The carrier frequencies for AM operate from 530 kHz to 1610 kHz. Many superheterodyne AM radios use a demodulation circuit designed for 455 kHz. When the listener tunes in a station, an oscillator ...

The first television receivers were designed to receive BBC transmissions from the Crystal Palace transmitter in London. This was, incidentally 405-line all-electronic television, then regarded as ...

Overcoming the issues of DC offset in Direct Conversion for Software Defined Radios. Modulation is a process by which characteristics of a high-frequency carrier signal are altered to convey ...

This report describes a rack-mounted superheterodyne receiver covering the medium and long-wavebands, which has been developed by the Research Department for use in conjunction with the Muirhead ...

Superhet on the way out, says analystNews from E-InSiteMarket researcher iSuppli foresees direct conversion ICs displacing the superheterodyne circuit topologies used in the design of today’s wireless ...

The following is excerpted from Chapter 8 of “RF Circuit Design, 2e” by Christopher Bowick. Moving up the scale in complexity, we come to the next evolutionary RF architecture: the ...

FAA (Federal Aviation Administration) regulations generally forbid the use of receivers onboard commercial aircraft because a superheterodyne receiver's local oscillator can radiate signals that could ...