【 Weak current College 】 how to choose the most advanced wireless microphone 】

<br> how to choose the most advanced wireless microphone <BR> one. .Overview <BR> As technological advances of today's radio communications, wireless microphone relative to enhance product quality and function, to mature functional areas: the increasing number of practitioners manufacturers, prices are also declining due to competition, consumers on the trigger .progressive product preferences and universal application. .The author engaged in the sale of professional wireless microphone eight years of experience manufacturing, in which the products are designed to provide the latest technical items, so that consumers in the purchase of this product, to determine how to choose a good value .quality products, manufacturers also provide information, explore how the sales total consumer satisfaction with advanced products. .<BR> II. .Understand the type of wireless microphone <BR> buy products, first class products should have a basic concept can be selected to suit their needs models. .The type of wireless microphone, according to different definitions, can be divided into many different types. .<BR> 1. .Distinguished according to transmitting frequency of use: <BR> a.FM wireless microphone: FM is commonly known as the International FM88-108MHz FM broadcast band. .Early consumer wireless microphone is used to receive FM radio, the system is simple, low cost, but the results, have to meet the requirements of professional quality, can only be a child or student's toys. .<BR> B.VHF wireless microphone: low frequency and high frequency band is divided into two types, the former uses VHF50MHz band, due to lower frequency, using the antenna length is too long, but also the most vulnerable to all kinds of electrical interference of clutter, so this .One type of product, has now been gradually replaced by high frequency disappear from the market. .Which uses VHF200MHz band, due to higher frequencies, the use of a shorter antenna, or even hide the antenna can be designed, convenient, safe and beautiful, by the electrical interference and much less clutter, circuit design is very mature, part popular prices .low, so popular on the market today models. .<BR> 2. .Manner by receiving distinguished: <BR> a. Receive information automatically select the wireless microphone system (Truediversityreceivingwirelesssystem): public opinion in the radio will have a "dead" (Dead-point) of the physical phenomena that the sound output of the receiver, resulting in intermittent or .stable defects, in order to address this defect, professional models must be used for dual antennas and dual tuner's "auto-selection information received" (Automaticswitchingdiversityreceiving) ways to improve. .<BR> B. Non-automatic selection information wireless microphone system (Non-diversityreceivingwirelesssystem): Because of the above models sophisticated circuit design, assembly is more difficult, high cost, low-priced models usually do not use automatic selection for the design of information ., so it can not eliminate the use of wireless microphones in the sound generated interrupt shortcomings. .The models of course can not meet the basic requirements for professional occasions. .<BR> 3. .Oscillatory manner by distinguishing: <BR> a. Quartz lock (Qualtzlocked) models: the quartz oscillator stability transmit and receive precise fixed frequency, the circuit is simple, low cost, is the standard wireless microphone circuit design. .This type of microphone and receiver, only a single frequency pair with a fixed, can not change or adjust the frequency of use. .Phase-locked frequency synthesizer <BR> b. (PLLSynthesized) models: In order to avoid the use of wireless microphone interference from other signals encountered can not use, or for using combine the microphone of the occasion, need to change at any time convenient and fast channel ., so the use of PLL circuit design to achieve this functionality. .<BR> 4. .The distinction according to the number of receiver channels: <BR> a. single channel models: a receiver chassis assembly only one channel of non-automatic or automatic election information election information receiver, the former is almost no market in Taiwan, but the export .market for the cheapest prices, but it is a (large color goods). .The latter use of simple, feature stable, is suitable for a professional setting multi-channel simultaneously, to avoid signal interference with the best models. .<BR> B. dual-channel models: a receiver chassis, the assembly of two channels of non-automatic or automatic election information election information receiver, make full use of chassis space and reduce costs. .The former is the so-called "Asian fighter aircraft," the model, because the design is simple, low-cost mass production of Taiwan's major aircraft manufacturers. .The latter because the agencies and circuit complexity, the internal processing and antenna interference is not easy to mix and match, only a few models in the production of professional vendors have models. .<BR> C. multi-channel models: a receiver chassis, the assembly of more than four channel receiver, most of the receiver module with modular organization design. .The main frame for installation where the use of professional models. .<BR> III. .Choices between price and quality <BR> made recently to Taiwan wireless microphone, the quality improvement of the standards by which consumers are demanding significant improvements: the fierce price competition on the manufacturer because of a big fall. .So some smaller players, in order to win orders, is not committed to the development of more advanced models feature, but is committed to producing crude prices more affordable models to attract consumers to patronize. .As the saying goes: "a penny, a sub-goods," consumers often due to covet a little bit on the cheap price, they buy a poor quality product. .Some consumers or because of to blindly believe in brand names, manufacturers or misled by false advertising. .That money value is not worthwhile. .How to choose a value for money models, the first response to the requirements of the quality of their own position, and learn more about how to evaluate the merits of the principle of quality wireless microphone, can choose to really satisfied with the product. .