Radio Crystals
What is a ground for a crystal radio? (refering to electircity)?
I’m doing this project about crystal radios and i dont quite understand what a ground is so can someone tell me what a ground is, what i should do with the radio in simple terms please. Also what relation it has with the antenna because it seems that the ground has alot to do with the antenna.
The antenna in a simple AM crystal radio receiver is simply a long wire, as long as you can make it.
The ground wire, is a wire that connects to the ground (the earth). An older farm house might have an 8′ metal rod hammered into the ground, and the metal case for your fuse box or circuit breaker panel is connected to the 8′ rod.
A modern house will have a copper water pipe bringing water into the house. Usually, the circuit breaker or fuse panel box is connected to this instead.
As a result, historically, “grounding” a radio meant connecting the ground wire of the radio to the copper cold water pipe, under the kitchen sink.
If you have steam or hot water radiators (with piping throughout the house) to heat your house, these are also often grounded, although scraping a bit of paint off them to make the connection is not very aesthetic.
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Bmw X3 Vehicles Can Feature All of your Favorite Radio Stations With Perfect Reception
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About the Author
Wayne Hemrick is an audio technician specializing in the installation of satellite radio for bmws. Wayne is knowledgeable about the many audio options and upgrades for your BMW, including the bmw x3 satellite radio. If you have ever considered upgrading to the bmw xm stereo, this clear explanation of satellite radio, will help you get started.
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