677-A0173 Cobham Aviator HGA-7001 High Gain Antenna
677-A0181 Cobham Aviator IGA-5001 Intermediate Gain Antenna, Aeronautical
The HGA-7001 is a fuselage mount phased array antenna for use with Inmarsat Classic Aero (H/H+), Swift64 and SwiftBroadband
SATCOM systems.
The antenna complies with ARINC 781 and can operate with both ARINC 741 and ARINC 781 compliant avionics (Satellite Data Units).
A removable tail cap allows access to the connector compartment.
In cooperation with various airframe manufacturers, a range of RF- matched mounting/adaptor plates have been designed for both fixed and flexible installations.
Certification
- 677-A0173: ZA TSO 4 April 11
- 804-10-0015: FAA TSO 11 October 07
Airframe approvals
- Boeing B777, B747, B767, B787 and B737
- Airbus Single Aisle family (A318, A319, A320 and A321)
- Airbus Long Range (A330 and A340)
- Airbus 380 A400M (pending), A350 (pending)
Equipment Functional Description
The HGA-7001 High Gain Antenna consists of a multi-element phase steered array that is mounted on a base plate inside a radio transparent composite radome.
The RF signal is distributed to the individual antenna elements via a low loss feeder network and a phase shifter.
A control processor interprets the beam steering commands into phase delays that are applied to individual elements.
This process allows the beam to be steerable over the full Inmarsat hemisphere whilst meeting the gain, discrimination and phase discontinuity requirements of the SDM.
Features
- ARINC 781/741 compliant
- Inmarsat SBB 7th order PIM compliant
- Inmarsat Type Approved
- Integrated Beam Steering Unit (BSU)
- Wideband frequency AC power
- DC Power
- Low profile
- RF matched mounting plate options
- Used on a range of air transport aircraft
- Seamless coverage over Inmarsat defined hemisphere
NOTE: The HGA-7001 High Gain Antenna, shown in Figure 1, is a derivative of the proven HGA-7000 Antenna, specifically designed to reduce drag and meet the ARINC 781 specifications. Figure 1 shows the removable tail cover in place. Access to the RF and control connectors is by removal of the tail cap.
The primary differences between the HGA-7000 and the HGA-7001 are listed below: ARINC 429 compliant BSU functionality included ARINC 781 electrical interfaces DC or AC power (115VAC, 400Hz and variable frequency) Addition of input and output protection circuitry Drag reducing streamlining and external access to the connectors
Specification HGA-7001
- Antenna Length 1050 mm [41.34”]
- Width 299 mm [11.77”]
- Height 48.4 mm [1.91”]
- Weight kg [lb] typical 9.3 kg [20.5 lbs]
- Operating Temperature range Altitude -65°C to 70°C [-85°F to 158°F] Up to 21000 m [70000 ft]
- Frequency 1525 MHz to 1660.5 MHz (L-band)
- Power supply 115 VAC or 28 VDC; Nominal <35 W
- Coverage Seamless coverage compliant to Inmarsat SDM
- Polarization Right hand circular
- Gain 12 dBi to 16 dBi over 90% of the Inmarsat Hemisphere Qualification (Software)
- Qualification (Environmental) RTCA/DO-178B,
- Level D Certification RTCA/DO-160E TSO-132 awarded
