GAT-5518 terminal
Viasat, Inc.
The Viasat GAT-5518 is a resilient Ka-band terminal with an 18-inch parabolic antenna, designed for in-flight broadband connectivity services on airborne platforms.
Typed specifications35 values
Discloses 7 of 10 fields engineers filter by in this category (category median 2).
- Frequency band
- Ka datasheet p.2 Ka full ITU Ka, Commercial and Military
- Mass
- 15 900 g datasheet p.2 15 900 g antenna, 35.0 lb.
- Frequency range
- 17 700 MHz min · Rx · datasheet p.2 27 500 MHz min · Tx | 21 200 MHz max · Rx | 31 000 MHz max · Tx | 17 700–21 200 MHz Rx +1
- Beamwidth (-3 dB)
- 0 ° min · Azimuth coverage · datasheet p.2 0 ° min · Elevation coverage | 360 ° max · Azimuth coverage continuous | 90 ° max · Elevation coverage
- Envelope (L×W×H)
- Ø19.6 x 19.6 in.; Ø49.8 x 49.8 cm swept volume (D x H) · datasheet p.2 Ø49.8 x 49.8 cm Swept Volume (DxH)
- Polarization
- switchable circular polarization, electronically switchable, all combina… · datasheet p.2 circular electronically switchable, all combinations of R, L, co-pol, …
- Antenna type
- Tail or fuselage mount, parabolic reflector Ka-band Tx/Rx airborne antenna datasheet p.2 reflector (parabolic) tail or fuselage mount, parabolic reflector Ka-band TX/RX air…
- Supply voltage
- 28 V antenna power supply · datasheet p.2 115 V antenna power supply, 360 Hz - 800 Hz single phase
- Power consumption
- 420 W antenna power supply · datasheet p.2 175 W modem
- Data interface
- Ethernet 1000 BASE-T data and control · datasheet p.2 other ARINC 429 navigation data | RS-422 navigation data
- Operating temperature
- -55 °C min · datasheet p.2 70 °C max | -55–70 °C antenna
- Beam steering
- mechanical (gimbal) 2-axis steerable 2-way Ka-band antenna · datasheet p.1
- Scan range
- 90 ° elevation coverage 0° to 90° · datasheet p.2
- G/T
- 15 dB/K at 36K ft., midband frequency including radome loss · datasheet p.2
- EIRP
- 50.8 dBW 10 W Tx mode, at 36K ft., midband frequency including radome … · datasheet p.2 53.8 dBW 20 W Tx mode, at 36K ft., midband frequency including radome …
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier12 lines, in the manufacturer's own wording
- Antenna class
- Tail or fuselage mount, parabolic reflector Ka-band TX/RX airborne antenna
- Antenna aperture
- Parabolic reflector, circular polarization, electronically switchable, all combinations of R, L, co-pol, or cross-pol
- Antenna frequency
- Full ITU Ka, commercial and military
- Antenna swept volume (DxH)
- Ø19.6 x 19.6 in.; Ø49.8 x 49.8 cm.
- Antenna weight
- 35.0 lb.; 15.9 kg
- Antenna power supply power source
- 115 VAC, 360 Hz – 800 Hz single phase, or 28 VDC
- Antenna power supply power consumption
- 420 W
- Antenna power supply dimensions (LxWxH)
- 11 x 8 x 3.3 in.; 28 x 20.8 x 8.3 cm.
- Antenna power supply weight
- 7.9 lb.; 3.6 kg
- Modem form factor
- ARINC 600 4 MCU
- Modem dimensions (LxWxH)
- 14.6 x 4.9 x 7.6 in.; 37 x 12.5 x 19.4 cm.
- Modem weight
- 17.0 lb.; 7.7 kg
About
Viasat’s resilient Ka-band GAT-5518 terminal features an 18 in. (45.7 cm) parabolic antenna capable of operating on full ITU Ka-band spectrum with all polarizations. This mission-ready terminal is part of Viasat’s family of next-generation, full-ITU Ka-band terminals, enabling in-flight, broadband connectivity services for airborne operations globally. It is designed to future-proof aircraft with interoperability across all Viasat Ka-band satellites, including the planned ViaSat-3 global constellation. The system comprises three Line Replaceable Units (LRUs): an 18 in. (45.7 cm) antenna with an integrated RF and ACU, a next-generation modem, and an antenna power supply unit. The antenna can be tail or fuselage mounted and operates over the highest capacity Ka-band satellites. It integrates into existing aircraft cabin networks and is a low SWaP (Size, Weight, and Power) solution, ideal for fixed-wing and UAS aircraft, allowing for sending and receiving large amounts of data with a small footprint. The GAT-5518, partnered with Viasat’s global Best Available Network (BAN), provides mission-critical connectivity for global and regional aircraft, enabling real-time mission-critical data. This includes enroute government C3 and VIP transport communications for data, VoIP, VTC, internet access, virtual collaboration, and IPTV, as well as real-time intelligence, surveillance, and reconnaissance (ISR) with HD full motion video and multi-sensor/multi-intelligence operations for instant situational awareness and decision making.
Documentation
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