How to Distinguish Top 5 Cell Phone Promotion Traps

How to Distinguish Top 5 Cell Phone Promotion Traps

Many of my friends have the same experience to buy cell phone - before purchase, they are confident that they would buy the exact mobile they want while find that there are so many issues about their new cell like signal reception, battery electric quantity or system halted. Here will tell you how to distinguish top 5 frequently used traps in cell phone promotion. Nowadays, wholesale electronics suppliers are everywhere, but reliable providers could be counted on our fingers. No matter how wonderful the ads advertise or shopping assistants introduce, you should take precautionary step.

The first trap is super low radiation. A mobile phone which doesn't transmit radio signal couldn't be used for communication. However, when transmitting, the cell phone emits radiation. If a phone doesn't have adequate energy and bandwidth, the base station will not receive signals such kind of phone has no way to achieve communication. According to standard of cell phone design, a phone used for basic communication should come with GSM 25MHz-18 MHz bandwidth and 15W transmitting power. If you see some ads which claim that the radiation value of their super low radiation phone is only 10 percent of common mobile, you could dispute that it is impossible to use such kind of phones to communicate.

The second trap is super long standby time. Some ads claim that one full charge of their cell phones could be used for up to 15 days if their phone are in standby condition all the time. This is bluffing most of the time. PHS might be capable of offering such long standby time, but most cell phones in the market have no such capability. The standby mode of our electronic gadgets is very similar to computer hibernation - A phone will consume at least 1 - 2W in order to ensure the detection of signal, antenna, inductor and CPU. The longest standby time of 20 gram 1,200 mA sodium cell which are the best on the market is about 10 days. An average Li-ion battery couldn't hold on for more than 9 days. For achieving super long standby, you have to seal your cell in a lab, don't make/receive phone, text no message and press no button. So some mobile gadgets standby time is two times less that the ads said.

The third trap is multifunctional cell phones. The more functions a cell phone has, the more power it would consume and the slower the speed would become. It is just like to add programs to our laptop - the more we add, the slower the operation will become. Multifunctional cell phones have higher rate to be affected by virus.

The fourth is that mobile strap is resistant to radiation. Some ads tell that cell chain is radiation proof and they even provide on spot evidence. All metal chain or vessel could shield SW in the radio, that's why our cell phones doesn't have signals in the lift. Although the sensors behind the chain could not sense any radiation, if we move the sensor one inch, it will detect electromagnetic signals. Therefore, mobile straps only shield small part of skin in our wrists or necks. They couldn't provide effective protection to our whole body. In fact, the theory is quite simple - cell phones could not be used for communication if the chain shields radio in a large scale.

The fifth is the cell phone have super strong signal. Some cell phone suppliers praise that the signal strength of their phone is 10 times bigger that the same kind. In fact, they are bluffing. The signal of our phone is amplified by inside antenna and circuit. Standard detachable antennas have almost the same sensing ability, the difference of between the strongest and the weakest is no more than two times. Plus, their amplification theories are usually the same.

When we purchase our phone, don't rely too much on the introduction of sellers. Or we might waste a lot of money.

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