<BR> IV. .Decision to the manufacturer's technical background <BR> product quality audio wireless microphone products are combined with wireless communication technology in products, and manufacturing technology and equipment wired microphone is completely different areas, so as to create "microphone" wired microphone .not to manufacture wireless microphone manufacturers, manufacturing of wireless communications products manufacturers, does not necessarily create a good wireless microphone, only both long-term professional audio technology and wireless high-frequency technology vendors in order to create excellent background in the wireless microphone. .A few years ago, the famous manufacturer SHURE microphone cable companies, often to promote its wireless microphone wired to like it so well SM-58 microphone, it is misleading advertising! .Because wireless microphone products and other cable products, the biggest difference is the use of results by the environmental conditions are very close, so a high quality wireless microphone, not the short term devised in the laboratory, it requires the use of long-term .in the actual use of a variety of different environments, after the gain and loss feedback to design engineers, and then not through continuous research and improvement, in order to create a truly perfect product. .So choose a good wireless microphone products, we must choose a professional technical background and long-term manufacturing experience. .<BR> Five. .Good quality wireless microphone should have the following characteristics: <BR> 1. .Appearance and aesthetics with ergonomic design based on: possession of a handheld wireless microphone must have a suitable hand grip body size and beautiful shape, were tested traditional bamboo tube or a trapezoidal body, not only does not beauty, nor .too much for hand holding, especially for vulnerable users of sweat, but not easy to grip and slide. .Hand shape is most suitable for the middle of a small diameter than the ends of the double curve modeling within, as the Chinese Goddess of Mercy products bottle or a woman's waist, not only sleek and easy to grip. .<BR> 2. .Hand-held microphone to hide the use of advanced antenna design: The biggest difference between man and monkey is not that support tail. .Wireless microphones are the early end of an external antenna, and advanced wireless microphone to overcome the technical difficulties, no longer used outdated external design, and the most perfect hidden antenna design, the wireless microphone with easy to use, .safety, aesthetics and the advantages will not break failure. .<BR> 3. .Excellent sound head to the assembly: the quality of sound decision to head the merits of the first wireless microphone sound off. .Sound head has two types of moving coil and condenser, moving coil to the load on the vibrating membrane of the coil, the magnetic field in the high-density energy into the sound between the electric signal. .The sound head of the voice coil characteristics have a certain limit. .But basically the structure is simple, cheap and is popular on the market the most popular models. .Condenser microphone is a combination of electronic and high technical level structure of the microphone, the sound is the use of capacitances of the change to ultra-thin gold-plated diaphragm, directly to the sound into electric signals. .Advanced condenser microphone is able to show the main features of the original sound quality is very clear, very wide flat low frequency response, sensitivity is very high, pointing and dynamic range, distortion of small, lightweight, impact, and touch the noise is low, the widely .used in the recording studio, professional stage, on test equipment and other specialized equipment. .The only drawback is the need to provide bias (PhantomPower), but because the power supply itself has a wireless microphone, wireless microphone capacitance head is the best sound mix, so all the advantages into full play in the wireless microphone. .Taiwan MIPRO wireless microphones, is the only sound the assembly head high capacitance products. .<BR> 4. .Microphone to the superior low noise characteristics of touch: the use of handheld wireless microphone with the palm of your hand touch the friction between the noise, impact on the normal sound quality, particularly in sensitive wireless microphone preamplifier itself, making the touch noise .performance is more serious, a technical bottleneck. .Because there is no general wireless microphone professional design experience, and to reduce manufacturing costs, the use of simple circuit, the choice of cheap sound head, poor suspension design and suspension of cheap tube body surface, so sound quality can not overcome the microphone is not clear significant .acoustic noise degradation leaving the touch, so I chose high quality wireless microphones, special attention must choose a very clear sound quality and ultra-low touch noise characteristics. .<BR> 5. .With the elimination of disruption or instability of the sound features: wireless microphone signals emitted by the surrounding environment due to the attraction and reflection, leading to the signals received by receiving antenna dead phenomenon occurs, the output of the sound produced disruption or instability of the shortcomings, especially in .professional setting, this phenomenon can not be used under Xufa Sheng. .To address this shortcoming, only by adopting the most advanced automatic selection information receiving system, to get the best results. .General market popular cheap dual-channel receiver, are not receiving this information automatically selected features, and can not avoid these shortcomings, we can only for a short distance of home karaoke OK occasions. .Place in the professional sound quality or attention to the users of information must be selected to receive the system automatically select models, to meet the requirements of sound quality, get the perfect performance. .