The classic solution of wireless FM broadcasting system, wireless FM broadcasting system manufacturer, and wireless FM broadcasting system are developed and produced by Shenzhen Kangmei Audio Electronic Technology Co., Ltd.: Shenzhen Kangmei Audio has developed a digital wireless FM broadcasting system after many years of research and development. , the system is extremely stable and can be used for point-to-point broadcasting, intelligent coding partition grouping and scheduled broadcasting, etc. It comes with a field strength meter function that is convenient, fast and scientific to install.
Kangmei Wireless FM Broadcasting System:
Advancement: The system adopts the domestic advanced FM-SCA FM broadcasting technology, and the all-solid-state transmitter adopts the new microcomputer PLL phase locking technology to ensure no Frequency drift phenomenon, remote control speaker switching on and off is accurate and reliable, and can achieve zone control for different areas. The wireless indicators of the transmitter strictly comply with the relevant requirements and standards promulgated by the Radio Regulatory Commission.
Scientific: The system design is scientific and reliable. The system will ensure the independence of wireless frequencies and will not interfere with other radio wave sources inside and outside the campus. The receiving frequency of the remote control speaker is flexible and adjustable, while ensuring that the speaker No interference will occur. In addition, the system ensures strong maintainability and sufficient scalability. Currently, only schools are considering outdoor broadcasting functions. If indoor broadcasting is needed in the future, indoor broadcasting functions can be easily realized by installing remote control speakers indoors.
Stability: Since the system adopts wireless FM broadcasting, a large amount of wiring system is eliminated, so the broadcasting system line failure caused by line failure that may cause problems in the broadcasting system is also eliminated; At the same time, the equipment adopts FM-SCA subcarrier encoding control technology, so that interference signals cannot turn on the speakers, which greatly improves the stability and reliability of the system.
Economy: The economy of the wireless broadcast system is obvious. It can save a lot of transmission wires and line laying costs during the construction period, and can save a lot of line maintenance during use. work, saving a lot of maintenance costs. The same set of equipment can also be used as a foreign language teaching radio station, improving equipment utilization.
1. The overall planning of the system is designed based on the principles of "digital audio source, automated playback, intelligent management, free expansion, and humanized operation"
. The system uses FM frequency division multiplexing technology and FM-SCA digital encoding control technology to transmit multiple sets of tourist village radio programs at the same time.
2. This system has wireless transmission, wireless transmission, and wireless reception. It does not require overhead digging and wiring. The signal is stable, the amount of engineering is small, and the investment is small. It can be point-to-point/addressing, zone grouping/whole area, and timed. It can automatically play background music/emergency broadcast notification remotely from a fixed point, which is an economical and powerful system solution on campus.
Front-end and signal source part
The front-end of the system consists of a sound source unit, a transmitter, and a professional antenna. All equipment is arranged in the host room. It consists of main audio sources including digital sources output by computer sound cards, DVD analog program sources, etc. Schools can choose to use it according to actual conditions. A digital tuner is equipped for broadcasting news programs in the morning to enrich tourists' leisure life. The computer can automatically output multiple digital audio sources.
Terminal receiving equipment and listening methods
Use 25W addressable wireless FM speakers to listen. The built-in preamplifier and power amplifier of the speaker are all-in-one power amplifiers with fixed impedance output, and the sound quality is as beautiful as It has the effect of professional sound, and at the same time, the speaker can be equipped with a remote control to amplify the volume of local sound sources to meet the auditory requirements of teaching. The lower end of the FM speaker is equipped with a transistor, which can display which channel the music currently played by the speaker comes from.
Features of Kangmei Wireless FM Broadcasting System:
1. Wireless transmission: FM-SCA wireless frequency modulation signals are loaded in the air in the form of carrier waves and transmitted to the surroundings to realize the transmission and automation of all signals. Management control, no need for overhead digging and wiring.
2. Any partition: the unique arbitrary partition function can realize independent control and arbitrary combination of multiple areas
3. Each point can be independently addressed: point-to-point can be realized Control, control the power switch of the speakers of any grade or class, and can turn them on and off independently or fully on and off.
4. Scheduled broadcast: The year, month, week, and day playlist can be set according to the broadcast content and listening needs, and the system will automatically schedule unattended playback.
5. Automatic playback: The computer can automatically play at a scheduled time according to the program list to achieve unattended operation. The system automatically turns on the power of the FM speakers at each point in the corresponding area before playing, and automatically turns off after the playback is completed with a delay.
6. Long-distance speech: Outdoor long-distance speech can be achieved through wireless microphones. It is very convenient to use with the wireless remote control system.
7. Insertion at will: During the playback process, the user can stop the scheduled playback at any time and insert other programs at will. After the insertion is completed, the system will continue to play according to the program list.
8. Beautiful sound quality: FM broadcast audio range is 30HZ-14KHZ, and the distortion is small, generally 0.6; while the fixed-voltage broadcast system audio range is 200HZ-12KHZ, and the distortion is 8.
As an enterprise specializing in the research and development and production of intelligent products for villages/campuses/factories, our company combines its many years of accumulated experience in the field of audio product research and development and has been focusing on the development of education for many years, fully considering the village /Campus/work area needs and the limitations of traditional products currently on the market, the "Village/Campus/Factory Addressable FM Broadcasting System" finally came out of the laboratory after a series of debugging processes. In just a few years , has been fully recognized and praised by the market, providing a brand new broadcast concept for tourist villages, greatly improving the intelligent addressable FM broadcast system for tourist villages. Based on comprehensive consideration of the needs of tourist villages, the company's wireless With years of technology accumulation in the FM system, we have developed a new tourist village audio broadcasting system. Its substantive feature is to distribute wireless FM signals to all corners of tourist villages through wireless transmitters, and arrange addressable receiving speakers in parking lots, scenic spots, roads between scenic spots, squares, etc. in tourist villages. Under the management of the computer system in the central computer room, broadcasting is automatically carried out at fixed points, timed, and partitioned. It can effectively reduce the workload of managers and enrich the content of broadcasts. Dahua applies the broadcasting system to factory operations.