www.aerodefensetech.com May 2021 Welcome to your Digital Edition of Aerospace & Defense Technology May 2021 Using Low-Frequency Broadband Sonar on UUVs Does Your UAV Program Need a Transponder? Powering Better Battlefield Drones Developing New Anti-Drone Radar Technology From the Publishers of How to Navigate the Magazine: At the bottom of each page, you will see a navigation bar with the following buttons: Arrows: Click on the right or left facing arrow to turn the page forward or backward. Introduction: Click on this icon to quickly turn to this page. Cover: Click on this icon to quickly turn to the front cover. Table of Contents: Click on this icon to quickly turn to the table of contents. Zoom In: Click on this magnifying glass icon to zoom in on the page. Zoom Out: Click on this magnifying glass icon to zoom out on the page. Find: Click on this icon to search the document. You can also use the standard Acrobat Reader tools to navigate through each magazine. Cov ToChttp://www.abpi.net/ntbpdfclicks/l.php?202105ADTNAV