Come acquistare il trasmettitore video COFDM?

Come acquistare il trasmettitore video COFDM a lungo raggio?

How to buy video Transmitter for your project? Here is one buyer inquiry VCAN for COFDM Video transmitter, Q is buyer’s question, A is VCAN reply, if you are interesting, please read it or ask us any question.
Q:  Hello could you tell me what is the price of, HDMI COFDM senza fili Immagine trasmissione video ricetrasmettitore trasmettitore, and with recevier we need to use with this items?
UN: I will send to your email
Q: Grazie
UN: si prega di controllare, please ask me if you have any question on technology or order
Q:  For COFDM-903T, is it transmitter and receiver for the price?  if not which receiver we need to use?
For COFDM-904T TX and RX included… for TX battery is inside or we need to fix extra battery?
 
With antenna we need to use on the RX for have long range transmission? 10km?
UN: I will reply you soon
this antenna
How to buy video transmitter of COFDM? 1
How to buy video transmitter?
immagine COFDM-221R HD Wireless Video ricevitore COFDM AV 1080P trasmissione Transceiver CVBS 170 ~ 900Mhz
this is receiver
Q: receiver for 903T?
UN: for 902t 903t 904t
Q: ok but for COFDM-904T TX and RX is included in price?
UN: Price has including antenna, If you agree better antenna, almost USD200 one piece, 902t 904T support 20km
Q: COFDM-902T with receiver and good antenna goes at 10km?
UN: 10km ok, dall'aria al suolo
Q: yes that is what i need, what is the difference between 902 e 904 ?
UN: customer installed antenna for receiver
COFDM Transmitter test
how to buy video transmitter?
COFDM-902T and COFDM-904T almost same, but COFDM-904T is more reliable,
Q: i dont see HDMi input on COFDM-904T
UN: 904 has hdmi
Q: not on the pictures
UN: I will check and send you soon.
one customer tested sample and place repeat order soon
How to buy video transmitter of COFDM? 2
Please check your email for HDMI input
How to buy video transmitter of COFDM? 3
Q: ok .. the pictures on your website is no up to date
UN: sì
Q: I see on your picture hdmi now.
UN: website picture is only one side
Q: Could you send me picture of your RX?
UN: buy video transmitter
this is RX
Q: we are interested to by 4-5 TX… is it working all with one RX if it’s not working in same time
UN: At different frequency at RX, RX frequency can change by remote control
Q: so i think i will buy one set 904 TX RX with big antenna for long range… if it s working well i will buy 4-5 more TX…
UN: now antenna is 1 metro, for sample is ok, what is your post code? I will check shipping cost
Q: 1823 Glion Switzerland
UN: what frequency do you need? or use our default?
Q: what is our choice for 904?
UN: shipping cost by DHL, USD 69
904T is recommended
902T is also ok
Q: You say 904 is better. i choose this one, but which frequency he use? you don’ t give me size of 904 TX?
UN: 904t default frequency is 503Mhz, 503, 509, 515, 521Mhz to switch loop, not including battery
Q: Il 902 is 170mhz?
UN: From 170Mhz~900Mhz, what you need, we can modify, Box size is 20 X 10 x 5mm
buy video transmitter
Q: ok. I need to check the law of government if this frequency is ok and i contact you soon after… is it available in stock’
UN: 3~7 days to modify the frequency, need test long time, frequency different, PAPÀ (ingranditore) hardware also need change
Q: ok. let me check frequency and i come back to you soon
UN: sì, it is very important
If you are interesting on buy video transmitter, sentiti libero di contatto con noi.

Panoramica

Il COFDM Wireless Video Transmitter and Receiver System è un prodotto ad alte prestazioni, long-range video transmission solution specifically designed for UAV, droni, mobile vehicles, trasmissione, and professional field applications. Usando Multiplexing codificato a divisione di frequenza ortogonale (COFDM) tecnologia, questo sistema fornisce stabile, real-time high-definition (HD) video and audio transmission su lunghe distanze, anche in impegnativo senza linea di vista (NLOS) ambienti.

With support for multiple video input formats including HDMI, SDI, and CVBS composite video, the system is versatile and compatible with a wide range of cameras, videocamere, and drones. Coupled with high-quality H.264/MPEG-2 compression, the COFDM system ensures clear, smooth images with accurate color reproduction, minimal artifacts, e latenza ultrabassa suitable for live monitoring, Ricognizione UAV, ispezioni industriali, e radiodiffusione.

This system is ideal for professional users seeking sicuro, affidabile, and configurable wireless video links. The transmitter and receiver can be customized to specific frequency ranges, transmission distances, and power requirements, garantendo regulatory compliance and optimized performance for each project.

