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    Yours is the best I have found so far.
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Zero Latency COFDM Transmitter HD Video Downlink and Data Uplink

Place of Origin Shenzhen, China
Brand Name SUNTOR
Certification FCC, CE, RoHS
Model Number ST20NPT
Minimum Order Quantity 1 set
Price Negotiation
Packaging Details Plastic Box
Delivery Time 7-15 days
Payment Terms T/T, Western Union, Paypal
Supply Ability 1000 set/ month

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Product Details
Modulation TDD-COFDM Power DC12V
Net Weight TX/RX 146/68g Encryption AES-256
Mode Point To Point RF Power 33dBm
Sensitivity -100dbm@4Mhz / -95dbm@8Mhz Distance 20km
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Product Description

Zero Latency HD Video Downlink and Data Uplink



Specs Sheet


User Manual





All professional UAV HD applications now share the same requirement – a robust wireless HD video downlink. SUNTOR, delivers excellent HD image quality, zero latency, and the highest levels of robustness. SUNTOR employs TDD-COFDM technology, widely regarded as the industry standard in the broadcast and cinematography markets for UAV. It’s 2.4GHz radio, 2×2 MIMO and software manual channel selection ensures resilient data connectivity, free from interference, specifically from UAV controls links. The zero-latency transmission offers live, real-time imaging for broadcast, inspection, and mission critical applications. SUNTOR’s all-in-one features supports RC, Pixhawk and HD Video transmission into one link. Simply Plug-and-Fly!

SUNTOR ST20NPT is the Perfect tool for High end Drone and long range transmission application(20km), allowing a Zero delay with Mavlink gimbal controls and the ability to keep the live link in very noisy environments surrounded by other Drones and wireless communications.



Key Features


  • True full HD 1080P at 60fps
  • Long range 65,600ft/20,000m range (LoS)
  • Zero latency, real-time video
  • Stability boost mode with 4/8Mhz channel bandwidth
  • Extremely resilient 2.4GHz. digital link with AES 256
  • Encrypted and secured
  • Supply TTL serial data interface for
  • Gimbal control over Futaba® S.Bus
  • Plug-and-Fly, out of the box setup and operation




  • Aerial video production and cinematography
  • Industrial and commercial inspection
  • Surveillance and security
  • Real estate assessment and supervision
  • Search and rescue
  • First responder situation evaluation
  • Crowd control
  • UAV enthusiast recreation



Power On


After checking all the connections are in good condition, turn on the the IP Camera, PC, transmitter and receiver. The indicators will bright and the whole system starts work.


Zero Latency COFDM Transmitter HD Video Downlink and Data Uplink 0Zero Latency COFDM Transmitter HD Video Downlink and Data Uplink 1



TX Indicators Definition

Zero Latency COFDM Transmitter HD Video Downlink and Data Uplink 2


After powering on, the devices will boot normally. Then the indicators’ normal state will be as follows:


(1) Indicator light 1, 2, 3 and 6 will turn on in green color.

(2) After one second, indicator light 1(green), 2(green), 3(green) and 6(blue) will start to blink.

(3) After the startup completed, indicator light 1(green), 2(green), 3(green), 5(green) and 6(blue) will keep constant bright. Indicator light 4(red) will blink frequently.


RX Indicators Definition


Zero Latency COFDM Transmitter HD Video Downlink and Data Uplink 3




When the device begin to normally start work, all indicators status is described as follow:


1) After powering on, light 1,2,3 turn green, light 6 turns blue and light 8 turns red.

2) After 1 second, light 1(Green), 2(Green), 3(Green) and 6(Blue) start to blink. Light 5 (Green) and 8(Red) will keep constant light.

3) After the starting completed. Light 1(Green), 2(Green), 3(Green), 4(Red), 6(blue) and 8(Red) will keep constant bright. By the way, when you use the the ETH1, 7 (Green) will blink frequently.



Distance (Outdoor) 65,600ft/20,000m range (LoS)
Transmission Delay No delay(Not video compression)
Radio Frequency 2.402-2.482 GHz
Channel Selection Manual frequency selection
(Ensure the data transmission stable)
Video Formats 1080p/60, 1080p/50, 1080i/60, 1080i/50, 1080p/30, 1080p25,1080p/24, 720p/60, 720p/50, 525i/60, 625i/50
Encryption AES-256
Operating Temperature -45~+85 Celsius



Video Interface Mini ETH Mini ETH
Antenna Connectors SMA*2 SMA*2
Power Connector XT30PW-F XT30PW-F
Power Switch Pull-type switch(4Pin) Pull-type switch(4Pin)
Power Input DC7-18V DC7-18V
Dimensions 76*73*24mm 68×48x15mm
Weight 146g 68g


Package List


Zero Latency COFDM Transmitter HD Video Downlink and Data Uplink 4