Early radio receivers worked on a principle called Tuned Radio frequency (TRF), patented in 1916. They weren’t very easy to use, requiring each stage to be tuned to the same frequency (until ganged ...

The general public thinks there is one thing called a radio. Sure, they know there are radios that pick up different channels, but other than that, one radio is pretty much like the other. But if you ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The first television receivers were designed to receive BBC transmissions from the Crystal Palace ...

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 ...

Maxim Integrated adds another device for a much effective RF design as it introduces the MAX7042. The MAX7042 is a low power superheterodyne receiver that employs Frequency Shift Keying (FSK). This ...

The TH71111 is a 32-pin, single conversion superheterodyne architecture used for low external component count. It has a low current consumption in active mode and is usually applied to general digital ...