Full-duplex radio communication usually involves transmitters and receivers operating at different frequencies. Simultaneous transmission and reception on the same frequency is the Holy Grail for ...

Back in 1966, a suitable toy for a geeky kid was a radio kit. You could find simple crystal radio sets or some more advanced ...

A) With the P1 we regulate the intensity of sound. B) With the P2 we regulate the frequency of reception. C) Optionally: If you want to check the frequency with your PC it will be supposed you make ...

A simple fm radio transmitter circuit which covers frequencies from 88 to 108 MHz. It is built with 3 transistors: BC109, BFR91A and BFR96S. It is quite stable and the output power is around 200 mW.

Lakota radio engineer Alex Lookingelk rides the highways of Wyoming, Montana and North and South Dakota, covering as many as 5,000 miles a month in his Chevy S-10 pickup. In the past seven years, ...

Last month we looked at radio cabinetry. This month we take a look at one of its examples, a 1929 RCA Radiola 46 in a high boy console. David Sarnoff (*1), a Belarusian born immigrant, led the Radio ...