White Papers

Transitioning to C-Band

August 13, 2020 | BY: Paul Cook

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To support the demand for Internet access by smartphones, tablets, and other mobile devices, the U.S. Government auction for airwaves saw the standard telemetry frequency bands reassigned for mobile broadband use. Despite this development, the transition to C-band in the United States has been slow.

Several flight test ranges have moved to C-band, but most of the United States has not. As a result, all three frequency bands, L, S, and C, are still being used for flight test despite the Government ruling to move to C-band. To address the multi-band utilization, several transmitter suppliers have developed a tri-band transmitter to support the frequency allocation on demand approach. This white paper reviews Curtiss Wright’s TTS-9800 tri-band transmitter development, performance results, and the support for space-time processing, forward error correction, and thermal management.

L, S, and C frequency bands are still being used for flight test despite the U.S. Government ruling to move to C-band.

L, S, and C frequency bands are still being used for flight test despite the U.S. Government ruling to move to C-band.

 

Transitioning to C-Band

With the increase in devices leveraging the traditional telemetry frequency bands, the everyday operation of the flight test community is drastically affected by reduced operational availability due to increased frequency crowding. In response to these challenges, the Government introduced new standards for bandwidth-efficient modulation schemes to “pack” more data bandwidth in the remaining telemetry workspace, allowing the private sector to develop hardware in the new C-band allocations for telemetry.

The vendor telemetry community responded first with the spectrum-efficient hardware for both air and ground applications while the requirements for C-band applications evolved from initial experiments to actual orders.

Read the full white paper.

Author’s Biography

Paul Cook

Director of Missile Systems, Curtiss-Wright Defense Solutions

Paul Cook is the Director of Missile Systems at Curtiss-Wright Defense Solutions. He has 37 years of extensive design and product line experience in Telemetry Systems. He has held both engineering and management positions in Design & Development, Embedded Encryption, RF Subsystems and Data Links, Engineering & Business Management, and Program Management. He has 34 years of experience in the Telemetry industry and 3 years in Information Assurance Type I CCEP certifications. Paul joined Teletronics in 2007 and in addition, worked in the Telemetry Industry for General Dynamics Corporation, Aydin Corporation, and L-3 Communications Corporation. Paul obtained a BS degree from The College of New Jersey and has various postgraduate courses towards a MBA and Program Management Certifications.

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