Software-defined radios are great tools for the amateur radio operator, allowing visualization of large swaths of spectrum and letting hams quickly home in on faint signals with the click of a mouse.

Radios and walkie-talkies may seem like relics from your childhood, but nothing can quite compare to the convenience and simplicity of a pair of two-way radios. The freedom from reliance on a cellular ...

As popular as the venerable Yaesu FT-817 transceiver might be with amateur radio operators, it’s not without its flaws, particularly in the user interface department. [Andy (G7UHN)] is painfully ...

This rugged power supply is based on the popular LM338 3-pin voltage regulator. The LM338 is capable of supplying 5 A over an output voltage range of 1.2 V to 32 V with all standard protections like ...

While working in the Amateur Radio department at Heathkit, I was given the task of seeing a new two-meter ham transceiver through the system. The kit design had already been finalized, but the project ...

If you're not a subscriber to the magazine, pick up this latest issue featuring Amateur Radios on newsstands mid-December, or buy a single copy in our on-line store. Both digital and print copies are ...