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Home » Unmanned System Products » MAST-09 Radio Altimeter Detection Unit
MASS-21 Echo Simulator of Radio Altimeter
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MAST-11 Equivalent Altitude Simulator of Radio Altimeter

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.

Categories: Atmospheric Treatment, Data Communication, Partsassembly, Radar Detection, Scene Simulation
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  • Description
Description

Product Description

  • Working center frequency: 4.3GHz;
  • Maximum allowable bandwidth: 200MHz;
  • Maximum allowable input power: 25dBm;
  • Simulation height: 3M, 5m, 7m, 10m, 20m, 50m, 100m, 300m, 520m;
  • Simulation height accuracy: ≤ 0.2m (10m and below) or 1% HM (20m and above);
  • Fixed attenuation of circuit: 40dB;
  • Loop adjustable attenuation (including fixed attenuation): 40 ~ 120dB;
  • Adjustable attenuation precision: 2dB;
  • Adjustable attenuation step: 1dB;
  • Height switching time: no more than 1ms;
  • In band fluctuation: ±3dB;
  • Spurious suppression: not less than 60dB;
  • Control mode: local, network port, serial port control;
  • Isolation: ISO>60dB;
  • Volume and weight: 450×430×170 mm, no more than 20kg;
  • Working voltage: 220±15%V;
  • Working temperature: 0~55℃;
  • Storage temperature: – 30~55℃.

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Small Radio Altimeter MY-1000

The MY-1000 altimeter is a radar altimeter specially designed for a specific type of target missile aircraft; as a compact, full-function radio altimeter that complies with aerospace standards, it serves as a key component for longitudinal altitude channel control and can be widely used in cruise missiles and UAVs to measure height relative to sea level or the ground. The MY-1000 adopts linear modulation coefficient technology adaptive to height changes and echo signal narrow-band receiving technology to enhance the product’s resistance to active interference, uses coherent local oscillator mixing to achieve superior performance in resisting co-frequency asynchronous interference, employs echo signal spectrum front detection technology to improve tracking accuracy, and follows the three design principles of serialization, standardization, and modularization—endowing it with good product inheritance, maturity, and reliability.

Mini Radio Altimeter MY-4001

The MY-4001 series altimeter represents the latest generation of radar altimeters. While complying with aerospace standards, it boasts an extremely compact size, with external dimensions measuring a mere 86mm × 52mm × 25mm. As a full-featured radio altimeter, the MY-4001 serves as a core component for the control of the longitudinal altitude channel. It finds wide application in flying missiles and unmanned aerial vehicles (UAVs) to measure altitude relative to the sea surface or ground.
Employing a linear frequency-modulated continuous wave (LFMCW) measurement system, the MY-4001 exhibits outstanding characteristics, including high precision, strong anti-interference capability, excellent battery compatibility, and stable, reliable operation. These attributes make it particularly well-suited for radar altitude measurement in ultra-light and ultra-small aircraft. For interface output, it adopts RS422 and CAN protocols, which effectively enhances the reliability of the product's data transmission.

Full Function Radio Altimeter MMK-4

The MMK-4 altimeter is a full-function radio altimeter that meets aerospace standards; serving as a key component for longitudinal altitude channel control, it can be widely applied in cruise missiles and aircraft to measure altitude relative to the sea or ground. The MMK-4 adopts linear modulation coefficient technology adaptive to height changes and echo signal narrow-band receiving technology to enhance the product’s resistance to active interference, uses coherent local oscillator mixing to achieve superior performance in resisting co-frequency asynchronous interference, employs echo signal spectrum front detection technology to improve tracking accuracy, and follows the design principles of serialization, standardization, and modularization—endowing it with good product inheritance, maturity, and reliability.

MDG-200 Radio Altimeter

The MDG-200 radio height-setting device operates in the C-band and adopts a monopulse working system. Its sensitive component is of the heterodyne type, and the circulator at the antenna terminal uses a transceiver common-mode configuration. Prior to missile launch, the height-setting device needs to be powered on; it then performs a self-check and completes height setting via the communication interface. After the missile is launched, the radio frequency (RF) module is activated, and a gate is set based on the preconfigured height. When the preset height is reached, the device outputs height-setting command information and telemetry data. The MDG-200 height-setting device features mature technology: the monopulse design enhances the altimeter’s height measurement performance, and the device also has the characteristic of not being affected by the carrier’s speed.

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.

Micro Radio Altimeter MY-2001

The MY-2001 altimeter is a new-generation radar altimeter designed for small missile aircraft; as a compact, full-function radio altimeter that meets aerospace standards, it serves as a key component for longitudinal height channel control and can be widely used in cruise missiles and UAVs to measure altitude relative to the sea or ground. The MY-2001 adopts linear modulation coefficient technology adaptive to height changes and echo signal narrow-band receiving technology to enhance the product’s resistance to active interference, uses coherent local oscillator mixing to achieve superior performance in resisting co-frequency asynchronous interference, employs echo signal spectrum front detection technology to improve tracking accuracy, and follows the three design principles of serialization, standardization, and modularization to ensure good product inheritance; moreover, built on a closed-loop tracking system, it integrates digital control technology, microwave integration technology, and hybrid integration technology to realize product miniaturization.

MASS-21 Echo Simulator of Radio Altimeter

​The MASS-21 Radio Altimeter Echo Simulator is capable of simulating both static and dynamic echo signals of altimeters under a variety of altitude conditions and reflection coefficient scenarios. It is compatible with radio altimeters of multiple systems, including frequency modulation (FM) systems, phase modulation (PM) systems, and pulse systems, and is also equipped with a built-in self-check function to ensure its own operational reliability during use.

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    Factory I: Building B , Gualan High-Technology Park, Longhua District, Shenzhen City, Guangdong Province.
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