Page 209 - CITS - Electronic Mechanic - TT - 2024

ELECTRONICS MECHANIC - CITS

Criteria CDMA GSM

Technology CDMA is based on spread-spectrum GSM operates on the wedge spectrum. It uses
technology, which makes the optimum use both time division multiple access (TDMA) and
of available bandwidth. frequency division multiple access (FDMA).
TDMA provides multi-user access by cutting
up the channel into different time slices,
and FDMA provides multi-user access by
separating the used frequency.
Security CDMA is more secure than GSM. GSM is less secure than CDMA.
Global reach CDMA is used in the USA and some parts GSM is used in over 80% of the world network
of Canada and Japan. CDMA is used only in over 210 countries.
by 24% of users worldwide. GSM is used by 76% of users worldwide.

Data Transfer CDMA has faster data transfer than GSM. GSM has slower data transfer as compared to
Rate CDMA.

Radiation CDMA phones emit less radiation than GSM phones emit continuous wave pulses
exposure GSM phones. and emit almost 28 times more radiation than
CDMA phones.
IMEI

The IMEI (International Mobile Equipment Identity) is a unique number to identify GSM, WCDMA, and iDEN
mobile phones, as well as some satellite phones. Mostly phones have one IMEI number, but in dual SIM phones
are two.

The IMEI is only used for identifying the device and has no permanent or semi-permanent relation to the subscriber.
The number is used by the GSM network to identify valid devices and therefore can be used for stopping a stolen
phone from accessing the network in that country.
How toTrack Phone Using IMEI No.
Method 1: IMEI Tracker by I Staunch
Method 2: Contact Your Mobile Carrier
Method 3: File a Police Report

Method 4: Contact the Manufacturer
Additional Strategies and Tips
In addition to the methods mentioned above, there are several additional strategies and tips that can enhance
your efforts to track a lost phone using the IMEI number and protect your personal data.
Act Promptly: Time is of the essence when it comes to tracking a lost phone. The sooner you report the loss
to your mobile carrier and law enforcement, the higher the chances of successful recovery. Prompt action can
prevent the thief from selling or resetting your device.

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CITS : E & H - Electronics Mechanic - Lesson 118 - 126