Wireless FM manufacturers

Wireless FM radio manufacturers Wireless FM stereo from Shenzhen, Hong Mei Electronics Technology Co., Ltd. developed the production: Shenzhen, Hong Mei Audio Electronics Co., Ltd. is a research and development, manufacture and sale of "digital audio sound, public address systems, active waterproof frets, there Source ceiling wall speakers, explosion-proof horn, horn speakers, AV home theater, multimedia audio active, professional sound stage, sound and multimedia professional stage active professional outdoor mobile sound "as one of the high-tech enterprises, the China Audio Industry Association governing units and the China Enterprise grade credit unit, has won China recognized brand names, Chinese audio brand, Shenzhen and other authoritative honorary title of brand-name products, the production of deep Combibloc audio brand products enjoy a high reputation in both domestic and foreign markets, products sell well in many countries and regions. What is FM radio: From the application level is concerned, FM radio into wired and wireless FM radio FM radio, FM radio use cable transmission medium is a coaxial cable, closed circuit television through existing lines, the different audio modulated onto a different On the FM carrier, multi-channel audio, television signals, control signals to share CATV (cable television) transmission network, with cost savings, easy construction, high stability, full use of resources, etc., it has been widely used in urban and rural [program ], build and transform Scenic / campus security command and other emergency broadcast system; wireless FM radio is an audio signal by modulating, amplifying and transmitting, etc., converted into an electromagnetic wave way wireless transmission by air, which without geographical restrictions, without environmental impact, without complicated wiring and other advantages will be loved by the majority of users, more simple construction, listen flexible, easy expansion, cost performance characteristics of a construction of urban, rural, tourist attractions emergency security command mainstream broadcast program. Broadcasting (radio broadcasting) is transmitting sound, image communication tools via radio waves or wires. By said radio broadcasting radio waves to transmit programs by wire transfer programs, said cable broadcasts. FM radio is mounted by the audio signal to the high-frequency carrier, the carrier frequency changes with changes in the description of the audio signal, the audio signal to be transmitted in a manner widely. One: Introduction: imported single chip, the US digital control coding; stable and reliable, does not appear due to off can not afford to appear (Banyejijiao) phenomenon. This receive Speaker comes with LCD display "Signal Level Meter Display" function, easy installation, measure the signal strength of each installation point. (This feature is unique to the country ACE) 1, the system overall planning of "audio digital, broadcast automation, intelligent management, expansion of liberalization, operating humane" design principle. The system uses FM modulation frequent division multiplexing, the US digital coding control technology can simultaneously transmit multiple sets Scenic / campus radio show. 2, the system of wireless transmission, wireless transmitter, wireless receiver, without digging overhead wiring, signal stability, small quantities, less investment point to point / addressing partition group / region, time Dingque designated remote automatic Autoplay background Music / emergency broadcast notification, campus / resort in the most economical, most powerful set of system solutions. Two: the front-end and front-end signal from the audio source part of the system unit, transmitters, professional antenna, all devices are arranged in the main computer room. Digital source from the main source including a computer sound card output, DVD simulation program source, and other components. Schools can choose to use the actual situation. Configuring a digital tuner for broadcast morning news program, leisure time enrich the lives of tourists. The computer can automatically output multi-channel digital audio. 2.2.1 signal transmission and transmission system 2.2.1 intelligent programming FM transmitter by transmitter and antenna according to Scenic / Campus / Campus / rural / plaza in the room farthest away from the host of a fret 2 km away from the main computer room far, we have matching transmitter 50W, 50W transmitter coverage generally: around 2 km radius away, complex environment can not predict the extent of the scene, so the transmitter power is larger than the optional insurance, to facilitate future expansion in space. Select the transmitter power distance is generally close to the size of the distance, farther away from the transmitter power is greater. 2.2.2 Enhanced transmitting antenna antenna selected enhanced transmitter antenna, based on long experience in engineering, the antenna and transmitter with 100W or less play the most extreme functions, aluminum alloy, corrosion, rain, moisture, the strong gain and a height of 1.5 m. 2.3 Terminal receiving equipment and listening mode 2.3.1 resort / school / village / square: Resorts uses 25W-45W-65W addressable speakers to listen to FM radio, built-in pre-amplifier and speaker amplifier stage belongs to one machine fixed impedance output amplifier , beautiful sound achieve professional sound effects, but also through speakers designed with a remote control, to zoom in on the local source volume to meet the requirements of teaching hearing. FM Speaker lower end with transistor can display the current speaker to play music from which channel. 