Available types such as Microstrip patch arrays, horns, and cavity-back slot fed arrays in frequency range of 4.2 to 4.4 GHz typical.  We hold FAA TSO-C87 certification on most of our radar altimeter antenna models.

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  Radar Altimeter Antenna AD43011-F16
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  Flush Mount Altimeter Antenna AD43009-1
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  Microstrip Altimeter Antenna ADS43010( ) Series
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  Microstrip Radar Altimeter ADS43010.5
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  Radar Altimeter Antenna AD43011
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  Flush Mount AD43013-1