The 3G and GPS features are the main difference between the WiFi model and the 3G model in the iPad, as the WiFi model can only access the Internet via a wireless network, while the 3G model can enter via the mobile network in addition to Wireless internet networks. The strange thing is that the WiFi model is characterized by high quality audio recording than the 3G model. This is a flaw in the design rather than an advantage. ILounge did some tests and discovered on its impact that the WiFi model achieved high efficiency in audio recordings when compared to the 3G model. The site explained that the reason for this problem is the presence of the plastic antenna chip in the 3G model from the back. The site also added that this problem can be ignored unless the user is a fan of FaceTime or if you use an iPad in the Podcast (in short, if you use the microphone a lot). This opinion, which I personally object to, as the feature is supposed to be of high quality and I am the one who decides if I want to use it or not.

We see that the design engineers at Apple decided when designing the iPad 2 to place the microphone above the front camera used in FaceTime, exactly in the middle of the antenna chip located at the back, which in turn improves the reception of radio waves from the network of the adapter, as for the iPad 1 the microphone was located next to Headphone out. It is clear that the plastic antenna chip reduces the efficiency of the microphone.

Changing the materials and components used in the manufacture of both the WiFi and 3G models may be the cause of the problem of sound recording, which appears much cleaner in the WiFi model than in the 3G model, in which the sound recording is slightly unclear and affected by the sound echoes. The strange thing is that this problem exists in the 3G GSM model at a lower rate than in the 3G CDMA model, which has been shown to suffer from this problem at a greater rate.

For those who do not know the difference between GSM and CDMA, this is a simple explanation of the difference between them:

The most important characteristic of GSM technology is its use of memory cards known as SIM card, which is a small card that is easy to install and remove in the phone, and the user stores some important information on it such as his phone numbers and some other files, the user does not need to deal with the phone company when he wants to remove the chip and change it With another, he can also put the chip in another phone that he wants to use, and of course he will find the card chip with all its data stored on it. GSM technology is spreading very quickly and is proving a real success with users.

CDMA or Code Division Multiple Access protocol for transferring data is a protocol used mainly in the United States of America and some other few countries. In this protocol, there is no fixed frequency for the subscriber, rather it is changed from time to time when there is weakness or interference in the received signal in order to ensure an outstanding quality level when Transfer of voice and data between subscribers.

We return to our main topic, which is the iPad microphone problem:

The worst thing about the matter is that this problem is clearly evident to us when we hold the iPad directly in front of us, as is the case when using the FaceTime feature, which is unfortunately the most time we need the microphone!

So if you have an iPad 2, do you really have this problem? Or is it not of great effect? In any case, we recommend that users buy the WiFi version, as it is cheaper and there are no such forms.

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