China - The cell phone jammer is the commonly signal interface http://jammerfun.com device which would be usually used for all kinds of places such as schools, petrol stations, churches, courts, libraries, Convention Center, cinema, hospital, prison, public security, finance, Government, military sites and other places where prohibit the using of mobile phone. The jammerfun.com which is one of the famous online suppliers for cheap cell phone jammers said they have been in this industry for many years and they want to share with all consumers about the typically information about this cell phone jammer.
After the viewing for website http://jammerfun.com/ , it is understood that the cell phone jammer which is the mobile phone signal shielding device on the market can limit phone signal which is 500 meter away from the launching site and radius of the phone signal is more than 20 meter. However, the radius of the signal shielding could be adjustable. On the other hand, the cell phone jammer it merely shielding mobile phone signals but it does not affect other electronic devices. The power if this kind of chep cell phone jammer is 20w to 480w and it is very energy-saving.
For the principle of the operation of the cell phone jammer, the expert cell phone jammer from website jammerfun.com has given people the fully explanation. The working of the cell phone is under a certain signal frequency range which the radio wave would connect the mobile phone with the signal base station. This kind linking would be sure the data and voice transmission by the certain rate and modulation. In a word, the operation of the cell phone jammer is in response to this communication theory. In the working process of the cell phone signal jammer, the jammer scanning the frequency channel of signal from low end to high end with the certain speed. After this affect, the mobile phone¡¯s performance would be network searching, no signal, no service system and so on. And then, people¡¯s cell phone could not work in normal condition. If people want to know more about the working principle of the cell phone jammer, they should browse the website www.jammerfun.com
The commonly working frequency of the cell phone jammer for sale on the website jammerfun.com should be 869~894MHz, 825~960MHz, 1805~1880MHz and 1900~1990MHz. On the other hand, the functional band for the cell phone jammer could be CDMA800, GSM900, DCS1800, PCS1900, WCDMA etc. In the controlling range of the cell phone jammer which is 40 meters diameter, the cell phone jammer uses the DC-DC converter for inputting voltage and 5V output voltage. If people want to purchase the cell phone jammer, they could browse the website before.
About www.jammerfun.com
This website is the professional online seller for all kinds of high quality and cheap best cell phone jammer cell phone signal jammer. People who want to purchase this electrical device could browse their website.
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Website: http://jammerfun.com