Airborne Downlink

How do you earn the name “The Downlink Experts”?

A decade of experience developing COFDM airborne video downlinks does not hurt. Four generations of industry-leading technology helps. But what is the real key to being “The Downlink Experts”? Listening to your customers.

The Heli-Coder 4 is the culmination of 10 years of BMS customer feedback. Incorporating MPEG-4/H.264 compression, Ethernet input, native HD-SDI capability, and an internal GPS receiver, the Heli-Coder 4 puts all of the features incident responders need in the small, lightweight package law enforcement pilots want.

Airborne Downlink
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In addition to analog video, SDI, HD-SDI, Ethernet, and GPS inputs, the Heli-Coder 4 also directly interfaces with popular moving map systems to enable Geo-Point capability in ground receive assets. By incorporating TLL (Target Lat Long) data into the downlink stream, the Heli-Coder 4 enables Geo-Point capable receivers (such as the BMS Carry-Viewer 4) to direct ground officers to the location shown in the video, rather than the helicopter’s location.


Transmitter – Heli-Coder 4 Datasheet | 300kb
Tracking Antenna – BMA-X-O Datasheet | 829kb
Retractable Airborne Antenna – TAA-101 Datasheet | 785kb
Downlink Control Panel – DLC50 Datasheet | 809kb
Briefcase-Viewer 4 (BV4) Tactical Receiver Datasheet | 407kb
 Mobile-VIEWER™ 4 Vehicle COFDM Receiver Datasheet | 885kb
Portable Receive Site Datasheet | 479kb

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