Wireless Microphone

  
Ql amplifies the output from an electret microphone MIC1. Audio is fed into oscillator Q2, which modulates the signal.
Wireless Microphone - schematic

LI CI is a tank circuit for operation in the 88-MHz region. The antenna is a 6- to 8-inch piece of wire. LI is a variable inductor in the l- range.



 

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News


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    Over the last few years, we have added smaller sites to our network and therefore needed to source some lower-power (up to 2 kW) for these locations. Many of these sites are unmanned, thus it was essential to have a high level of
     16 March 2017
  • Radio magazine
    11, all NRK, P4 and Radio Norway were shut down in that region. All local stations in Nordland continue to transmit on FM, as will the majority of all local radio stations in Norway. NRK also states that there has been no dramatic drop
     23 February 2017
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    Radio magazine One notable exception where FM antenna models are specified is in cases when radiation exposure as calculated through FM model becomes a problem. Since the make and model of translator antennas are specified at the constructio
     20 January 2017
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    KCRW is a six-station cluster consisting of KCRW, Santa Monica, KDRW, Santa Barbara, KCRU, Oxnard, KCRY, Mojave & KCRI, Indio, and KERW, Los Osos-Baywood Park. Additionally it operates seven low power translator stations in the communities o
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    Eric Pere: Generally, operate far more efficiently than DTV or DAB transmitters so, the advantages of water cooling aren't as significant in the FM sphere. If a manufacturer ..... Fewer engineers entering the market today do so as
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  • EE Times
    EE Times Power AmpsThese amplifiers are sold as components of , which are FCC certified for sale in the U.S. The issue, according to the citation, is that although the containing the amplifiers are FCC certified, the power amplifiers do
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