Written to bridge the gap between basic theory and graduate-level engineering texts, the second edition of Antenna Physics: An Introduction includes new material to help you better understand the complexities of antenna theory.
World-recognized antenna technology authority Robert J. Zavrel, Jr., W7SX, is your guide to grasping a deeper understanding of how antenna systems function. In this book, he clearly communicates the theory and the mathematics that form the foundations upon which all antenna designs depend.
Antenna Physics: An Introduction, 2nd ed, is available from the ARRL Store or your ARRL Dealer. (ARRL Item no. 1359, ISBN: 978-1-62595-135-9, $34.95 retail, special ARRL Member Price $29.95). Call 860-594-0355 or, toll-free in the US, 888-277-5289. It will also be available for the Amazon Kindle.
Antenna
HF PORTABLE – CHOOSING THE RIGHT ANTENNA
https://www.youtube.com/watch?v=Mgh6iID4Amk Read more
Vertical Dipole Bravo 7K – 7 band coverage: 40-30-20-17-15-12-10
Vertical Dipole Bravo 7K 7 band coverage: 40-30-20-17-15-12-10 manual tune 20-17-15-12-10 meters are full size setting tubing lengths High Q... Read more
Chameleon Emcomm IIIP Antenna – Antenna, Portable, 160M-10M
CHAMELEON ANTENNA EMCOMM-III Portable HF Antenna is specially designed for short to long range portable and man-pack HF communications. The EMCOMM III... Read more
SteppIR DB11 Yagi Antenna ( 6 m to 20 m )
DB11 Yagi Antenna With the DB11, you don’t have to give up performance to fit the antenna into a small space! The DB11 is the smallest of our Y... Read more
Review
Coaxial Cables Common Parameters
What are the most common important coaxial cables parameters? Many different coaxial cables exist, but they all share a numbers of common param... Read more
Kenwood TS990 UnBoxing and Basic Review
Kenwood TS990 The TS-990S comes equipped with dual receivers for simultaneous reception on different bands, it also features narrow-band roofin... Read more
Surecom SF-401plus frequency counter CTCSS decoder
Introduction: The frequency meter capable of measuring the parameters of the frequency of the continuous carrier signal walkie-talkies , with signal... Read more
Introduction to the SOTABeams Wolfwave
SOTABeams Features Fully adjustable audio band-pass filtering instantly adjustable for voice, data and CW (b/w 50 Hz to 5 kHz) VIDEO State-of-the-art... Read more
Equipment
TM840 DMR Mobile Radio
DMR Mobile Radio 1.8” Graphic Dot-matrix True Color Display The large-sized, full color display enables the access to desired information easily even... Read more
miltiFlex – FlexRadio
Maestro and PC at the same time Have your cake and eat it too. With multiFLEX you no longer need to choose between a Maestro and a PC. Now you can ope... Read more
SmartLink™ for Remote Access – FlexRadio
Robust, Secure Remote Access to any FLEX-6000 – Operate from Anywhere Simple Click connect. It’s that simple. SmartLinkTM is designed fro... Read more
Bird Sitehawk , Antenna/Cable Analyzer, Spectrum Analyzer
“This is the Bird43 that everyone knows, ON STEROIDS! LOL… I had no idea Bird came to this, so I wanted to share it with you. Something th... Read more
How to build a Simplified Arduino CW Trainer by Tom N4TL
The winning article for the September 2016 QST Cover Plaque award is “Arduino CW Trainer” by Tom Lewis, N4TL. The QST Cover Plaque Award — given... Read more
News
St. Vincent Radio Amateurs on Alert During Volcano Emergency
Donald de Riggs, J88CD, on the Caribbean island of St. Vincent, says that on April 13, the 42nd anniversary of the 1979 eruption of the La Soufriere v... Read more
Can You Cook A Hotdog With Ham Radio?
“I’ve always been facinated by the physical affects of RF. Today, a light experiment testing if can cook hotdogs with RF. The test incorpo... Read more
Updated Radio Frequency Exposure Rules Become Effective on May 3
The FCC has announced that rule changes detailed in a lengthy 2019 Report and Order governing RF exposure standards go into effect on May 3, 2021. The... Read more
March 2021 Volunteer Monitor Program Report
The Volunteer Monitor (VM) Program is a joint initiative between ARRL and the FCC to enhance compliance in the Amateur Radio Service. This is the Marc... Read more
ARISS USA Gets IRS 501(c)(3) Recognition
ARISS-USA, a Maryland nonprofit corporation, has earned recognition from the US Internal Revenue Service (IRS) as a Section 501(c)(3) charitable, scie... Read more
![YAESU FT- 891 First Test [ Video ]](https://qrznow.com/wp-content/uploads/2016/10/yaesu-ft891_asd-265x168.jpg)
