| Paired with an effective directional antenna, a high-performance, two-stage antenna amplifier designed for the VHF FM broadcast band can hel...
All items tagged with Circuit and FM (9)
| The use of the low-cost RFM12 868Â MHz (US: 915Â MHz) ISM (licence-free) radio module with microcontrollers like the ATmega and the R8C13 is s...
| After licensing restrictions were relaxed in many countries for VHF FM band transmitters with 50Â nW transmit power, several small, inexpensi...
| The U2514B is an integrated bipolar radio circuit suitable for digital tuning systems. It contains an FM front end with preamplifier a...
| The U4253BM and U4254BM ICs are integrated AM/FM antenna matching circuits in bi-CMOS* technology. They are intended particularly for car...
| The transmitters is a crystal-controlled, battery-powered, one-chip narrow-band FM (NB FM) model for operation in the 27-MHz band, primar...
| In this instalment we deal with the construction of the synthesizer board, and the operation of the combined keyboard/display/controls uni...
| The greater part of this month's instalment is devoted to the operation of the microprocessorcontrolled synthesizer used to tune the RF...
| Ever since it was first exhibited at last year's Leicester Show, the Aztex 24 cm FM ATV transmitter has created a lot of interesr and I h...