2.3.2 Scenic / school / village / plaza each walkway and green belt: walkway is scenery sightseeing tourists must pass through the place, usually when looking at the scenery, visitors belong to relax state, lawn speaker installed in the aisle for the usual play some background music, or rest, you can listen to broadcast domestic and international news, the tourists were concerned about the social events of. As well as the usual leisure life. (Root grip the needs of customers can be added) III. ACE digital wireless FM radio system features 1, the wireless transmission: the air carrier in the form of load FM-SCA radio FM signal to transmit around, realize transmission and automated management control of all signals, without digging overhead wiring. 2, any partition: A unique feature any partition can be any combination of independence and control multiple areas. 3, each individually addressable point: can achieve point to point control, control any grades or speaker of any class of the power switch, and independent switch fully closed or fully open. 4, regular radio: according to broadcast content, hearing need to set the year, month, week, day playlist, automatic timing system for unattended playback. 5. Auto Play: The computer can be a single automatic timing play under the program to achieve unattended, the player points before the system automatically opens the corresponding region of FM Speaker the power to delay automatic shutdown after playback is done. 7, remote speech: wireless microphone can be achieved through long-distance outdoor speech. With wireless remote control system is easy to use. 8, random spots: During playback, the user can always stop the timer playback, random insertion of other programs, after the end of the spots, the system is still in accordance with the Program to continue playing. 9, beautiful sound: FM radio audio range of 30HZ-14KHZ, small distortion, generally 0.6%; and constant pressure in the range of audio broadcasting system 200HZ-12KHZ, distortion of 8%. 10. Remote Speaker: You can customize the remote control to select the terminal classrooms playback channels. 11 software and hardware dual control all functions can be controlled via broadcast software, not open when broadcast control computer also available offline, pure hardware control. Computer control priority when the computer is not on, the coding control host control. 12, supports a variety of popular audio formats: such as mp3, mpg, dat, wav, mid, avi, etc., can be connected to a media source recording (such as CD, VCD, deck, radio, microphone, etc.). 13, the operation is simple: broadcast control software is powerful, user-friendly interface design, easy to learn. 14, anti-interference ability: FM radio to FM, less susceptible to outside influence radio and FM broadcast compression technology, it can filter out the interference. 15, multi-channel audio output simultaneously: the user can choose to play multiple programs at the same time according to the actual situation of up to six simultaneous audio output. 16, the system capacity is infinite: the number of the receiving device is not limiting in the signal range can be installed at countless receive only speakers. 17, emergency alarm: A unique emergency broadcast region, forced the broadcast function, when the short-circuit signal to the fire center to host will automatically activate the transmitter to open the speaker to play a tough opening alarm signal. 18, spots Recovery: During playback, random spots, commercials end allows the speaker to continue the previous state and then work. 19, remote management, addressing: Cockpit can be any combination of arbitrary remote school, a region, a switch only speaker. Speakers can set their own reception reception frequency, area code (packet number), single number and volume, digital display. Receiving Cabinet Column can close remote control, regulate single frets sound volume, frequency, area code (packet number) and the like. 20, equipment intelligent management control: broadcast control software, coding control computer, stereo modem can be intelligent management of all front-end device power, automatic timer switch, without duty. 21, the remote control receiver speaker function (1) the use of advanced microcomputer control technology coding, multiple anti-jamming technology, error-free; can arbitrarily set the frequency, area, volume, and has a digital display, setting the group number and a single number at the same time, Cockpit controlled by the host computer or coding region may be any combination of switches, a district, a receive-only speakers switch, point to point control. (2) with an RF input, line input and microphone input, you can insert a microphone, MP3 and so on. (3) Full hardware structure, control the curing process on the chip, the maintenance-free, free from viruses. Fourth, the system design background According to the National Bureau of Statistics, in 2005, tourist arrivals in China reached 120.29 million passengers, tourism foreign exchange earnings reached $ 29.296 billion; the number of domestic tourist trips to reach 1.212 billion passengers, domestic tourism revenue reached 528.6 billion yuan; international and domestic total tourism revenue of 768.6 billion yuan, an increase of 12 percent over the previous year; each top statistical indicators were a record high. With the deepening of