An Asynchronous SINCGARS (Single Channel Ground and Airborne Radio System) Frequency Hopping Notch Filter Based on Canceller Technology Navy SBIR FY2008.2 Sol No.: Navy SBIR FY2008.2 Topic No.: N08-196 Topic Title: An Asynchronous SINCGARS (Single Channel Ground and Airborne Radio System) Frequency Hopping Notch Filter Based on Canceller Technology Proposal No.: N082-196-0071 Firm: Zeger-Abrams Incorporated 1112 Clark Road Glenside, Pennsylvania 19038 Contact: Burton Abrams Phone: (215) 576-5566 Web Site: www.erols.com/zeger Abstract: This proposal examines a combination of proprietary techniques for preventing shipboard SINCGARS transmitters from overdriving and desensitizing a cosite sensitive signal exploitation receiver. ZA proposes to pursue further development and integration of these techniques, which in combination offer interference suppression greater than 50 dB, low impact on receiver noise figure, and fit in less than a 7 U high rack mount unit for each direction-finding receiver channel. Benefits: Development of the proposed technique will allow a shipboard signal exploitation receiver to operate over the HF, VHF, and UHF frequency ranges without desensitization by multiple, strong, cosited SINCGARS transmitters. The technique will also be extremely beneficial to SINCGARS communications reception in the presence of strong cosite SINCGARS transmissions on U.S. Navy ships and on ground vehicles operated by the U.S. Marine Corps and U.S. Army. Return