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Technical Articles

Using Transformers for Impedance Matching vs. Isolation

Transformers for Impedance Matching One of a transformer’s important functions is impedance transformation. Impedance transformation is just changing the ratio of voltage-to-current in one winding to a different ratio of […]

Clifton Labs / Technical Articles

Audio Transformer Measurements and Modeling

(Editor’s Note: The following article is from the archives of experimenter, inventor, friend of the Ham Radio community, and founder of Clifton Laboratories, Jack Smith, K8ZOA (SK).) This page presents […]

HAM Radio 101 / Products & Product Reviews

Word of the Day: ICOM IC-9700 VHF/UHF/1.2 GHz Transceiver

In our last Word of the Day column, we talked about the details of DX Engineering’s first Hamfest—a free event August 10, 2019, at the Summit Racing Equipment Retail Super […]

Events / HAM Radio 101

DXE Hamfest Overview

Live in Ohio or a neighboring state? Looking for a road trip that will satisfy your Ham Radio and muscle car jones in one fell swoop? Then don’t miss DX […]

Technical Articles

Guide to Low-Power Contesting (Part 2): Techniques and Tips on Making QSOs

In Part 1 of our series on low-powering contesting, we looked at the basic equipment you’ll need. Today, let’s touch on a few tips on competing, contest resources, and opportunities […]

Events / Photo Galleries

It’s All in the Cards! QSL Cards from the Republic of Maldives

Every month, DX Engineering features QSL cards from our team members’ personal collections. To highlight upcoming DXpeditions, we’ll be displaying a few of our favorite cards along with details about […]

HAM Radio 101

What is “Moving Multipliers?”

An operating technique where one asks over the air for a station that is a multiplier (e.g., a new country, state or section) to move (QSY) to a different band […]

HAM Radio 101

Advice on Ham Radio Repeater Etiquette

Here are a few pieces of advice on repeater etiquette that bear repeating from John Devoldere, ON4UN, and Mark Demeuleneere, ON4WW, who wrote “Ethics and Operating Procedures for the Radio […]

HAM Radio 101

Word of the Day: What is “QRV?”

In today’s Word of the Day entry, we tackle QRV—one of early radio’s Q-Signals. These abbreviations beginning with the letter Q were used by operators to save time and simplify […]

Products & Product Reviews

Why Deburring is Essential When Building Antennas

To deburr or not to deburr? Any Ham Radio do-it-yourselfer who has suffered a painful cut while working with machined metal or plastic tubing knows there can only be one […]