longeight
Parking Attendant
Posts: 2
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posted August 20, 2014 05:22 AM
new mobile device help us in many ways
We could see people use cell phone everywhere. Cell phones bring us
convenient lives, but also trouble at the same time. When we want to
enjoy a meal or coffee and quietly read, someone near us will start to
talk to his cell phone loudly. It will happen in many public places.
For example in the movie theaters, tt's almost impossible to catch a
movie without having the experience interrupted by the sound of a cell
phone ringing. The situation is getting worse when more and more
people use cell phone. To get back to our peaceful lives, a backlash
against the cellular nuisance has already begun. One of the ways is to
install a mobile phone jammer. In fact, many governments across the world are
now
considering imposing etiquette on mobile gabbers in public spaces by
legalizing technology that blocks cellular signals.
Cell phone jammers, most of which cost less than USD1000, have been
around since 1998. It can block signals in a room about the size of a
movie theater. The mobile
phone jammer sends out a low-power, encoded radio signal or modulated
radio wave. Jammers work in one of two ways. Some devices set their
signal to the same frequency
as pagers and mobile phones, cutting off communication between
handsets and base stations. Others work as electronic filters that
fool mobile phones into thinking
there are no frequencies available to make or receive calls.
Manufacturers of the devices say the jamming only affects the
designated area (most radii are a couple
dozen to several hundred feet) and works only on cellular
transmissions.
Sounds like the perfect solution to pesky phones, right? The problem
is, mobile phone blocker remain
illegal in many countries. The tide, however, may be changing. This
past spring, both Hong Kong and Canada announced they would consider
legalizing jammers in an effort to curb bad phone behavior in public.
Around the same time, the
leaders of India's parliament revealed they had already installed the
devices to avoid interruptions during sessions.
Here is a great mobile phone signal jammer, the 4 Band 20 Meters Portable GPS Cell Phone
Signal Jammer, model number S805047. This product can be used in any
place where mobile
phones and GPS are prohibited to be used!
Cover interface standards: Cell phone signal (CDMA, GSM, DCS, 3G), GPS
(1570-1580MHz)
Total output power: 4W
Effective range: Radius Up to 20 Meters.
Work time: 90 minutes, this jammer can continue to work when charging,
Support being powered by charger or car cigarette charger.
Every band frequency can select output power.
All the TX frequencies cover downlink only.
Technical Specification
Radius range: 2-20M depending on the mobile service provider's network
condition
Europe and Middle East Market
-GPS: 1570-1580 MHz
-GSM900: 925-960 MHz
-GSM1800: 1805-1880 MHz
-3G: 2110-2170 MHz
American and Asia Market
-GPS: 1570 - 1580 MHz
-CDMA GSM: 850-960 MHz
-DCS PHS: 1805-1990 MHz
-3G: 2110-2170MHz
Temperature: -10℃ to +50℃
Humidity: 5% to 80%
Power supply: AC100-240V/DC12V
Continue using time:Around 90 minutesWeight: 0.4KG/PCS
Weight: 0.4KG/PCS
Dimension: (W*H*L): 32*112*62mm (not include antennas.)
Product Notes
The jamming distances we mentioned on website are for customer's
reference only. The actual jamming distance will be varied depending
on the signal strength and the
use location and if full charges, etc
  
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