What is GSM?
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| Telecommunications GSM Tower |
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Global System for Mobile communication (GSM) is the most popular standard for mobile telephony systems in the world.is GSM is a cellular network, which means that mobile phones connect to the closest GSM tower which then establishes a connection to the rest of the telco network.
This means that your CAPTOR system would still be able to communicate outside of Malaysia if it is within GSM coverage and international roaming has been activated.
GPRS and SMS
General Packet Radio Service (GPRS) and Short Message Service (SMS) are two forms of communication made available over the GSM network. GPRS communication allows for much more data to be transferred at a lower cost than SMS more frequently. SMS however, generally has a wider network coverage and is more reliable than GPRS.
As your CAPTOR system communicates via GPRS and SMS, it has the best of both worlds. This means better service to you at a lower cost.
Network Limitations
SMS can operate on the normal GSM network, whilst GPRS requires 2G or higher network capability to operate. This typically means that SMS network is much more expansive than GPRS network.
GPS/GSM only tracking systems will not be able to communicate if it is outside GSM coverage, such as within jungles or if your vehicle is hidden within a container. The CAPTOR system, however, can still communicate via radio frequency (RF).
How GSM Tracking Works
Each GSM tower covers a certain area. As you travel from one area to another, say from KL to PJ, the CATPOR system will switch GSM communication from the GSM tower in KL to the tower in PJ. This information is then relayed back to CAPTOR Command. This gives an approximate location of your vehicle, which narrows down the area for recovery teams to search using their RF equipment.
Strengths of GSM
GSM allows for near immediate communication between the CAPTOR system and CAPTOR command. By utilizing GPRS, the CAPTOR system can communicate its position at regular intervals (normally set at every 3 minutes whenever the ignition is on) which allows you as the customer to see trip history and generate reports. An SMS only based tracking system would only be able to do this at a very high cost to the customer.
SMS allows the system to communicate with a wider network coverage than GPRS, serving as an alternate communication platform.
Weaknesses of GSM
GSM is limited by the network coverage and services of the telco, which is entirely outside of CAPTOR's control. Should your vehicle travel outside of GSM coverage, a GPS/GSM based tracking system would not be able to communicate.
GSM is also susceptible to GSM jamming. High-tech thieves carry a hand-held device which jams all GSM communication around a certain distance.
These weaknesses can be off-set, however, with radio frequency (RF). RF allows your vehicle to communicate on our RF network, which is non-dependant on GSM. |