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    • Fixed Satellite Service

      Fixed Satellite Service

      Fixed Satellite Service (FSS) is a type of mobile telephone service that allows users in a specific area to make and receive cell phone calls. FSS systems or cell phone towers are placed in strategic, fixed locations and provide service to thousands of individual users simultaneously. Generally, FSS systems provide reception for several square miles

    • Business Band

      Business Band

      Business band stands for a series of frequencies in the UHF and VHF two-way radio bands, which are exclusively reserved for businesses to communicate within limited ranges. Of course, not just anyone can use this bandwidth. Anyone that wants to use the business band must first receive a license from the Federal Communications Commission, also

    • Crystal Radio

      Crystal Radio

      The crystal radio is a rudimentary radio receiver that can be made from a few easy-to-obtain and inexpensive parts. It is unique for this type of radio does not require a battery pack, has no moving parts, and can be built using ordinary household materials, yet it actually works. The only power it receives comes

    • Police Scanner Codes

      Police Scanner Codes

      A police scanner is basically a radio scanner that is also a receiver that receives wireless radio signals. A scanner identifies these wireless radio waves. A scanner can identify numerous radio signals and bands concurrently making it easy to keep track of many channels simultaneously. The phrase “police scanner” derives from the fact that the

    • Forward Error Correction (FEC)

      Forward Error Correction (FEC)

      Forward Error Correction (FEC) is a type of error correction that involves encoding a message in a redundant way, which allows the receiver to reconstruct lost bits without the need for retransmission. How Forward Error Correction Works FEC works by adding “check bits” to the outgoing data stream. Adding more check bits reduces the amount

    • Linear Amplifier

      Linear Amplifier

      Linear amplifiers are electronic circuits that have an output that is proportional to the input of the device while providing additional power to the load. A linear amplifier is normally a variant of a radio-frequency (RF) power amplifier and is used frequently in amateur radio and in laboratory and commercial audio equipment with an output

    • Baseband


      Generally, a transmission signal contains more than a single frequency. This is to say that there might be several different frequencies linked together or else superimposed on each other. This is just the way all telecommunication systems function. For example, with today's communication technology it is virtually impossible to send low frequencies without experiencing any

    • What is a Momentary Switch?

      What is a Momentary Switch?

      A common question asked by new student of electronics is what is a momentary switch? The short answer is that a momentary switch is a unit capable of turning any electronic device to either an on or off state when an end-user presses the switch. This type of switch can actually represent one of two

    • IC Design

      IC Design

      In the modern world of data and information, computer systems need circuits that are able to process and transfer that information. Because of this, a great deal of resources and innovation go into creating more advanced circuitry in order to increase data transfer rates and make computer systems smaller. This article will demonstrate how integrated

    • Piezoelectric Transducer

      Piezoelectric Transducer

      A piezoelectric transducer is a device that converts electricity into mechanical forces or vibrations. Although piezoelectric transducers have other uses, ultrasonic devices require them. Piezoelectric transducers usually converts electricity into vibrations and vibrations into electricity, although this is not always the case. They rely on two phenomena known as “electrostriction” and “the piezoelectric effect.” How

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