VARIABLE condensers are now so commonly employed in radio receivers to tune circuits including a constant inductance that the use, some years ago, of variable inductances or variometers with fixed ...

Somehow [hvde] wound up with a CB radio that does AM and SSB on the 11 meter band. The problem was that the radio isn’t legal where he lives. So he decided to change the radio over to work on the 6 ...

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 ...

For the first time in history, a prototype radio has been created that is claimed to be completely digital, generating high-frequency radio waves purely through the use of integrated circuits and a ...

Intel's announced a new system-on-chip that jams a 3G power amplifier directly onto radio circuits for smaller, cheaper cellular modems. SMARTi UE2p is designed for entry-level 3G phones and ...

The variable capacitor C1 and L1 will constitute the tank circuit which will produce the high frequency signal, the capacitor C1 is variable so that we can produce different frequency signal by ...

Already common in such gadgets as highway passes for paying tolls on the move, miniature radio-equipped circuit cards may ultimately become as widespread as bar codes. First, however, the cost of such ...