Caratteristiche principali

  1. High-Definition Real-Time Video Transmission
    • HDMI input supports cameras like GoPro, DSLR, and professional camcorders.
    • Full HD 1080P and 720P composite CVBS video input supported.
    • H.264/MPEG-2 encoding ensures minimal bandwidth usage without sacrificing image quality.
  2. Modulazione COFDM avanzata
    • COFDM assicura robust performance in multipath, ad alta velocità, and interference-prone environments.
    • Modulation types: QPSK, 16QAM, 64QAM.
    • Provides stable Trasmissione NLOS with strong diffraction and low interference.
  3. Trasmissione a lungo raggio
    • Linea di vista (IL) distances exceed 15 km, while ground and NLOS distances typically range from 600 metri a 10 km, depending on antenna configuration and environment.
    • Optional high-gain antennas extend the range further for professional deployments.
  4. Latenza ultrabassa
    • Transmission delay typically under 300–500ms, garantendo real-time feedback for drone operations, eventi dal vivo, or critical monitoring tasks.
  5. Flexible Frequency and Power Options
    • Default frequencies for COFDM-904T: 503 MHz, 509 MHz, 515 MHz, 521 MHz. Custom frequencies from 170 MHz a 900 MHz o fino a 1 GHz are available.
    • Adjustable RF output power from 1W to 5W depending on required transmission distance.
    • Wide bandwidth options: 2 MHz, 4 MHz, 6 MHz, 7 MHz, 8 MHz.
  6. Design compatto e robusto
    • Dimensioni del trasmettitore: 20 × 10 × 5 mm (customizable for different models).
    • Lightweight and portable, Ideale per gli UAV, droni, and mobile setups.
    • Shock-resistant and vibration-proof for harsh operational environments.
  7. Supporto multi-ricevitore
    • A single transmitter can stream to multiple receivers operating at different frequencies.
    • Receivers compatible include COFDM-221R, COFDM-902T, COFDM-904T, supporting Android, iOS, o monitor portatili.
  8. Sicurezza e crittografia
    • AES 128-bit encryption ensures secure, private transmission.
    • Optional user password protection for authorized access only.
  9. Battery and Power Options
    • Transmitters can be powered via internal batteries (where applicable) or external DC input.
    • Receivers support DC 5V–36V input for vehicle-mounted or portable operation.
  10. Interfaccia intuitiva
    • Easy-to-use frequency selection via remote control.
    • Multiple output options on receivers, incluso HDMI, USB, and Wi-Fi for mobile device connectivity.

Specifiche tecniche

Parametrospecificazione
Tipo di modulazioneCOFDM (QPSK, 16QAM, 64QAM)
Compressione videoH.264 / MPEG-2
ingresso videoHDMI, HD-SDI, Composito CVBS
Potenza di uscita RF1W (predefinito), up to 5W optional
Frequenza operativa170 MHz – 900 MHz (personalizzabile), predefinito 503 MHz
Larghezza di banda2 / 4 / 6 / 7 / 8 MHz
Distanza di trasmissioneIL > 15 km, Terreno > 1 km, NLOS > 600 m
Ritardo del sistema≤300–500 ms
Tasso di errore bit≤10^-6
Risoluzione video1080P / 60 fps; compatibile con le versioni precedenti 720P/480P
crittografiaAES128 (opzionale)
Dimensioni (TX)20 × 10 × 5 mm
Peso (TX)0.2 kg (a seconda del modello)
Alimentazione elettricaDC 5V–36V

applicazioni

  1. Trasmissione video drone e UAV
    • Real-time HD video for aerial filming, rilevamento, mappatura, or search-and-rescue.
    • NLOS capability ensures stable transmission in urban or forested environments.
  2. Radiodiffusione e produzione multimediale
    • Portable or vehicle-mounted live transmission for news reporting, gli sport, and events.
  3. Monitoraggio industriale
    • Monitoraggio remoto delle condotte, cantieri, e infrastruttura critica.
  4. Security and Emergency Response
    • Provides live video feeds for police, antincendio, or disaster relief operations.
  5. Mobile Applications
    • Vehicle-mounted or handheld units for temporary setups and field monitoring.

Configurazioni opzionali

  • Antenne ad alto guadagno: Extend range up to 20 km or more depending on terrain.
  • Personalizzazione della frequenza: Compliance with local regulations and optimal interference-free operation.
  • Battery Upgrades: Extended battery life for mobile or UAV use.
  • Multiple Receiver Support: Allows several receivers to operate simultaneously on different frequencies.
  • OEM/ODM Solutions: Custom transmitter housing, frequenza, or interface tailored to project needs.

TM-1040 COFDM Wireless Transmitter and Receiver system offers a versatile, soluzione ad alte prestazioni for professionals who require lungo raggio, trasmissione video HD in tempo reale with secure and reliable operation. Whether used in UAV applications, sorveglianza mobile, o radiodiffusione, questo sistema fornisce bassa latenza, high-quality imaging, e opzioni di distribuzione flessibili to meet the most demanding requirements.

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