ARRL The Doctor is In

ARRL The Doctor is In

United States

ARRL The Doctor is In is a podcast based on the popular QST magazine column "The Doctor is In." Hosted by QST Editor in Chief Steve Ford, WB8IMY, and columnist Joel Hallas, W1ZR, the podcast is a lively 20-minute discussion of a wide range of technical topics. Sponsored by DX Engineering.


S Units  

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

Keys and Keyers  

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.

Power Supplies  

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!

The Mystery of Sporadic E  

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.

Flea Market Tips  

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!

Optimizing Receiver Performance  

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

End-Fed Antennas  

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.

Speech Equalization, Compression and Processing  

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!

Remote Antenna Tuners  

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

CTCSS, DTMF and More  

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

HF Loop Antennas  

Many amateurs swear by large loop antennas for the HF bands, but what makes them so special?

AM and SSB  

Amplitude Modulation and Single Side Band have a great deal in common, including a shared history.

Meteor Scatter  

Between five and 300 metric tons of space debris plunges into our atmosphere every day. And believe it or not, hams have been bouncing signals off of it for decades!

Long Delayed Echoes  

Strange ducting in our atmosphere? An alien repeater in outer space? No one really knows what causes this spooky phenomenon.

Restoring Old Radios  

We end the year with a fond remembrance of rigs gone by, and a discussion of how to bring them back to life.

Antenna System Troubleshooting  

How to track down and fix those annoying antenna problems.

Yagi Antennas  

A discussion of how these venerable antennas really work, with a nod to Mr Uda!

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