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RadioShack (formerly written as Radio Shack) is an American electronics retailer, which was established in 1921 as an amateur radio mail-order business. Its original parent company, Radio Shack Corporation, was purchased by Tandy Corporation in 1962, shifting its focus from radio equipment to hobbyist electronic components. At its peak in 1999 ...
The radio's theory of operation is based on the principle of the Wadley Loop and was one of the first radios marketed by Tandy Corporation to have a digital frequency display. The DX-300 was succeeded by the improved DX-302 in 1980. Picture of the front of a Realistic DX 300 HF receiver in operation
Vintage amateur radio is a subset of amateur radio hobby where enthusiasts collect, restore, preserve, build, and operate amateur radio equipment from bygone years, such as those using vacuum tube technology.
The company has announced that will offer coupons of $10 back. RadioShack Inc. (NYSE: RSH) is going after the Holiday gimmick just like it is any other company. The problem is that, on the surface ...
Digital antenna array (receiver segment) Digital antenna array (transmitter part) Digital antenna array (DAA) is a smart antenna with multi channels digital beamforming, usually by using fast Fourier transform (FFT). The development and practical realization of digital antenna arrays theory started in 1962 under the guidance of Vladimir Varyukhin .
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A typical radio used as a handheld station integrates a transceiver with an antenna and a battery in one handheld package. Most handheld transceivers used in amateur radio are designed for operation on the VHF or UHF amateur radio bands and most often are capable of only FM voice communications transmissions. To conserve battery power, they ...