Story ID: 
EMS Technologies speeds satcom data
By: Irwin Stambler
Caption: Airborne data access at speeds 50 times faster than previously possible with existing satcom systems is claimed for the new aeronautical data terminal (ADT
Word Count: 304
Airborne data access at speeds 50 times faster than previously possible with existing satcom systems is claimed for the new aeronautical data terminal (ADT-1000) designed by EMS Technologies of Ottawa, Canada. The dual-channel unit, EMS said, is compatible with all Arinc 741 Aero-H/H+ satcom antennas, including the AMT-50, produced by its satcom division. It can be installed “alongside an existing voice satcom system to deliver high-speed data throughout without disturbing the existing multi-channel voice system. As well, it can also be installed where there is no satcom presently,” said the company.Al Hansen, president and CEO of EMS Technologies, commented, “Our technology, combined with the Inmarsat satellites and network, works as an extension of a corporate local area network.” Significantly, an alliance was just announced between EMS and Pentar Avionics to combine the two firms’ technology in a high-speed airborne network for commercial and corporate aircraft called JetLan SatLink. The arrangement permits delivery of satellite data at speeds from 64 kbps to 128 kbps. EMS reports the ADT-1000 is part of a line of products that includes L-band and Ku-band antennas that enable direct broadcast TV and data connectivity from the air. Hansen also noted an important milestone for the AMT-50, the first dual installation on a Gulfstream IV by Midcoast Aviation, Cahokia, Ill.“This represents the first time a dual tail-mounted satcom antenna installation has been done by anyone in avionics. The AMT-50 is well suited to a dual installation, as it is the lightest and smallest antenna available on the market. Furthermore, co-locating the two AMT-50s does not compromise antenna performance because it is made of composite materials and does not create an RF shadow. We see a dual AMT-50 installation as a popular choice for operators who demand redundant satcom systems without a heavy weight penalty on top of their tail,” said Hansen.