Find on this site... Site Index  ·Classes ·Exams ·Clubs ·Hamfests ·Addresses    Search site:    Call sign search:   ARRL Member Login... Username:   Password:    Register    Forgot userid/password?  Quick Links... ·Join or Renew ·Catalog & Store ·ARRL Courses ·Classifieds ·Getting Started

Operating Activities Licensing News/Bulletins Services Education Public Service Support Donate to ARRL ARRL Info Text-only

ARRL Products: VHF/UHF/Microwave (More) Microwave Projects -- Complete designs and ideas for the microwave experimenter: signal sources, transverters, power amplifiers, test equipment and more. ARRL's VHF/UHF Antenna Classics -- Practical designs and construction details from the pages of QST. ARRL's VHF Digital Handbook -- Dive into the digital radio universe! The ARRL UHF/Microwave Projects CD -- Practical projects, design and construction ideas for UHF and Microwave Experimenters International Microwave Handbook -- Now Shipping! -- Reference information and designs for the microwave experimenter. Published by RSGB and ARRL.

Experiment #12 of "Hands-On Radio" [Jan 2004, Figure 2, page 62] should show V_o with its "+" sign at the bottom of R1 and referenced to ground. This will then be consistent with Equation 2.--tnx Jason Dugas, KB5URQ

In Experiment #15 of "Hands-On Radio" [Apr 2004, page 71], Equation 3 should read E=1/2 LI² and not E=1/2(LI)².

In "The Skinny on Antennas" [Apr 2004, page 30], the formula for antenna length got transposed (second column, mid-page). The parenthetical factor should be (468/7.15), not (486/7.15).