Saturday, October 5, 2013

Smartphone GPS Guide

The capacity to prevent end users from adding apps or bypassing the keylogger’s functions is yet another important feature of surveillance programs. Additional requirements include data storage, automated screenshots of the user’s desktop, document tracking and scheduled user access. Monitoring applications can log massive amounts of information. A poorly developed reporting user interface can make even the most robust applications useless. Reporting methods really should be easy to navigate. It is common for the application to have several built-in report functions along with the capability to execute custom searches. The popular applications allow people to easily convert the latest cell phones into a remote listening device by transmitting text messages to remotely control the phone microphone, turn it on, and listen to the mobile phone environment or Intercept Calls and secretly tap into mobile phone calls and listen to conversations. The most important issue isn’t technical, it’s legal. Unless of course


you have permission you are breaking the law to use it. Cell phone tracker software programs are becoming very common and can do a lot more than locate mobiles.


 How To Spy A Cell Phone


GPS Hot Start describes when the GPS enabled device recalls its last calculated position, the satellites that had been in range at the time, as well as the almanac data in memory, and attempts to find the same satellites and calculate a new position based upon the previous information. This is almost always the quickest GPS lock but Hot Start only works if the phone is in the same general area as when the GPS was last switched off. GPS Warm Start is the term for whenever the GPS enabled mobile phone keeps its last calculated location, and almanac used, but not which satellites were in range. It performs a reset and makes an attempt to find satellite signals and computes a brand new location. The GPS receiver has a general idea of which satellites toseek since it saved its last known position and also the almanac data helps determine which satellites are in range. The Warm Start is going to take more time than the Hot Start but not as much as a Cold Start. With GPS Cold Start, the device dumps all the previou


s information, and attempts to find satellites and obtain a GPS lock. This normally takes the longest because there is no known reference information. The GPS enabled smartphone receiver has to attempt to lock onto a satellite signal from any available satellites. So as to have better GPS lock times cellular manufacturers and system providers created Assisted GPS technology. It downloads the ephemeris and helps triangulate the mobile phone general location. GPS Receivers will get a faster lock at the expense of a few kilobytes of data transmission. Assisted GPS, generally known as A-GPS or AGPS, helps the performance of standard GPS in cell phones connected to the cell network. In America Sprint, Nextel, Verizon Wireless, and Alltel all use AGPS. This is a method of using the cell network to speed up finding of GPS satellites. A-GPS assists location tracking performance of mobile phones (and also other connected devices) in a couple of ways: One method will be helping to secure a faster “time to first fix” (T


TFF). Assisted GPS receives and stores information regarding satellite location utilizing the cellular network and so the location information does not require to be downloaded via the satellite. The next way is by assisting locate handsets when GPS signals are weak or blocked. Because GPS satellite signals may be impeded by tall structures, and do not go through building interiors well A-GPS utilizes distance to cellular towers to compute position when GPS signals are not obtainable.


When satellite signals are not readily available, or accuracy and precision is less important than life of the battery, utilizing Cell-ID is a viable alternative to GPS mobile phone tracking. The position of the handset can be computed by the cellular network cell id, that identifies the cell tower the smartphone is using. By understanding the position of the tower, then you can know approximately where the mobile phone will be. However, a tower can cover an enormous area, from a couple of hundred meters, in high populationdensity locations, to several kilometers in lower density areas. This is why location CellID accuracy is less than than GPS accuracy. Nonetheless tracking from CellID still provides quite a good substitute.


Tracking Application Persistence. The tracking software on a mobile phone normally need to be allowed by the user. Based on the smartphone, the software might persist – staying enabled once the phone is activated following being switched off. This specific function might be specially helpfull if cell phone tracking is relevant and you do not want to require the individual using the cellular phone to turn monitoring on and off. An additional factor related to Tracking Application “Persistence” and handset GPS location is the possibility of over using the battery. It is important to be able to remotely modify the frequency of taking GPS position. Selecting real-time or periodic sampling affects both the accuracy of determining location as well as battery life. One common way of controlling battery and data use is Passive Tracking. Some mobile phone GPS tracking devices will store location data internally in order that it can be downloaded later. Also labeled “data logging,” this may retain position data even th


ough the device has traveled away from the wireless network. Passive tracking isn’t a widespread feature built-in to standard handset, but the most recent mobiles often include Passive tracking features.



Smartphone GPS Guide

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