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Classes of FM Radio Stations

The Federal Communications Commission is responsible for licensing the use of the radio spectrum. For the FM band, which spans from approximately 88 to 108 MHz, it not only licenses individual channels but also issues licenses that determine how much power a given broadcaster can use and how tall t

Posted on:11-05 View:1216
How to Use Signal Generators for Ham Radios

The building and maintenance of amateur or "ham" radio equipment requires specialized skills. Ham operators, also called "hams," are licensed to do this work, which includes using a signal generator to adjust receiving and transmitting circuits. The signal generator provides a c

Posted on:11-04 View:2127
AFCCE Symposium Examines AM Broadcast Band

Members and guests of the Association of Federal Communications Consulting Engineers gathered at the Holiday Inn Key Bridge in Rosslyn, Va., Thursday to convene the organization’s second annual technical symposium. The event’s focus was overwhelmingly on problems besetting the AM broadcast ba

Posted on:11-04 View:195
RF digitiser now has power measurement option

A ‘fast power servo’ technique helps customers reduce the cost of test, says Cobham Wireless (formerly Aeroflex wireless). Option 194 on the PXI 3030 series RF digitiser results in a 57% reduction in servo loop time when applied to an LTE signal, claims the company. This has given one customer, RFM

Posted on:11-03 View:155
How to Calculate Wavelength of Antennas

The simplest antennas are straight, long pieces of wire. A dipole antenna takes the concept a little further, using two pieces of wire held together in the middle by an insulator. You can calculate the range of wavelengths for a dipole antenna with a simple formula. The antenna is sensitive to a ba

Posted on:11-03 View:1560
China’s Shiyan TV Upgraded with ATEM 2 M/E Production Studio 4K

Blackmagic Design today announced that Shiyan TV, a regional broadcaster in the city of Shiyan, Hubei province, installed the ATEM 2 M/E Production Studio 4Ks with ATEM 1 M/E Broadcast Panels as the main and backup switchers for its main production studio. Built in 2007, Shiyan TV’s main prod

Posted on:10-31 View:573
Homemade TV Antenna Booster

The purpose of an indoor TV antenna is to pull in the television signals being sent by TV broadcast towers. These broadcast towers are typically many miles away from the average household--causing the signals reaching the TV antenna to be too weak to display properly. A homemade TV antenna booster

Posted on:10-31 View:574
How to Hook Up an Amplified HDTV Antenna to a TV

An amplified high-definition television antenna contains an internal, powered booster that improves channel reception. The antennas are capable of receiving both standard digital channels and high-definition ones. Amplified HDTV antennas include VHF dipoles and a UHF loop for picking up channels on

Posted on:10-30 View:1793
100W single output AC-DC power supplies

TDK-Lambda has introduced its new ZMS100. This is the first unit in the ZM series of sub-300W power supplies. Designed and developed in the UK, the ZMS100 single-output power supply conforms to the new IEC60601-1 3rd edition medical standard with input to output isolation of 4kVac and 2 x MOP

Posted on:10-30 View:197
Antenna Resonance & Bandwidth

Two major factors associated with radio antenna design are the antenna resonant point or centre operating frequency and the antenna bandwidth or the frequency range over which the antenna design can operate. These two factors are naturally very important features of any antenna design and as such t

Posted on:10-29 View:548

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