Click to enlarge
Home » Unmanned System Products » Data Link
MYD P39 High Performance Unmanned Vehicle Map Data Remote Integrated Radio
Back to products
MYD-T900-40AQ-SMA (Quad Serial Ports) 100km+ Transmission And Receiver Hopping Radio

Data Link

In the telecommunications field, a data link serves as a medium to connect two locations, facilitating the transmission and reception of digital information. It can also refer to a suite of electronic components, encompassing transmitters, receivers (both classified as data terminal equipment), and interconnected data telecommunication circuits. These data are managed by link protocols, which enable the transfer of digital data from a data source to a data receiver.
A data chain, on the other hand, is a tactical wireless data communication system that operates across ground-space, space-space, and ground-ground scenarios. It transmits formatted digital information in real time using a bit-oriented approach, leveraging technologies such as modulation/demodulation, encoding/decoding, anti-interference, networked communication, and information fusion—all in accordance with specified information formats and communication protocols. The basic components of a data chain can be condensed into three core elements: terminal equipment, transmission equipment, and communication specifications.
The functions of a data chain include map transmission, data transmission, networking, air-to-ground video transmission, air-to-ground bidirectional data transmission, as well as remote control and telemetry for unmanned aerial vehicles (UAVs) and other aircraft. Additionally, it supports UAV air-based networking and UAV communication relay. Its application scope covers various platforms such as multi-rotor aircraft, fixed-wing UAVs, unmanned helicopters, missiles, and guided projectiles.
Categories: , , , ,
Description

Main Technical Specifications

  • Working frequency: 400-450MHz;
  • Spread spectrum mode: FHSS;
  • Frequency band selection: depending on the different shielding frequency points;
  • Encryption: double, static secret key; configurable;
  • Sensitivity: -108dBm@172kbps;
  • Output power: 1W (configurable, from 100MW to 1W);
  • Data interface: RS232/RS485/RS422;
  • Baud rate of serial port: 300bps～230.4Kbps(asynchronous serial);
  • Air speed: 115200,172000,230400bps configurable;
  • Networking mode: point to point, point to multipoint, storage and forwarding relay, roaming, TDMA;
  • Diagnostic port: one, RS232;
  • Diagnosis contents: power supply voltage, temperature, RSSI, real-time event recording;
  • Working voltage: 10V ~ 30VDC;
  • Power consumption: no more than 18W;
  • Connector: Antenna: SMA; one; Data: minidb9 (×2).
  • Environmental conditions: ambient temperature: – 40 ℃ ~ + 85 ℃;
  • Environmental humidity: 5-95%, non condensing.
  • Total weight: 220g;
  • Size: no more than 122mm×70mm×42mm.

Related products

MAST-09 Radio Altimeter Detection Unit

The MAST-09 Radio Altimeter Detection Unit is a compact, aerospace-grade component that monitors, validates, and processes radio altimeter data for aircraft. It filters interference, cross-references data with other flight sensors, and detects faults (e.g., signal loss, calibration drift) to deliver reliable terrain-relative altitude info—critical for safe takeoff, low-altitude flight, approach, and landing, even in low visibility. Built to meet strict aerospace standards (e.g., DO-160, DO-178), it withstands extreme environmental conditions, suiting commercial and military aircraft.

MASS-06 Continuous Echo Simulation Excitation System of Radio Altimeter

The MASS-06 Echo Signal Simulation Excitation System, hereinafter referred to as the "Simulation Excitation Source", is a dedicated equipment designed for the hardware-in-the-loop (HIL) simulation of radio altimeters. It serves as a key component in replicating real-world echo signal scenarios, providing targeted excitation signals that enable the radio altimeter to operate under simulated physical conditions—effectively bridging the gap between theoretical testing and actual operational environments to validate the altimeter’s performance, responsiveness, and reliability.

MASS-15 Continuous Echo Simulation Excitation System of Radio Altimeter

The MASS-15 Continuous Echo Simulation Excitation System of Radio Altimeter is a specialized testing equipment designed to support the performance verification, calibration, and development of radio altimeters. It focuses on generating stable, continuous echo signals that accurately replicate real-world altitude-related signal environments—including varying echo amplitudes, frequency characteristics, and delay parameters corresponding to different flight altitudes and terrain conditions. By providing these realistic simulated excitation signals, the system enables radio altimeters to operate under controlled laboratory conditions, allowing engineers to test key functions such as height measurement accuracy, continuous tracking stability, and anti-interference capability. Its reliable continuous echo simulation function not only replaces the need for complex and costly field tests but also ensures consistent, repeatable test results, making it an essential tool for ensuring the reliability and performance of radio altimeters in practical aviation applications.

