570Mhz COFDM digital FPV video transmitter for CVBS Analog camera

This is the latest digital wireless video transmission. It uses the same compression coding technology as COFDM or DVB-T, which can effectively ensure the stability of the transmission signal. The picture is as clear as the digital TV set-top box at home.

570Mhz COFDM digital FPV video transmitter for CVBS Analog camera
570Mhz COFDM digital FPV video transmitter for CVBS Analog camera

Its working central frequency can be customized from 170Mhz to 860Mhz. This is 570Mhz COFDM digital FPV video transmitter for CVBS analog camera.

570Mhz COFDM digital FPV video transmitter VTX VRX
570Mhz COFDM digital FPV video transmitter VTX VRX

آ 570MHz COFDM digital FPV video transmitter for CVBS analog cameras is a specialized wireless transmission device designed to convert analog video signals (from a CVBS camera) into a digital format and transmit them over radio frequencies using COFDM (مولتی پلکسینگ تقسیم فرکانس متعامد کد شده) مدولاسیون. This technology is widely used in applications requiring robust, low-latency video transmission in challenging environments, such as drones, وسایل نقلیه, or remote monitoring systems. Below is a detailed breakdown of its key components and functionalities:

570Mhz frequency 2M bandwidth default setting on FPV VRX
570Mhz frequency 2M bandwidth default setting on FPV VRX

1. Core Technology: مدولاسیون COFDM

  • COFDM splits data into multiple subcarriers, enhancing resistance to multipath interference and signal degradation, especially in non-line-of-sight (NLOS) scenarios like urban areas or forests.
  • این 570MHz frequency band falls within the UHF range, offering a balance between penetration and coverage. This band is often used for long-range transmissions (به عنوان مثال, 10-50 کیلومتر) and is less prone to interference compared to higher frequencies like 2.4 GHz.
570Mhz COFDM digital FPV video transmitter VTX default setting
570Mhz COFDM digital FPV video transmitter VTX default setting

2. Integration with CVBS Analog Cameras

  • CVBS (Composite Video Baseband Signal) is a standard analog video format. The transmitter digitizes this signal using encoders like H.265 or MPEG-2, compressing the data to reduce bandwidth while maintaining image quality (به عنوان مثال, 720×576 resolution).
  • مثال: این SG-H.265 COFDM transmitter supports CVBS input and achieves low-latency encoding (به عنوان مثال, 40 ms end-to-end delay), critical for real-time FPV applications.
570Mhz digital FPV VTX 3WPA 50KM with configuration tool
570Mhz digital FPV VTX 3WPA 50KM with configuration tool

3. Key Features and Performance

  • زمان تاخیر کم: Essential for FPV (نمای اول شخص) کنترل کنید, with delays as low as 40–600 ms depending on compression and modulation settings.
  • Adaptive Bandwidth: پشتیبانی از نوار باریک (1–8 MHz) configurations to optimize spectrum usage and transmission stability.
  • Robustness: Designed for high-speed mobility (تا 240 کیلومتر در ساعت) and harsh environments, with features like AES encryption for secure data transmission.
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4. برنامه های کاربردی

  • Drones/UAVs: Enables real-time HD video feeds for surveillance or cinematography, even in non-line-of-sight conditions.
  • Vehicles/Public Safety: Used in police, آتش نشانی, or military vehicles for live situational awareness.
  • مانیتورینگ از راه دور: Deployed in industrial or disaster-response scenarios where wired connections are impractical.

5. ملاحظات فنی

  • تبدیل سیگنال: Analog-to-digital conversion must minimize noise to preserve video quality.
  • Power and Range: Higher transmission power (به عنوان مثال, 10–30 W) extends coverage but increases power consumption.
  • Environmental Factors: باران, شاخ و برگ, or urban structures may attenuate 570 MHz signals, though less severely than higher frequencies36.

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