economic reform and the people's living standards improve, we have been an unprecedented development of tourism for the country's spiritual civilization by the light add to the color, push the "harmonious society," the building process. But in recent years tourism accidents, Beijing Miyun Lantern Festival night in a park no stampede stampede Huayin, Shaanxi, Hebei Laishui wild three Wave Flood emergencies, Wenzhou, "7.28" fire accident, etc. are all creeps up, resulting in travel safety issues itself has become an important topic of tourists and tourism enterprises concerned. To this end, the National Tourism Administration has requested injunctions tourism enterprises to strengthen security facilities from various angles, to ensure the safety of tourists travel in prime time. So, how to ensure the safety of tourists? How to build an emergency safety mechanism and system? How to achieve Scenic / campus safety tracking management? Scenic / campus emergency broadcast is specifically for smart Scenic / campus developed resorts can notice the security situation, the resort safe emergency evacuation, staff unified control and command of the emergency broadcast system with a powerful, simple to set up, easy to use, for and strong features. Scenic / Campus Emergency intelligent broadcasting system in-depth research on the basis of tourism security issues, according to tourist attractions / its own characteristics and development direction of travel of the campus broadcast, specially developed set of "emergency security evacuation, resorts tracking management, attractions partition broadcasting "in one of the intelligent broadcasting system, the system uses VC programming, microprocessor control, SCA subcarrier and other advanced science and technology, to achieve the" audio digital, broadcast automation, intelligent management, expansion of liberalization "four modernizations broadcast new standards, build unattended automatic background music broadcasting platform. Between existing broadcast transmission and resorts easy wiring problems in the tourism Broadcast difficult place to play, can not meet the needs of the tourism industry, there are many defects. In what way can make broadcasting system free wiring (including power cord), the industry put forward a number of proposals but ultimately did not form a reasonable and effective program can be implemented. We first proposed in the country "free wiring Scenic / Campus Emergency intelligent broadcasting" architecture, and according to this line of thinking developed a digital wireless smart set of unique features and proprietary FM public broadcasting system, to give time to the promotion of tourism praise Scenic / campus and passengers, and has been favorably received by the industry. "Free wiring Scenic / Campus Emergency intelligent broadcasting" is our unique, we are in a whole new way of thinking and modern equipment leading travel guide broadcasting market. Our broadcasting system fully into account the needs of tourist attractions on the performance and design ideas are unique: First, no wiring; the second is addressable speakers, each speaker has an address, can be automatically controlled by computer software; Third is a digital broadcasting system tray a host can simultaneously output multiple sources, you can set the year, month, week playlists automatically play every day, truly unattended; four is compatible with a variety of audio file formats, without conversion to solve a booming tourism industry problems to be solved. Five: Scenic / Campus Intelligent Broadcast System Solutions noted that these issues Scenic / audio broadcasting system on campus, according to the needs of our tourist attractions / campus and future trends, has proposed some solutions. Such as: wireless FM transmission; the use of resources of the computer system automatically broadcast management system and so on. The company as a professional in resort / school / plant intelligence product research and development company, with its years of accumulated experience in audio product research and development plus years has been focused on the development of education, give full consideration to the desired resort / school / work area and limitations of traditional products currently available in the market, "area / campus / factory addressable FM radio system" after a series of debugging process, finally out of the lab, just a few years time, the market has been fully affirmed and praise for the wide scenic / campus provides a new notion of broadcasting, greatly enhancing the tourist attractions / Campus intelligent addressable FM radio system is considered Scenic / campus needs, based on the use of the company in wireless FM many years of accumulation of technology systems, developed new tourist attractions / campus audio broadcasting system. Its substantive features, through the wireless FM radio transmitter signal divisions to tourist attractions / campus every corner speakers will be addressing the reception arranged in tourist areas / campus parking lot, attractions area, the road between the various attractions, squares etc. place, under the management of the central office computer systems, automatic, fixed, regular, partition broadcast. It can effectively reduce the workload of managers, rich content broadcast. Maximizing the broadcast system being used in factory jobs. ACE Inc. All rights rights reserved. Any technical advice related audio equipment, wireless FM radio, digital IP network broadcast so can be the point of consultation.