Download Included: The fully searchable digital edition of the printed book, as well as expanded supplemental content, software, PC board templates, and other support files.

System Requirements: The ARRL Antenna Book digital edition and expanded content (PDF files) are compatible with Windows 7, 8, or 10; Windows Vista or Windows XP, as well as Macintosh systems, using Adobe Acrobat Reader software. Acrobat Reader is a free download at adobe.com. PDF files are Linux readable. Other included software is Windows compatible, only.