This section describes a simple wireless microphone . Can be implemented in the FM radio band wireless transmitter . This machine can be used to monitor , signal forwarding and electronic teaching . As the structure is simple , easy to install tune ,

DESCRIPTION Contains information about building a small radio transmitter, which has a PCB 1.75 x 2.5 (45mm x 68 mm) and has a range of about 30 yards or so. The documentation with the circuit says the freq range is 100-108 MHz, but I have found it t

Here is a perfect simple one transistor FM radio to build. Here is a good starter DIY project for anyone interested in audio. This simple radio uses an inductor as both the oscillator circuit and the antenna. It just uses one JFET transistor. There a

Single-channel FM transmitter Figure 1 is a more classic 1.5km single-tube FM transmitter circuit. The key components in the circuit is fired transistor, multi-use D40, D50, 2N3866, etc., working current 60 ~ 80mA. But the more difficult to buy the

1) High-frequency transistors V1 and capacitor C3, C5, C6 to form a three-point oscillator capacitor 2) C4, L form a resonator: resonant frequency is the frequency of the FM microphone launch, according to the parameters of the diagram components tra

STL: a way to feed the audio signal from the studio to launch room, or from a remote feed to the studio equipment. Major manufacturers such as Marti company, SmartiPOT encoder solution, the main products are RPT-40-type RPU transmitter and R-10 type

Business sound system requires a high fidelity sound quality compensation, reduction, to meet the environmental needs of a variety of artistic treatment effect. Professional audio mainly for cultural entertainment, it uses the equipment includes the

An overview: FM radio for good signal to noise ratio, anti-jamming, distortion, frequency bandwidth, large dynamic range, the advantages of rapid development in China, from the central station to the county radio stations were set up FM radio station