ARRL The Doctor is In

How high does your antenna need to be? The Doctor provides the answer.

These devices are godsends to anyone who is interested in building their own antennas. Find out why!

What is your signal strength meter really telling you? Can you trust it? The Doctor has the answers!

CW is still one of the most popular communication modes in Amateur Radio. Learn all about the types of Morse code keys in use today, as well as the electronic keyers found in many transceivers.

Every Amateur Radio stations needs a power supply, but not all supplies are created equal.

APRS -- the Automatic Packet Reporting System -- is about more than tracking the locations of objects.

Just in time for ARRL Field Day, a discussion of electric generators!

Six meters is often called "The Magic Band" and Sporadic E propagation is one of the reasons why. You never know when it will come into the play, and its strange nature is still not well understood.

There are terrific bargains in hamfest flea markets, but some real dogs lurk there as well. Here are some valuable shopping tips that may save you some money!

There are a number of ways that you can adjust your transceiver for optimum receive performance. Find out how!

End-Fed HF antennas are becoming increasingly popular, especially for limited space applications, but how well do they really work? In this episode, the Doctor separates myth from reality.

Discussing grounds for electrical safety, RF problems, and lightning protection. Also, a question about odd SWR readings.

With a few adjustments you can not only sound better on the air, your signal may gain a edge that will help you cut through the pileups!

Not every antenna tuner needs to be inside your station. Some do an even better job outdoors!

We uncover a bowl of alphabet soup in this episode, along with some interesting technical history.