How to Ground a CB Base Station Antenna

Base station antennas are fixed installations for receiving radio signals, and are usually on tall structures placed at a great height over the ground. This makes them easy targets for lightning strikes, as they’re usually high structures made of a conductor. Grounding your base station antenna requires some reading on both relevant regulations and some […]

How to Make Electricity From Radio Waves

Urban environments are filled with kilowatts of radio waves from commercial and government transmitters. Although you can’t make anywhere near enough electricity from this energy source to run your house, you can detect it with sensitive electronic equipment. All antennas create electric currents from radio waves; they produce small amounts of energy. Radio Wave Energy […]

Cheap Ways to Make Antennas Stronger

Whether using wireless networks, watching television or listening to the radio, your data connectivity relies on antennas. Reducing interference, proper alignment and mounting location are among the common issues you face with any antenna installation. Different types of antennas present different concerns, so you need to take different steps to address the specific needs of […]

Do Satellites Use Radio Waves?

Satellites orbiting the Earth communicate with stations on the ground using radio waves. The only difference between the radio waves picked up by the satellite radio on your office desk and those used for traditional FM and AM broadcasts is the wavelength and frequency. The U.S. government allocates specific frequencies for commercial, scientific and military […]

Squelch and Squelch Level

People in the use of wireless walkie-talkie often hear the background noise, squelch, refers to the radio in order to solve the call quality and noise problems, and design of the squelch circuit or squelch function. Squelch function has a different squelch level, according to the actual situation to adjust themselves. Noise characteristics Wireless walkie-talkie […]

What is standing wave ratio?

Standing-wave ratio (SWR) is a mathematical expression of the non-uniformity of an electromagnetic field (EM field) on a transmission line such as coaxial cable. Usually, SWR is defined as the ratio of the maximum radio-frequency (RF) voltage to the minimum RF voltage along the line. This is also known as the voltage standing-wave ratio (VSWR). […]

Advantages of wireless communication

Communications can be simply divided into a wired (including erecting cable, cable or leased telecommunications Line) and wireless (radio transmission into the establishment of a dedicated line) two big way. Compared to establish a dedicated wireless transmission have less investment than the other way, the opening and operation and maintenance quick and simple, the disadvantage […]