Small radio altimeter HY-28A、HY-24(XXX-28A、XXX-24)
HY-28A、HY-24(XXX-28A、XXX-24)adopt seriation, standardization, modularization and other three design, product inheritance is good, mature and reliable, the product has been widely used in several types of aircraft.
At present, the number of the two types of radio altimeters has exceeded 800 sets.
★Main electrical performance
*Operating frequency: 4300 ± 100MHz;
*Radiation power: 20 ~ 24dBmW;
*Receiving sensitivity: better than - 85dBmW;
*Height measurement capacity: no less than 3000m;
*Altimetry accuracy:
±0.6 m 1m﹤H≤10m ;
±(0.3+0.03×H) m 10m﹤H≤3000m ;
*Adaptive flight attitude: pitch ± 30 ° and roll ± 45 °;
*Horizontal velocity: 0-3 mach;
*The power supply DC is 18 ~ 36V, and the consumption current is not more than 0.8A;
*Working temperature: - 40 ~+ 60 ℃
*Output form: RS422
★Mechanical parameters
Dimension and weight of each part of altimeter
Serial number |
Name |
Size |
Weight(kg) |
1 |
Measurement and control unit |
Effective body size:130mm×86mm×56mm |
≤1.50 |
2 |
Transmitting antenna |
155mm×40mm×6mm;(without SMA connector) |
≤0.3 |
3 |
Receiving antenna |
155mm×40mm×6mm;(without SMA connector) |
≤0.3 |
4 |
Feeder |
Transmission feeder length:2800mm |
≤0.4 |
Receiving feeder length:2800mm |
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