Apple unwilling to give up the new rhetoric wifi antenna door
www.bbtantenna.com | 2010-8-4 10:42:57
For Apple's official online presentation in the conference and other smart phones will lose signals in question, more a criticism of the industry to respond to the voice, though Apple has introduced a variety of compensation programs, but Apple is clearly not a sincere attitude.
Perhaps feeling the pressure of public opinion from all quarters, Apple has removed generals online demo, but did not disappear wifi antenna page, but in another article instead.
And previous tests, Apple does not talk about this and other smart phone manufacturers, just plain in the article, said the money spent on the construction of the wifi antenna Apple labs, and the iPhone 4 cell phones for a lot of testing, the results indicate that iPhone 4 is a qualified product. From the article, presentation, Apple still can not accept the existence of iPhone 4 mobile phone wifi antenna design defects, even multi-media and even the German Consumer Association have confirmed that iPhone 4 outstanding signal problem.
Following Apple's official website updated new content:
Apple wifi antenna design and testing laboratories
Every smart phone has a cellular wifi antenna, and each smart phones will be in the grip of circumstances of a particular signal loss. To ensure that our good performance as much as possible the wifi antenna, Apple has invested 100 million U.S. dollars of Shiyan Shi built advanced through these Xianjin facilities, our engineers right iPhone 4 pay a very long time to design and test.
Signal attenuation and disappearance of knowledge
All of the wifi antenna, including television, radio, GPS and mobile phone wifi antenna signal attenuation will occur, and, in most cases, compared to other materials, the composition and density of users hands will result in greater signal attenuation. For mobile phones, the signal loss usually occurs in the user to hold the most sensitive parts of the wifi antenna, while the iPhone, this location in the lower left corner of the phone.
State-of-
Apple has never been thoroughly tested in the absence of products before release, in order to do this, we heavily built wifi antenna design and testing laboratories. These labs have 17 different anechoic chamber, used to accurately measure the wifi antenna and wireless capability.
Tested in the laboratory
Our anechoic chamber associated with advanced equipment that can simulate cellular base stations, Wi-Fi networks, Bluetooth devices and even GPS satellites. The anechoic chamber to test the iPhone 4 in vacuum performance, but also can simulate the presence of human tissue (such as head and hands), and the user process. 1 to 2 years after the development cycle, Apple engineers have spent thousands of hours in the laboratory test wifi antenna and wireless performance.
Performance testing in the field
Apple's engineers in a variety of scenarios, the environment and conditions are on the iPhone 4 tested to ensure its overall performance. In the United States, cities and regions around the world, carried out on the iPhone 4 call quality, dropped calls, call and end the call time of testing. They have a fixed, high-speed and low speed, urban, highway and other conditions tested, but also low coverage and good coverage of the peak and off-peak time of the test, can be said that iPhone 4 were tested under all conditions .
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