The CMX994 direct-conversion receiver targets next generation multi-mode software defined radios (SDRs). Features include a VCO for VHF applications, an operating frequency range of 100 MHz to 1 ...

In fact, [Sebastian] even used literature from the triode version of this detector to figure out the values for some of the components. The only active component is a BF256B JFET; the rest are a ...

Based on a low IF architecture, the circuit comprises a RF receiver section, a demodulator, and an audio amplifier that, wherever needed, can be fitted directly to an external earpiece. Indeed the ...

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 ...