BTSTS-RA083

BTSTC-RA083 radio altimeter is an all-solid-state C-band, FMCW, constant beat, closed-loop tracking measurement system radio altimeter.

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BTSTS-RA083

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Overview

BTSTC-RA083 radio altimeter is an all-solid-state C-band, FMCW, constant beat, closed-loop tracking measurement system radio altimeter. It guarantees the beat frequency to be a constant value through the servo control of the slope of the modulated sawtooth wave of the microwave oscillator, thus realizing the automatic tracking of the height. Under the condition of constant beat, the measured height is proportional to the modulation period, and the height information can be obtained by measuring and modulating the period, and the height voltage is converted to output.

BTSTC-RA083 altimeter has good anti-jamming performance because of its narrow-band receiver, its gain can be controlled with altitude, and its equivalent spectrum front detection, weighted frequency discrimination and automatic servo tracking technology. The high frequency components of the altimeter realize microwave integration, and the low frequency components realize miniaturization design.

BTSTC-RA083 altimeter has the characteristics of small size and high accuracy.

Composition

BTSTC-RA083 radio altimeter is composed of three parts: altimeter host, transmitting antenna feeder unit and receiving antenna feeder unit. The name, code and quantity of each part are listed in Table 1.

Table 1 Composition of altimeter

Serial number	Name		Code name	Quantity	Remark
1	Host		RA083	1
2	Transmitting antenna feeder unit	Transmitting antenna	RA083	1
3	Transmitting antenna feeder unit	Transmitting feeder	SMA-J142G/JW142G-1800	1
4	Receiving antenna feeder unit	Receiving antenna	RA083	1
5	Receiving antenna feeder unit	Receiving feeder	SMA-J142G/JW142G-1500	1

Key Features & Performance

Altimeter Range	2-1500m
Overall power consumption	≤ 14 W @ 28V
Height measurement accuracy	±(0.3 +0.03×H) ，2≤H≤ 1500m H is the height
Work Frequency	4300±100MHz
Work Mode	FM continuous
Antenna standing wave	≤1.7（@4300MHz）
Sensitivity	≥-85dBmW（500m）
Range of adaptive carrier attitude change	roll angle ± 30 °, pitch angle ± 30°
Anti Doppler capability	≤680m/s(not less than 2Ma)
Dimensions	1)Host size (excluding connectors):≤ 86mm × 52mm × 41.5mm; 2)Antenna size (excluding connectors): ≤ 90mm × 68mm × 5mm

Structural dimensions(mm)

Figure 1 Dimensions of the host

Figure 2 Dimensions of transmitting and receiving antennas

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