ARRL Antenna Book Reference

23rd Edition - Support

  • Overview and Directions

    This web page is for information that extends or supports the ARRL Antenna Book, 23rd edition.  The section for each edition contains links to supplemental files and software, non-ARRL documents, and errata and corrections. For more information on installing the software provided on the book's CD-ROM, download and read this CD-ROM Installation Summary, provided as a PDF document.


    To purchase the book, click here or browse to the ARRL Store where you can also find numerous other publications on antennas and transmission lines.


    Printed-circuit boards for many current and previous Antenna Book projects are available from FAR Circuits.



    Information in support of previous editions can be found on the ARRL Antenna Book - 22nd Edition or ARRL Product Notes page for editions before the 22nd.

  • Software

    The following PDF instruction files are provided here as a convenience to users of the software provided on the Antenna Book CD-ROM.

    HFTA - Instructions
    YW - Instructions
    TLW - Instructions


    EZNEC - previous editions of the Antenna Book included a version of EZNEC-ARRL which ran special model files. This software has been replaced by the demo version of EZNEC 6.0 which available online from the EZNEC website.  The demo version of EZNEC will run the EZNEC-ARRL models without modification.



    The following list includes Windows-based software utilities that support various topics in the Antenna Book. Chapter numbers refer to the primary chapter in the ARRL Antenna Book that references the software.  No additional documentation is available beyond what, if any, is provided with the software. 


    Unless otherwise noted, all of the software listed here can be downloaded to your hard drive, unzipped if necessary, and run directly from the Windows Start menu without requiring installation in the Windows system.


    Chapter 1 - Antenna Fundamentals

        SCALE.ZIP - a software utility to change the frequency of YW antenna models while compensating for element diameters and taper.  Models from other software can be used as described in the documentation included with the utility.


    Chapter 4 - Radio Wave Propagation

        RngBrg.ZIP - software to compute the range and bearing from a point at one latitude/longitude to another.


    Chapter 7 - Log Periodic Antennas

        Log Periodic Element and Phase Line Calculator - Spreadsheet to calculate LPDA element lengths and spacings, along with phase line impedance, by Dennis Miller, KM9O.  This spreadsheet is in Excel format (XLS) and was last updated on 12 Sep 2011.


    Chapter 8 - Multielement Arrays - Phased array feed system design software by W7EL.  This package is identical to the version supplied with the 22nd edition of the book.  The ZIP file contains a help file (Arrayfeed1.chm) and the software (Arrayfeed1.exe).

        SCALE.ZIP - see Chapter 1 above.


    Chapter 11 - HF Yagi and Quad Antennas

        GAMMAMW4.ZIP - An improved version of the previous utility GAMM2-1 that corrects a calculation problem that fails to find solutions to the calculations when the combination of the desired feed line impedance exceeds the product of the raw antenna resistance and the gamma step-up value.  The code was developed by Bill Wortman, N6MW and generously donated to the ARRL and the readers of the Antenna Book, ARRL Handbook, and Low-Band DXing by ON4UN.  The ARRL also wishes to thank Greg Ordy, W8WWV for testing the code.

        EFFLEN.ZIP - A software routine (written in FORTRAN) to calculate effective lengths of antenna elements.


    Chapter 21 - Mobile and Maritime HF Antennas

        MOBILE.ZIP - Mobile whip design software by Leon Braskamp, AA6GL. The compressed file includes MOBILE.EXE - the software - plus a desktop icon file.


    Chapter 23 - Transmission Lines

        Two-Wire Feed Line and Radiated Power Calculator - Spreadsheet to calculate the impedance of parallel-conductor line and the amount of radiated power by Dennis Miller, KM9O  This spreadsheet is in Excel format (XLS) and was last updated on 12 Sep 2011. - software to analyze antenna tuners by Dean Straw, N6BV.  The compressed file includes AAT.EXE - the software - plus a PDF instruction file, desktop icon, and associated LOG and SUM file examples.

  • Supplemental Information and Files

    CD-ROM Supplemental Files Directory - a searchable PDF list of articles and other documents provided with the Antenna Book on CD-ROM.

    Project Directory - a PDF list of projects in the Antenna Book, sorted by project type.

    Radio Mathematics - a compilation of math basics and online resources in case help is needed with math encountered in the Antenna Book. (Also included on the CD-ROM)

    ARRL antenna modeling files for the ARRL Antenna Book - the set of EZNEC modeling files represent many of the antennas discussed in the Antenna Book.  The models are grouped in folders named for the type of antenna they represent. A complete description of the files is included on this README.TXT file which is duplicated on the book's CD-ROM.  The models include the new high-performance VHF/UHF Yagi designs by GØKSC created for this edition of the Antenna Book and discussed in Chapter 15. The GØKSC models require EZNEC/PRO4 for accurate reproduction of the radiation pattern, gain, and other specifications.


    Note that the K1FO VHF/UHF Yagi designs from previous editions are provided as a PDF document on the book's CD-ROM.

    Broadband wire antenna design for 160 through 40 meters - the following links to downloadable articles and online resources provide additional ideas for broadbanding wire antennas on the MF and lower-HF bands.



    This downloadable Excel 97-2003 spredsheet contains the Table of Contents for the entire ARRL Antenna Compendium series, Vol 1-8.  The articles may be sorted according to a number of topics that apply to the articles, making it easier for you to find articles for your particular situation or application. (Updated 6 Oct 2015)

    ARRL Vendors guide for antenna system materials, components, and services - supplied as a downloadable Excel 97-2003 spreadsheet. (Updated 28 Sep 2015)


  • Errata and Clarifications

    Chapter 11

    YW Models

    Dimensions for the monoband Yagi hairpin matching inductors are given in the YW file for that antenna.  Scroll to the end of the file to see the hairpin dimensions.

    Dimensions for torque compensators and three corrected YW files for the modified Hygain antennas.



    Chapter 15

    Table 15.20

    Director 8 (DIR8) should be placed at 1.814 meters from the REF position, not 1.314.

    Figure 15.44A

    The feed point attachment hardware is more conveniently assembled with the screw heads on the bottom of the driven element instead of on the top as shown.  The coaxial feed line is attached to the halves of the driven element and no connection is made to the boom or other hardware.