Wireless microphone circuit diagram consisting of transistors 9018

The design of an FM radio transmission frequency band enables compatibility with any FM radio receiver, allowing the high-frequency signal to be transmitted and restored from an audio signal. This technology serves various applications.

Applications of a wireless microphone include:
1. Wireless microphone: Users can sing and move freely, rotating 360 degrees without the hindrance of wires during performances.
2. Radio: Teachers can broadcast lectures live, enabling numerous students to receive the lectures, significantly increasing audience reach.
3. Selling radio control: When selling goods on the street, using a wireless microphone adds novelty and enhances advertising effectiveness compared to traditional microphones.
4. Wireless capability: It allows for discreet listening with headphones from a distance, eliminating the concern of awkward encounters.
5. Wireless alarm: It can be used for unattended monitoring over a certain distance, such as an anti-theft alarm that alerts from a second-floor door to the first floor.
6. Wireless electronic doorbell: Sound can be transmitted wirelessly, and it can be paired to function as a walkie-talkie.
7. Wireless electronic musical instruments: Instruments like harmonicas, erhus, and guitars can utilize radio receivers or amplifiers to enhance sound broadcasting, improving the music experience.
8. Electronic hearing aid: By adjusting the volume of the radio or microphone and using a headset, sound amplification can effectively assist the hearing of elderly users.
9. Small voice lights: The output from a power amplifier can be connected to a speaker or adjusted to control the wattage of 6V or 12V car light bulbs.
10. Reading memory enhancer: Similar to a microphone, this device allows users to listen to their own voice while reading, reducing outside interference and improving focus.
11. Small radio stations: Schools, factories, and other organizations can create their own programs, playing music, news, and notifications for their audience.
12. Television sound transponders: Users can listen with headphones while watching TV without disturbing others, as the headphone cable length can be controlled for convenience.

The FM radio transmission frequency band design is a versatile technology that facilitates numerous applications across various fields. The wireless microphone system exemplifies the convenience of mobility in performances, allowing users to engage in activities without the constraints of cables. This technology significantly enhances communication and educational methods, allowing for real-time broadcasting that can reach a larger audience.

In commercial settings, the use of wireless microphones provides a modern approach to advertising and sales, making presentations more engaging and effective. The integration of wireless systems in security applications, such as alarms and doorbells, enhances safety while providing flexibility in monitoring capabilities.

Moreover, the ability to transmit sound wirelessly opens up possibilities in the music industry, where musicians can perform without physical limitations, thereby expanding the artistic expression. The hearing aid application illustrates the potential of FM technology in improving quality of life for individuals with hearing impairments, showcasing its societal benefits.

The design also caters to educational institutions and organizations, enabling them to broadcast information effectively, enhancing internal communication. Overall, the FM radio transmission frequency band design is a crucial advancement in wireless technology, offering practical solutions across various domains.FM radio transmission frequency band design, it can be used with any FM radio receiver to the high-frequency signal and restores the high frequency signal from the audio signal , thereby completing a variety of purposes. Wireless microphone uses: 1, the wireless microphone: User singing, free to rotate 360 degrees and move, there will be no wires or stumbling while speaking performances, Che Houtui. 2, radio: teacher lectures broadcast live, countless students can receive a radio call lectures, greatly increased the number of lectures.

3, selling radio control: when to sell goods on the street, selling wireless microphone with a certain novelty, will receive more than ordinary microphone good advertising effect. 4 Wireless *: a good concealment and security, with headphones to listen to the radio in the distance, and do not worry about embarrassing scene meet.

5, wireless alarm: unattended certain distance. For example, on the second floor * door on the first floor of the sound effects from the anti-theft alarm. 6, wireless electronic doorbell: Because radio propagation may sound, it can also be spread wireless doorbell sounds, pairing can also be converted into walkie-talkies.

7, wireless electronic musical instruments: the harmonica, erhu, guitar and other instruments sound with radio receiver or amplifier with expanded broadcast can better enjoy music. 8, an electronic hearing aid: by adjusting the volume of the radio or microphone, and then into the headset will sound amplification, can effectively improve the elderly hearing.

9, small voice lights: the output of the power amplifier connected to a speaker change wattage equivalent 6V, 12V car light bulb, adjust the volume together made position. 10, reading memory enhancer: hearing aids and similar to the microphone at yourself, listen to your own voice reading to exclude outside interference, from the focus effect.

11, small radio stations: for schools, factories and other units organized various programs on their own, you can play music, news, notifications, etc., used to listen to the radio. 12, television sound transponders: listening with the headphones while watching TV may not affect others sleep, but by the length control headphone cable.

This means you can not have this limitation.