microphone

The wireless FM transmitter circuit for a Hi-Fi microphone utilizes a model-ready transmitter module that is capable of stable and effective RF emission at 10 mW. This design enables the realization of a Hi-Fi FM wireless microphone transmitter circuit. The FM transmitter series incorporates a standalone microphone wireless Hi-Fi transmitter module, which includes additional components R7, R8, and C6 to produce high-quality RF frequency. The FM transmitter microphone wireless Hi-Fi module requires a power supply of 12 VDC. The transmission antenna is directly connected to the wireless FM transmitter circuit. The input section of the wireless FM microphone transmitter circuit modulates signals at a level of 100 mV RMS. An IC TL081 is employed as a microphone preamplifier to amplify the signal from the microphone to the required 100 mV RMS level for the wireless FM transmitter module. The signal from the microphone preamplifier circuit is strengthened and regulated by potentiometer P1, while resistors R1, R2, and capacitor C1 provide the necessary power supply to the electret microphone used.

The wireless FM transmitter circuit is designed to deliver high-fidelity audio transmission, making it suitable for various applications such as public speaking, musical performances, and broadcasting. The core of the circuit is the transmitter module, which operates at a frequency range typically used for FM broadcasting. The use of a 12 VDC power supply ensures the circuit has adequate power for reliable operation.

The microphone preamplifier, utilizing the TL081 operational amplifier, is a critical component that enhances the audio signal captured by the microphone. This amplifier is configured to provide a gain that converts the low-level microphone signal into a higher-level output suitable for modulation. The modulation process occurs in the transmitter where the amplified audio signal is combined with a carrier frequency, allowing it to be transmitted wirelessly.

The additional components R7, R8, and C6 are essential for fine-tuning the RF output quality. These components help in filtering and stabilizing the frequency output, ensuring minimal distortion and maintaining the integrity of the transmitted audio. The circuit's design emphasizes simplicity and effectiveness, allowing for easy assembly and reliable performance.

The inclusion of an adjustable potentiometer (P1) enables users to control the gain of the microphone preamplifier, allowing for customization based on the specific application and environmental conditions. The resistors (R1, R2) and capacitor (C1) work in conjunction to provide the necessary DC biasing and filtering for the electret microphone, ensuring optimal performance.

Overall, the wireless FM transmitter circuit for a Hi-Fi microphone presents a robust solution for high-quality audio transmission, making it an excellent choice for enthusiasts and professionals seeking a reliable wireless audio system.Wireless FM transmitter circuit Microphone Hi Fi using a model-ready transmitters, this is because the buil-up transmitter module has a transmission capability of a stable and very effective to emit 10 mW RF. so that the target of Hi Fi FM Wireless Microphone transmitter circuit Hi Fi can be realized. The series can be seen from the FM transmitter Microphone Wireless Hi Fi transmitter module is that it stands alone with an additional R7, R8 and C6 to produce high-quality RF frequency. In the series of FM transmitter Microphone Wireless Hi Fi module requires power consumption of a battery 12 VDC.

Transmission antenna is directly connected with the circuit module Wireless FM transmitter Wireless FM Microphone Hi Fi. Input section of the circuit transmitter Wireless FM Microphone Hi Fi signals to the modulation of 100mV RMS.

A microphone preamplifier with IC TL081 is used to reproduce the signal from the microphone into a signal with 100mV rms level as needed this wireless FM transmitter module. strengthening the signal from the microphone preamplifier circuit in FM transmitter Microphone Wireless Hi Fiini regulated by P1.

R1, R2 and C1 in the range of an FM transmitter Microphone Wireless Hi Fi is used to provide supply to the microphone electred used. 🔗 External reference