<BR> 6. .Can prevent standby loud noise generated by the interference function: Most of the general receiver with mute control (SquelchControl), when the power is turned on and no microphone input or the signal strength of signals below a certain signal to noise ratio, the mute control .circuit will turn off the output circuit, the main receiver completely mute, to prevent the noise output. .When the microphone signal turns on, the receiver immediately mute circuit, so that the voice of the microphone audio circuit output. .But when the power is turned on and off the microphone moment, or in the microphone signal is turned off, occasional or more beyond the mute control intensity of signal interference, the receiver circuit will mute the impact of noise and interference by those starting out noise loud noise. .To address this lack of high-level models will be installed in the so-called "lock audio mute circuit" be suppressed. .The principle is the launch of the microphone signal by adding a fixed ultrasonic frequency modulation signal: while the receiver is also installed inside a discriminator, so, the receiver must receive a fixed ultrasonic frequency with which the microphone signal modulated signals .when to start the output circuit, to prevent interference with other signals or noise features. .To protect your valuable loud noise sound system is not damaged, you must select a tone code locking mute function models. .<BR> 7. .Interfering with the function to use multiple channels: wireless microphone technology with the largest bottleneck is the signal interference problems, especially the more frequently used, the more serious problem of interference, so in the same place at the same time using multi-branch wireless microphone case, .To avoid interference, in addition to carefully choose the frequency of physically interfere with each other and adjacent to the outside world to avoid signal interference, the receiver should have excellent selectivity, transmit and receive radiation harmonics to be filtered to a very clean, in order .to avoid signal interference. .General VHF band receiver, 12 frequencies that could be done about the same time has been very good to use, while Taiwan's MIPRO products that can be used simultaneously without disturbing each of 24 frequencies, even in the specific conditions of the environment, specially designed .and arrangements can be used to achieve more frequency. .<BR> 8. .Be used to solve multi-channel and avoid interference, should be used in digital lock can change the frequency of multi-channel series models: the traditional wireless microphone system is the use of quartz locked fixed frequency design, this model requires a multi-channel use of the occasion or event .to strong signal interference in the case, can not be any change you want to use the frequency, but must replace the entire table. .To address this deficiency, advanced models will be using a phase locked frequency synthesizer (PLLSynthesized) means stored within the transmitter and receiver allows users to dozens of arbitrary transformation frequency, although the high cost of this advanced design .However, users on the distribution and provide a very convenient feature, the lack of resolve. .Energy producing companies in Taiwan have MIPRO this design the most advanced and complete rationalization of prices of most products. .<BR> 9. .Avoid the frequency of "traffic jam" or signal interference, should be used in UHF channel digital lock system products: VHF200MHz band due to the current use of wireless microphone too much, resulting in signal interference and a variety of electrical noise interference problem is getting worse, so the recent .professional wireless microphone gradually increase the frequency of use to the UHF 800MHz band PLL phase-lock circuit by using the default multi-channel switch can be any design, to avoid the noise of other signals and general electrical interference, get the best results. .UHF band as more complex circuit design, the use of high-frequency components are more sophisticated, so the current price is also high volume production of fewer vendors, but the UHF models is consistent with the best selection of professional quality, has become in the future .popular trend. .Taiwan still MIPRO production companies a full range of advanced models and complete peripherals. .<BR> 10. .International quality certification and inspection by telecommunications regulations of products: good wireless microphone products must be certified by international quality manufacturing factories, and also certified through national radio regulations in order to legally sell and use in as. .Consumers should choose to use certified products, quality is guaranteed. .<BR> VI. .Data collection and assessment: <BR> buy the most basic source of information products provided by the manufacturer directory, magazine ads, but generally not complete small-scale equipment manufacturers simply can not provide the correct values, so that consumers of this can not be .to learn from the directory compare. .Some vendors even through catalogs, ads make exaggerated description, misleading consumer psychology. .But the quality is not open our mouths to say it, but to create them, and smart consumers in the information era, as long as the manufacturer's detailed analysis of the actual product used, the actual testing and relatively, you can get the proper quality evaluation. .<BR> VII. .Conclusion: <BR> choose a can fit their own needs, but also satisfied after using the wireless microphone products, in addition to understanding the principle of reference other than the above, the real action is still more to his collection of relevant information and compare the actual expenditure Lyrics .in order to get value for money products. .But changing technology products, features constantly updated with the day, you now have to buy a new product, we must choose the most advanced models, even if a little expensive, do not hesitate to superior advanced products, it is worth .You have the priority!.