The XH-MK22/MK55 is an all-in-one integrated UAV HD video data link system following the Maestro series design. Adopting OFDM modulation with 800M/1.4G/2.4G multi-band support, it transmits HD video, serial data and SBUS flight control signals simultaneously. The MK22 delivers 22km LOS range while the MK55 reaches 55km. With only 150g air unit weight and 8.5W low power consumption, plus tripod-mountable ground unit, it is ideal for small & medium industrial UAVs, inspection, aerial survey and portable reconnaissance.

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Description

Product Overview

The XH-MK22/MK55 all-in-one UAV video data link continues the Maestro series wireless HD transmission design and user experience. Featuring powerful functionality and high integration, it transmits HD video, serial data and SBUS flight control signals simultaneously, completing video return, telemetry interaction and flight control all on a single link.

Adopting OFDM modulation technology with excellent multipath and interference resistance, it supports selectable 800MHz/1.4GHz/2.4GHz frequency bands. The XH-MK22 achieves 22km LOS transmission range, while the XH-MK55 extends to 55km. The air unit features lightweight low-power design at only 150g, greatly saving payload and battery life. The ground unit is equipped with a standard 1/4 screw port for universal tripod mounting, and can quickly access UAV video and data via dedicated cables for convenient on-site deployment.

Core Advantages

All-in-one Triple-link Transmission: Single system carries HD video, serial data and SBUS flight control signals simultaneously, eliminating the need for multiple devices and simplifying airborne wiring
Two Range Options: 22km and 55km power models to cover different mission radius requirements with cost-effective selection
OFDM Strong Anti-interference: OFDM broadband modulation with excellent multipath fading resistance, ensuring stable transmission in complex suburban and hilly environments
Lightweight & Low-power: Only 150g air unit weight and ≤8.5W power consumption with minimal impact on small & medium UAV payload and endurance
Industrial Wide-temperature Reliability: Operating temperature from -40℃ to +70℃ for extreme outdoor environments and all-weather reliable operation
Easy & Quick Deployment: Standard 1/4 screw port compatible with universal tripods for plug-and-play use and rapid on-site communication setup

Technical Specifications

Category	Item	Specification
Basic Models	Model Number	XH-MK22 / XH-MK55
Basic Models	Transmission Range	MK22: 22km (LOS) MK55: 55km (LOS)
RF Parameters	Operating Frequency	800MHz / 1.4GHz / 2.4GHz
	Channel Bandwidth	5MHz / 10MHz / 20MHz
	Modulation	OFDM
	Output Power	MK22: 30dBm ± 1dB MK55: 33dBm ± 1dB
	Receiver Sensitivity	≤ -92dBm
Transmission Performance	Air Bitrate	Max. 30 Mbps
Transmission Performance	Transmission Content	HD video + Serial data + SBUS flight control signal
Interface Parameters	Serial Port	Air unit: RS232×1 + TTL×1 Ground unit: RS232×2
	Flight Control Port	Air unit: SBUS_OUT×2 Ground unit: SBUS_IN×2
	Network Port	Air unit: 4-pin network interface (with dedicated cable) ×1 Ground unit: RJ45 Ethernet port ×1
	Power Port	Air unit: 4-pin ×1 Ground unit: XT30/N-Cut battery port ×1
Physical & Environmental	Antenna Type	Air unit: Whip antenna, 2.5dBi Ground unit: Panel antenna 12dBi + Fiberglass antenna 5dBi
	Power Supply Range	DC 9-28V (3S~6S battery compatible)
	Power Consumption	≤ 8.5 W
	Dimensions	Air unit: 100 × 63 × 22 mm Ground unit: 256 × 256 × 94 mm
	Weight	Air unit: 150 g Ground unit: 1.9 kg
	Operating Temperature	-40℃ ~ +70℃
	Storage Temperature	-40℃ ~ +85℃
	Humidity	5% ~ 95% non-condensing

Application Scenarios

HD video and flight control link for small & medium industrial and inspection UAVs
Wireless video transmission for aerial survey, mapping and security reconnaissance UAVs
Remote control and video return for small UGVs and ground robots
Portable wireless video link for emergency rescue and on-site investigation
HD data link for educational research and open-source UAV projects

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