There are many ways to build a radio receiver, but most have a few things ... up into the VHF range without regard for modulation. The basic circuit is a Schottky diode detector between an antenna ...

[Source: antiquewireless.org The primary receiver used on the Titanic ... set prominently featured. Get back to basics and make a crystal radio. Learn about resonant circuits, experience history ...

There are many receiver options ... You can purchase a basic weather radio for as little as $20. They are sold at most electronics stores, including Radio Shack and Amazon.com.