MDG-100 Radio Height Setting Device

The MDG-100 radio altimeter operates in the C-band and adopts a pulse Doppler working system. Its sensitive device is of the heterodyne type, and the circulator at the antenna terminal uses a transceiver common-mode design. With mature technology, this altimeter is installed on missiles and serves as a control component for altitude fuzes. It features capabilities such as high burst altitude, strong adaptability to high falling speeds, and excellent performance in resisting ground clutter and sea clutter. Additionally, it employs pseudo-random pulse modulation technology: the pulse period varies randomly within a specified range, making it difficult for jammers to identify the initial modulation pulse of the fuze signal and further predict the delayed pulse. This design effectively enhances the altimeter’s resistance to active interference.

Radio Altimeter MY-3001M

The MY-3001m radio altimeter is a radar altimeter developed for the Rainbow XX UAV by a specific institute. It is widely used in UAVs to measure the altitude relative to the sea surface or the ground. This altimeter incorporates a linear modulation coefficient technology adaptable to altitude changes and a narrow-band receiving technology for echo signals, which enhances the product’s resistance to active interference. It also adopts coherent local oscillator mixing, delivering superior performance in resisting synchronous interference, and employs echo signal spectrum front-edge detection technology to improve tracking accuracy. Additionally, it features a three-dimensional design based on serialization, standardization, and modularization, endowing the product with excellent inheritance, maturity, and reliability. While retaining the closed-loop tracking system, the MY-3001m radio altimeter further adopts digital control technology, microwave integration technology, and hybrid integration technology to achieve product modularization. Moreover, its receiver is equipped with dual filters, which further boosts the product’s anti-interference capability.

MY-70D Anti Jamming Radio Altimeter

Operating in the C-band, the MY-70D radio altimeter employs a frequency-modulated continuous wave (FMCW) operating system and incorporates closed-loop tracking measurement technology, equipping it with the capability to resist same-frequency asynchronous interference. This ensures that when multiple aircraft take off and fly simultaneously, their altimeters do not interfere with one another. To achieve resistance against active interference, the altimeter adopts a range of measures, including anti-blocking, anti-burnout, power control, beam control, frequency agility, and frequency modulation (FM) technology. Furthermore, it features silent power supply control for its microwave components; its antenna is fitted with a band-pass filter, and a customized radome with frequency-selective functionality is utilized—these design elements enable the altimeter to achieve a wave transmission rate of ≥85% for the operating frequency within the band and less than 10% for out-of-band frequencies, thereby realizing stealth capabilities.

Small Radio Altimeter MY-28A、MY-24(XXX-28A、XXX-24)

The MY-28A and MY-24 (also designated as XXX-28A and XXX-24) are miniaturized C-band full-function radio altimeters that comply with aerospace standards. Serving as key components for the control of the longitudinal altitude channel, they are specifically designed for a certain type of UAV target. These altimeters possess excellent anti-interference performance and electromagnetic compatibility, enabling them to accurately measure altitude relative to the sea surface or the ground.
The MY-28A and MY-24 are developed following the three core design principles of serialization, standardization, and modularization. This design approach endows the products with strong design inheritance, ensuring they are mature and reliable in operation. To date, these two models of radio altimeters have been widely applied in multiple types of aircraft, with their total deployment quantity exceeding 800 units.

MDG-300 Radio Altimeter

The MDG-300 radio height-fixing device operates in the C-band and adopts a pulse compression system. Its sensitive component is of the heterodyne type, and the circulator at the antenna terminal uses a transceiver common-mode design. Prior to missile launch, the height-fixing device is powered on, and it undergoes self-check and height presetting via the communication interface. After the missile is launched, the radio frequency (RF) module is activated, and a gate is set in accordance with the preset height. When the preset height is reached, the device outputs height-fixing command information and telemetry data. The MDG-300 height-fixing device features mature technology: its pulse compression technology can enhance the altimeter’s height measurement performance, and it has the characteristic of a wide height measurement range. Additionally, the digital pulse compression function based on FPGA (Field-Programmable Gate Array) endows it with advantages such as small size, low power consumption, and low cost.