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BMS was founded in February, 1982 to develop and market wireless microwave products for video and data transmission. In 1984, the company was purchased and became a wholly owned subsidiary of Cohu, Inc. BMS designs and develops a comprehensive product line of FM analog and SD & HD digital COFDM portable and fixed transmitters, receivers, and accessories ranging from 1.4 - 15 GHz. Microwave systems include auto-tracking, air-to-ground video & data links, point-to-point video & data links, auto-tracking ground antenna systems, relay systems, and portable microwave links. Applications include real-time video for electronic news gathering (ENG), law enforcement airborne systems, unmanned vehicles, ground and aerial surveillance, telemetry, and live television broadcast communications.



Surveillance System for National Security & Defense

System Functionality

1. Video/Audio/Data Capture & Transmission

Video is captured and transmitted from unmanned aerial vehicles (UAV), helicopters,ships, ground transport vehicles, and ground reconnaissance troops.

Wireless transmission accommodated without data degradation up to distances of 200 miles (320 kilometers) to receive sites.

Ground reconnaissance personnel are able to capture and transmit video from portable,hand-carried cameras.

The moving map geographical data of the video captured from the UAVs and helicopters is computed and transmitted.

The GPS coordinates of the UAVs, helicopters, ships, and hand-carried cameras are captured and transmitted.

On helicopter installations, the cockpit audio is transmitted along with the video and

geographic data.

On ship installations, the designated onboard personnels audio is transmitted along with the video and geographical data.

2. Receive Sites

Receive sites are unmanned and fully automated for maximum performance.

Steerable antennas automatically adjust to changes in transmitter location based on GPS coordinates.

Multiplexing of all data for transport over fiber links to command center

Command center remotely monitors and receives diagnostics from receive sites.

3. Command Center

Receive and decrypt secured data from all receive sites.

Ethernet conversion of ASI video and audio

Optional RAID storage of all or selected video and audio.

Determine how and which video is viewed real time.

Display video on wall monitors in selected sizes and configurations.

Display video transmission source locations on moving map.

Distribute selected video, audio, and map data to authorized remote fixed-video viewing stations over secure fiber links

Distribute selected video, audio, and map data to authorized remote mobile-video

stations over secure wireless links

Convert digital video to analog as additional backup.

4. System Quality

All video is captured and delivered to a command center in real time (i.e., minimal latency


5. System Security

All video, audio, and geographic data is encrypted throughout transmission.

Live video access and viewing has multiple security levels determined at the command center.

Access to stored RAID files are password protected by the command center and has

multiple viewing security levels.

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