
Kích thước (unit: mm27018030mm
Cân nặng: transmitter (bare metal): less than 3Kg

COFDM Military Combat Command Platform Receiver

Main Parameter

Dải tần số: 300MHz—1.5GHz, can be customized, can also be customized 2.4GHz, 5.8GHz
Channel step: 1MHz
Công suất truyền tải: 200mW—–100W can be customized
Giao diện dữ liệu: RS232, 1200bps—-115200 bps transparent serial port
Encryption method: AES128 and other encryption methods can be customized
Phương pháp điều chế: COFDM
Configuration method: 2.4-inch touch screen, PC software
Audio and video input interface: SDI, HDMI, HÀNH (AHD) không bắt buộc
RF băng thông: 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
Nhiệt độ làm việc: -20℃—55℃

COFDM Wireless Video System transmission distance and transmission power amplifier relationship

Quyền lực Amplifier	LOS Transmission Distance	NLOS Transmission Distance
500mW	>10km	<300tôi
1W	>30km	<500tôi
5W	>60km	<1500tôi
20W	>120km	<3000tôi
50W	>200km	<5000tôi
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

Ứng dụng truyền video COFDM

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
Mô tả sản phẩm Chi tiết
Tần số: 300-900MHz(Tùy chọn), 12G / 2,4G / 5,8 GHz(tùy chỉnh)
chòm sao: QPSK,16QAM,64QAM,QPSK/16QAM/64QAM @ 6/7/8MHz
Vôn: DC 12V
Khoảng cách truyền: 3km Max NLOS (manpack); 100km Max LOS (on Helicopter)
Kích thước: 157*95*45mm
Công suất đầu ra RF: 1-3 watt
băng thông: 2.5MHz
Transfer Rate: 2/4/6/8Mbps

Giới thiệu:

Bộ phát HD 1080P thiết kế mới như vậy là một hệ thống truyền HD mạnh mẽ, using the core of mobile communication technology COFDM(kỹ thuật điều chế đa sóng mang), có thể truyền tín hiệu video kỹ thuật số full-hd ổn định và chất lượng tốt trong điều kiện truyền tải khối xây dựng nặng và di động tốc độ cao trong môi trường thành phố. Hỗ trợ định dạng mã hóa full HD 1080P H.264 và hai đầu vào HD/SDI(lựa chọn duy nhất) cũng hỗ trợ đầu vào âm thanh cân bằng âm thanh nổi và hệ thống truyền dẫn băng thông hẹp.

Tính năng, đặc điểm:

Độ trễ thấp, nhẹ, phát sóng trực tiếp;
Hỗ trợ đầy đủ- Hình ảnh chất lượng HD;
Hỗ trợ truyền HD 1080i/1080P;
COFDM điều chế;
Tích hợp với giao diện HDM hoặc HD-SDI(lựa chọn duy nhất);
Hỗ trợ đầu vào video tiêu chuẩn tổng hợp và âm thanh cân bằng;
Tất cả các thông số có thể được điều chỉnh bởi người dùng;
Đặc điểm kỹ thuật:

Phần điện
Đầu vào DC DC11V~DC16V
Dòng điện làm việc ≤[email protected]
Phần máy phát:
Frequency range Output 250MHz-320MHz330MHz- 450MHz / 1000MHz –4400 MHz,hoặc có thể được tùy chỉnh theo yêu cầu của khách hàng.
Điều chế COFDM
RF bandwidth 4/8MHz(điều chỉnh)
Power output 1-3W(điều chỉnh),ở bước 1dB
SHG >52dBc
Mã hóa AES128/256bit
chòm sao QPSK,16QAM,64QAM
FEC 1/2,2/3,3/4,5/6, 7/8
Guard Interval 1/32,1/16,1/8,1/4
Nhà cung cấp 2K
Flatness Full band≤2dB,8MHz≤0,5dB
AV Interface HD/SDI(phải chọn một)
CNR(cân nặng) 58dB
SNR trường dốc(không có trọng lượng) ≥50dB
Analog Audio
Balanced audio input range Vmax=±15V
Unbalanced audio input range Vmax=3Vpp
HD interface SDI/HD(lựa chọn duy nhất)
Encryption AES 128/265 chút / ALLTECH Cơ bản xáo trộn
Tiêu chuẩn SMPTE 425M (Cấp A và Cấp B), SMPTE 424M, SMPTE 292, SMPTE 259M-C SMPTE 272M SMPTE 299M
Phạm vi đầu vào 800±80(mV)
Phiên bản HD 1.3
Giao thức HDCP Có
Hỗ trợ mã hóa
AV rate 64, 96,112,128,160,192,224,256,320,384Kbps(điều chỉnh)
Chế độ mã hóa âm thanh MPEG1 Layer2
CBER <2.0E-4
Độ phân giải video Tối đa 1920×1080P/I@60P
Mã hóa video H.264
Video rate 500kbps-16.68Mbps(tự động thích ứng)
Định dạng YCbCr4:2:2
Nhiệt độ hoạt động -25oC ~ 55oC
Nhiệt độ bảo quản -40oC~70oC
Khoảng cách 1-40km Khoảng cách LOS(trên sóng)
1-2km NLOS distance(Mặt đất với mặt đất)