How SafeCell works ?
The SafeCell case works by replacing the original cell phone antenna with the patented SafeCell antenna which redirects radiation away from the user's head. The SafeCell antenna is imbedded in a high quality leather case that can be installed on your phone in seconds. SafeCell case as an accessory provides more space for a new efficient antenna.

A good portion of the signal from the original antenna of your cell phone is wasted by being absorbed in the head; this could be potentially dangerous. SafeCell helps you avoid this waste and potential danger and enables the battery in your cell phone to last longer.

SIGNAL STRENGTH
Because the SafeCell system uses an antenna of higher efficiency, a cell phone operates more effectively with SafeCell installed. The signal strength bars on your phone indicate the approximate strength of the signal received by your phone from the cell station. Generally, the received signal will be stronger with SafeCell installed.

A number of features can affect the signal strength on the phone. These include, but are not limited to, the distance to the cell station, whether the user is indoor or outdoor, the presence of tall buildings or the amount of metal in the walls near the user. The higher efficiency of the SafeCell antenna is achieved because the directional antenna has a higher gain than a normal cell phone antenna, and thus can receive a lower amplitude signal.

SafeCell helps multi-mode phones to stay in the digital mode (Back to FAQ's)
The operation of multi-mode phones is more complicated than the operation of single mode phones. Most multi-mode phones contain one or more of the digital mode systems, and the AMPS analog system as a backup mode. The phone tries very hard to stay in digital mode. This is because digital mode requires much less power (generally 1/5 to 1/100 the power of analog mode), and allows for features that the analog system does not support.

When the phone is having trouble operating in any of the digital modes, it will switch to the analog mode as a backup. This will greatly shorten the battery life.
When using SafeCell on a multi-mode phone you may notice a phenomenon we call "delayed mode switching". This occurs because the SafeCell antenna can be more efficient than the phone's original antenna. This can cause the phone to remain in digital mode longer than it would normally. In these circumstances, removing the SafeCell system causes the phone to instantly switch into the analog mode. As the phone would now be using much higher power, the signal strength would appear to improve. Reinstalling SafeCell causes the phone to return to digital mode (as the SafeCell antenna can maintain contact longer with a far away digital cell site), but the distance may result in lower but acceptable signal strength. This is actually a good thing. By staying in the digital mode, the cell phone saves battery power.

Battery Life
A cell phone uses most of its power for transmitting. This is why a phone can have a three-day standby battery life, but only one-hour of talk time. Digital phones regulate the power used to transmit. When the cell station receives the signal, the cell station sends commands to the phone to adjust the power being transmitted. This allows your phone to use less power when the cell station is "easy to reach" and use more power when the cell station is "hard to reach". This system was designed specifically to extend the battery life of the phone.
As the SafeCell antenna is generally more efficient, this allows SafeCell equipped phones to reach the cell station for any given distance using less power than the phone would otherwise require. The savings in power consumption results in increased battery life. Incidentally battery life is also influenced by the conditions under which the cell phone is operated such as weather.

Testing and Results
SafeCell Wireless, LLC has done extensive testing on the SafeCell system. Additional independent testing was performed at antenna laboratories at two major universities. Some of the tests which have been performed are described below.

SAR Tests
The standard government test for cell phone radiation is called the SAR (Specific Absorption Rate) test. This test determines the maximum energy that is absorbed by 1 qubic cm of brain tissue. This test measures the energy absorbed from the phone at the point in the head where the most energy is absorbed. The government standards require this rate to be less than 1.6 Watt/kilogram (W/kg). For a SafeCell equipped digital phone transmitting at full power the SAR value is typically around 0.05 W/kg. This result is over 30 times better than the government requires.

Total Absorbed Radiation
Measurement of the total radiation absorbed by the human head shows that a SafeCell equipped phone will deflect at least 97% (and often substantially more) of the radiation away from the user's head.

Reflected Power (S11)
Reflected power measurements indicate the efficiency of the antenna with regard to coupling the antenna system to the phone. Some of the transmitted signal is absorbed back into the phone reducing the transmission efficiency. S11 measurements for SafeCell equipped phones are better than or equal to the phone's built-in antenna.

Definitive tests by major university laboratories have confirmed the effectiveness of SafeCell. Any user with a hand-held radiation monitor can also verify the effectiveness of SafeCell by comparing the radiation coming towards and away from the user's head.