Yes, the big flip switch does something.

Don’t let the cute dolphin fool you. Want more like this? Get the latest drops, ratings, reviews, and more with the ComicBook Gear Review newsletter — straight to your inbox. At first glance, Flipper ...

When building a radio transmitter, unless it’s a very small one indeed, there’s a need for an amplifier before the antenna. This is usually referred to as the power amplifier, or PA.

An off-the-shelf kit and about two hours are all you need.