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 ...

After getting his hands on this relic [Gregory Charvat] manage to hack it, converting the receiver into a transceiver. It may be old, but the R-390A is nothing to scoff at. It’s abilities include AM, ...

Relatively few Americans are aware of it, but the United States is home to many commercial/religious international broadcasters that transmit programming worldwide using analog shortwave radio ...

From the receiving side of the circuit, the antenna was made of random wire coupled with the inductor L1 having a single turn while inductor L2 has 4 turns wound around a 35 mm film container. Both ...

AUSTIN, Texas & DONGGUAN, China--(BUSINESS WIRE)--Silicon Laboratories Inc. (NASDAQ: SLAB), a leader in high-performance, analog-intensive mixed-signal ICs, today announced that it is providing its ...