military cofdm wireless signal transmitter

What is a military cofdm wireless signal transmitter?

A military COFDM wireless signal transmitter is a device that can send and receive audio and data signals using the COFDM (コード化された直交周波数分割多重化) digital modulation technique. COFDM is a similar technology to DVB-T Europe digital tv standard, which can highly effectively compress the video and audio in TS stream by encoder and modulator, and at the receiver with decoder and demodulator chipset, it can perfectly get the real living video, オーディオ, and data from the transmitter to the receiver.

This approach makes the signal more resistant to interference, ノイズ, and fading, making it appropriate for military applications.

Military cofdm wireless signal transmitter transmission distance

COFDM is the same as terrestrial digital TV stations. As long as the transmitter is placed high enough and within the line of sight, and there are no obstacles to the transmitter and receiver, it can support distances from 1 までのキロ 200 キロ.

PA	ロス	NLOS
500mW	>10キロ	<300メートル
1W	>30キロ	<500メートル
5W	>60キロ	<1500メートル
20W	>120キロ	<3000メートル
50W	>200キロ	<5000メートル
100W	>250キロ	<10キロ

Military cofdm wireless signal transmitter Feature

• Cheaper
• 低遅延
• Easy operation
• Encryption
• Support frequency change to avoid jammer

Military cofdm wireless signal transmitter Types

最安: For the cheapest model, we consider that some transmitters are installed on drones, and they may hit trees or other obstacles at any time and cause them to fall. Because they are cheap, they can be purchased in large quantities and used as consumables. If lost, they can be replaced. The receiver can be repaired with other transmitters for continued use. COFDM-912T.

HDMI 1080P: The cheaper model above only supports 720P resolution and CVBS composite camera input. If you have higher requirements for video resolution, you are recommended the COFDM-908T with HDMI input and output to support 1080P. COFDM-908T.

Lowest Latency: For some medium-sized and large UAVs, the manufacturing cost of the aircraft is relatively high, and the transmitter needs to be made with ultra-low latency. The delay of ordinary wireless video transmission systems will reach 200~400 milliseconds, but the ultra-low delay wireless video transmission system can reach an astonishing 30~40 milliseconds, which is very suitable for high-speed and high-cost drones to ensure It can detect obstacles in time and make corresponding adjustments. Vcan1729.

HDMI + CVBS both video cameras: In some drones or other security situations, two cameras are installed, which requires our transmitter to have the ability to transmit two videos at the same time. For customers with this need, you can choose our Vcan1726.

Ethernet RTSP output to computer: Some customers also require that the receiver can not only output images to a regular monitor but also output images to a computer in real-time. この場合, the receiver is required to have a network port output that supports ONVIF and RTSP protocols. You can even play the launcher’s live video using a VLC player. Vcan1726.

Signal Relay / リピータ / エクステンダー: In some special applications, such as when there are buildings, 山, or trees blocking the signal, we can place relays in the middle of the obstacles to extend the transmission distance and increase the signal strength of the transmission. Vcan1870.

Solution for two-way transceiver demand: Everyone knows that CFODM is a one-way transmission system that can transmit video, オーディオ, and data from the transmitter to the receiver, but it cannot provide signal interruption or packet feedback. しかし, in order to solve customer needs for two-way transmission, engineers can also make two sets of COFDM transceiver systems into one, so that the transmitter also has the function of a receiver, and the receiver also has the function of the transmitter. This is the COFDM transceiver. Vカン 1886.

UDP broadcast function: Vカン1816.

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