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GA300-ku band Helicopter Airborne Satellite Communication System


GA300-ku band Helicopter Airborne Satellite Communication System
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Details

Rotorcraft has the characteristics of fast speed, low altitude, flexible mobility and free from geographical conditions, it plays an important role in aerial forest protection, supplies delivery, emergency rescue and disaster relief, search and rescue, and major event security. Based on the design features of communication satellites and combined with the complementary advantages of traditional wide-beam satellites, the general aviation airborne satellite broadband communication service with "high bandwidth rate, wide coverage range and excellent service quality" is launched for each application scenario of rotorcraft. The service realizes the connection with the ground satellite earth station and the ground communication network through the antenna terminal installed on the aircraft, which effectively guarantees the safe production of the aircraft during the operation and improves the operation efficiency.


Features1) High Integration of ACU Modem and POWER
2) Built-in INS
3) Modular Design
4) Simplified system structure
5) Easy Operation
6) Remote data monitoring

Applicaiton

The system has been installed and applied in Eurocopter EC130B4/EC135P2/P2+/EC130T2, Airbus AS350B3/H125 (Squirrel), Bell407 and other aircrafts, meets the application requirements of rotorcraft in aerial tour, emergency rescue, police patrol and other scenarios.


VSAT Technical Parameter

GA300 is a satellite communication system designed for small and medium-sized rotorcraft (manned & unmanned) general aviation aircraft, which enables the aircraft to carry out real-time video backhaul, IP calls and broadband Internet access through the satellite during the flight, and has the characteristics of small volume and light weight.

MODEL

GA300

Dimension

(diameter*height)

Φ440mm×415mm

weight

≤13.5kg

Frequency range

RX:12.25~12.75GHz     TX:14.00~14.50GHz

Type

Panel waveguide horn array

Receive G/T(pitch 10°)

8.8dB/K(Normal temperarure@27℃,LNB noise factor @0.8dB,Radome excluded)

transmit EIRP(dBW)

47.5dBW(40W BUC,Radome excluded)

GAIN(RX)

29.5dB@12.50GHz

GAIN(TX)

30.5dB@14.25GHz

Cross pollsolation

≥30dB

Power consumption

90W(excluded BUC)

Azimuth range

360°continuous rotation

Pitch range

0°~90°

AZ/EI Velocity

>60°/s

AZ/EI acceleration

>100°/s2

Tracking accuracy

≤0.2°(R.M.S)

DC power

DC 18~32V

Operating temperature

-40℃ ~ +75℃

altitude

16800Meters(55000Feet)


MODMAN

As an important part of the satellite communication link, the airborne satellite communication control terminal MODMAN highly integrates the modem (Modem), control unit (ACU), video codec, etc. The terminal has the functions of signal processing, system control, video and voice output.

MODMAN Technical Parameter(Inside antenna equipment)

MODEL

specification

Dimension

L416mm×W220mm×H110mm

weight

≤6.5kg

DC Power

DC18~32V

Power

60W

Operating Temperature

-20℃ ~ 60℃

1)MODEM Technical Parameter

Item

Specification

IF interface

Frequency range:950~2150MHz,Step in 100KHz

Tx signal level range:-35~-5dBm,1dBm Step in

In-band Spurious output:≤-50dBc

Rx signal level range:-65~-25dBm 

Modulation Mode

QPSK

Information Rate

64kbps~4096kbps,64kbps Step in

Spread Spectrum Ratio

2 times spread spectrum, 4 times spread spectrum (small spread spectrum mode)

Form Coefficient

0.35、 0.25、 0.2

Error Threshold

Eb/n0=2.7dB,Pe≤1×10-6

Channel Coding

LDPC code

2)Encoder Technical Parameter

Item Specification
Video and audio Video Input 2 channels of video input (support HDMI&SDI, at the same time select one channel input)
Video Coding H.265,H.264SVC、H.264 Dual channel compression coding
Resolution Ratio 1080P、720P、D1
Frame Rate 3~60 frame/S (Default: 15 frames per second)
Audio Interface 1 channel  2 in 1 (3.5mm headset) audio input/output
Audio Coding G.711 audio compression, with error correction and enhancement functions
Network  4G
Support China Telecom/China Mobile/China Unicom 4G full network access network standard
Cable Support network speed; 80kbps-8Mbps
Storage TF Card Max support 64G;Continuous storage, automatic segmentation, according to the time recording
Interface SIM Card 1 pop-up UIM (SIM) holder
Transmission speed Support 60Kbps ~ 10Mbps adjustable, default 256Kbps



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