Listen to a discussion about Power Supplies in this episode of the ARRL The Doctor is in podcast.

The Automatic Packet Reporting System can be used for much more than vehicle tracking. Listen to a discussion of these capabilities, and revisit the history of Packet Radio, in the APRS episode of the ARRL The Doctor is in podcast.

Planning on using portable power at your Field Day site? You may be interested in the Generators episode of the ARRL The Doctor is in podcast.

Learn about propagation on the Magic Band in The Mystery of Sporadic E episode of the ARRL The Doctor is in podcast.

Pick up some Flea Market Tips for smart Hamfest shopping in the 31st episode of the ARRL The Doctor is in podcast.