Distinguish between home audio and video "Because the package machine in my house is a famous brand!", "Because the package machine in my house looks good!" ... So, someone will ask: "Is the brand sound equal to the sound?"-Huh? This question is worth thinking about! If I tell you again: "A good speaker is a baby that can be turned on loudly without being annoying. It is a pleasant thing that makes you want to listen after listening for three hours!", I believe friends who still have a positive answer Is getting less and less. Ok, gossip less, now please open your "good voice" set machine, just broadcast a "Cai Qin Old Song", "Teng Lijun 15th Anniversary" or "Mysterious Garden" or something, pay attention to the following phenomena: 1. The vocals are hard, dry, humane and "moisture" insufficiency, appearing dull and dull, quite different from the real voice and lacking in beauty. 2. The sense of low frequency is insufficient, and you don't get the shock you expect (imagine Disco). Or there is a tendency to be fuzzy and fat, and the dragging of mud and water is always unbearable (imagine the strength of the drum when you dance). 3. The human voice has a "buzzing" noise, as if suffering from a severe cold, and it sounds like holding a cookie jar. Let me just mention these three problems. If you hear it, do n’t be surprised at all, because this is the most common epidemic of kits. In fact, this is also very normal-the price cannot be too high, and you have to take into account the appearance and function, you can sacrifice the sound quality. However, if you buy a product from a professional audio manufacturer, the above problems will never occur. Why is the sound quality of the set machine so-so? Regardless of the evaluation of these brands in the professional field, even if it is better at producing speakers, but as the saying goes: "the needle has no two advantages", this manufacturer usually has little success in power amplifiers and CD players. In fact, all manufacturers of packaged machines will fry the products they are good at and those they are not good at, and give them to you. However, if you want to choose the products of professional audio manufacturers, you can choose the best products of each manufacturer separately, wouldn't it get the best results? In fact, most professional manufacturers pursuing excellent quality usually only produce one type of product. For example, some famous brand speaker manufacturers only produce speakers, and never get involved in power amplifiers and CD players. They just focus on the development and production of speakers. It is this persistent spirit that made their products famous internationally. Many people mistakenly think that the above-mentioned imported professional equipment is very expensive. In fact, the system of less than 10,000 yuan can already make you fascinated. Such an investment is actually similar to buying a set of machine, but it is a completely different experience. . Isn't this solution worth trying? Dual-band WiFi module refers to the WiFi module that supports both 2.4GHZ and 5GHz bands. The dual-band WiFi module can operate in the 5Ghz band, which is much cleaner and can easily avoid interfering with each other. The advantage of 2.4G is that it has good ability to penetrate the wall, and the disadvantage is that it is easy to be disturbed. The advantages of 5G are strong anti-interference ability, wide band width, high throughput rate, and strong scalability, but the disadvantage is that 5G is only suitable for indoor small-range coverage and outdoor bridge, and the attenuation effect of various obstacles on it is much larger than 2.4g. Dual Band Router Module,Dual Band Wifi Module,Dual Band Router Embedded Wifi Module,Gigabit Ethernet Router Module Shenzhen MovingComm Technology Co., Ltd. , https://www.mcrouters.com
Dual-band WiFi module has a stronger and more stable Wifi wireless signal, higher transmission speed, and can make wireless devices more power-saving, to meet the future high-definition and big data wireless transmission needs.
When selecting a dual-frequency WiFi module, we should pay attention to these parameters of the WiFi module: size, package, frequency range, data rate, transmission rate, transmission distance, communication interface, power supply voltage, antenna interface, etc.
Dual frequency WiFi module can well meet the functional needs of users, increase the competitiveness of the product, while the WiFi module is easy to use, can shorten the user product development cycle, speed up the product market! Users can make choices according to actual needs!
Choosing a dual-band WiFi module may need to pay attention to the following points:
(1) Consider the transmission power of the dual-frequency WiFi module
The transmitting power of the WIFI module is generally about 18dBm, and the transmitting power of the high-power WIFI module is about 28dBm.
(2) Transmission rate
Consider whether the dual-band WiFi module supports MIMO technology (that is, allows multiple antennas to send and receive multiple spatial streams simultaneously)
(3) Consider the application interface that dual-band WiFi modules can provide, which is also very important.
(4) According to the requirements of the application scenario to choose the dual-band WiFi module, not the higher the configuration, the better, the application is good, excess waste!