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MY-5001B Radio Altimeter for Sea Condition Identification

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.

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Description

Main Technical Parameters

  • Working frequency: C-band;
  • Transmitting power: ≤ 200mW;
  • Height measurement range: 0.5m ~ 1500m;
  • Altimetry accuracy: ≤ 0.2 or 2% Hm;
  • Attitude angle: pitch ± 30° and roll ± 35°;
  • Sensitivity: ≥90dB/100m; ≧105dB/500m;
  • Electromagnetic wave incidence angle range: ≥ 75°;
  • Power supply: DC +18V ~ 36V;
  • Current: no more than 0.5A;
  • Components: 100% localization;

 

Adapt to the Environment

  • Operating temperature: -40℃~+60℃;
  • Storage temperature: -55℃~+65℃;
  • Relative humidity: ≤95%;

 

Communication Interface

  • Interface form: RS422 interface;
  • Communication rate: 115200bps.

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