The FM modulator circuit (frequency modulation) is built with a Motorola MC1648P oscillator ... I love all about electronics, circuit diagrams and crazy projects that can help us achieve almost ...

[brmarcum] takes us back to analog building block basics with his Frequency Modulation ... s not a tome of FM modulation. He’s broken down the modulation and demodulation circuits into their ...

to a chosen frequency and not to others. Conceptually, most such designs resemble tank circuits. For example, in an AM (amplitude modulation) radio signal, a voice or musical source is converted ...

Field tests are described which investigate the transmission of compatible-single-sideband signals from a typical high-power transmitter for high-frequency ... signals over circuits of some ...

The radio had a “clarifier” which acts as a fine tuning control. With the new setup, the Arduino has to read this, also, and make small adjustments to the frequency. The RF circuits in the ...

VARIABLE condensers are now so commonly employed in radio receivers to tune circuits including a constant ... the desired performance at the highest frequency in the band to be covered.

This low-cost AM transmitter is tunable from 10 to 15 MHz with the help of ½J gang condenser VC1, which determines the carrier frequency of the amplitude modulation transmitter ... through transformer ...

Field tests are described which investigate the transmission of compatible-single-sideband signals from a typical high-power transmitter for high-frequency ... signals over circuits of some ...