Radio Basics

Broadcast vs. Hobby Radio

Broadcast Radio is the use of Radio to distribute information one-way to a large population. Examples of broadcast radio include FM Radio, TV, NOAA Radio and more. Hobby Radio can be either One or Two Way radio communications, for an individual and non-commercial use. Things like Amateur TV, CB Radio, HAM Radio and even RC …

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Callsigns

Callsigns are an important part of Radio, as they tell listeners and other operators who everyone is. Callsigns are a system of letters and numbers that identify the name, location and other information about an operator. On the air, operators exchange them when talking and are required to use them frequently to identify themselves. Often, …

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Emergency Calls

Even if you are not an operator, it is essential to know how to send an emergency call. Frequencies First, you need to find a frequency to call on. Depending what type of Radio you are using, there is a different emergency frequency to use. If you own a radio, write down the frequencies to …

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FCC and the ITU

International Telecommunications Commission Federal Communications Commission Mission The ITU’s mission is to enable the growth and sustained development of telecommunications and information networks, and to facilitate universal access so that people everywhere can participate in, and benefit from, the emerging information society and global economy. The ITU assists in mobilizing the technical, financial, and human …

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CW

How Modulation Works

Modulation is the process of converting Data (Morse Code, Audio or Digital Data) into a radio signal that can be sent via an Antenna, this is the primary job of the Radio Transmitter.   CW (Continuous Wave) CW (Morse Code) is sent by turning on and off the “Carrier Wave”, which is essentially a wave …

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How Waves Travel

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Radio Services

There are tons of different ways we use Radio Waves every day.  Here are just a few:

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The Spectrum

In order to better maximize the use of the Radio, the FCC has divided the radio “spectrum” of frequencies into small portions, called “bands”. These bands are named for the wavelength of the frequencies as well as their use. Below you will find a list of the allocations of every frequency to each radio service. …

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