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.

1) 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

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.

GA400 is a Ku-band broadband satellite communication system designed for large and medium-sized rotorcraft (manned & unmanned) general aviation aircraft. It adopts a highly integrated design and integrates high-efficiency semi-parabolic, feed network, low-noise amplifier, servo control modules, the GPS/Beidou positioning module and the intelligent tracking structure into one antenna device. The system effectively solves the problem of rotor block,allows the rotorcraft to carry out real-time video backhaul, IP calls and broadband Internet access through satellites in the air.

MODEL	GA400
Dimension (diameter*height)	Φ530mm×390mm
weight	≤12.5kg
Frequency range	RX：10.70～12.75GHz     TX：13.75～14.50GHz
Type	parabolic antenna
Receive G/T(pitch 20°）	10.1dB/K（Normal temperarure@27℃,LNB noise factor @0.8dB,Radome excluded）
transmit EIRP(dBW)	46.5dBW（40W BUC，Radome excluded）
GAIN（RX）	31.0dB@12.50GHz
GAIN（TX）	32.3dB@14.25GHz
Cross pollsolation	≥30dB
Power consumption	100W(excluded BUC）
Azimuth range	360°continuous rotation
Pitch range	-8°～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)

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）

1）MODEM Technical Parameter

2）Encoder Technical Parameter