What is Spectrum?
Spectrum is specific range of electromagnetic wavelength, which is used in radio, TV broadcasting, Mobile communications and internet facility.
There are different types of spectrums available. They were
2G Spectrum, 3G Spectrum, 4G Spectrum
1) 2G Spectrum:
It is the frequency that is allocated for 2G communication. The frequency spectrum is sold to the service provider for providing us services.
In India, 2G operates with two different technologies GSM and CDMA.
- GSM technology works in the frequency bands of 900MHz [890-915MHz] and 1800MHz [1710-1785MHz].
- CDMA technology works in the 800MHz[824MHz-844MHz] band.
2) 3G Spectrum:
3G Technology is designed for multimedia communication. It provides services like higher data transfer rates. The objective of this technology is to provide various value added services like video calling, live streaming, mobile internet access, IPTV, etc on the mobile phones.
a maximum frequency of 3,000 Hz, the bandwidth is 2,800 Hz (3 KHz)
- The maximum frequency is 3,000 Hz, and the bandwidth is 2,800 Hz [3KHz].
Differences between 2G and 3G:
2G |
3G |
| 2G Technology was launched in the year 1991 in Finland. | 3G Technology was first used in the year 2001 in Japan. |
| The license fee for 2G is normal. | The license fee for 3G is much costlier than 2G. |
| The speed of data transmission is less than 50,000 bits per second. | The speed of data transmission is more than 4 million bits per second. |
| The main function of 2G technology is the transmission of information via voice signals. | The main function of 3G technology is data transfer via video conferencing, MMS etc. |
| The downloading and uploading speeds are up to 236Kbps. | The downloading and uploading speeds are up to 21 Mbps and 5.7 Mbps respectively. |
3) 4G Spectrum:
4G is the short name for fourth-generation wireless, the stage of broadband mobile communications that will supercede the third generation.
Features of 4G:
- 4G is the next step above and the replacement for 3G, offering faster speeds for users who stream media, brows the internet, and download data.
- The speed of 4G means less buffering for the user, often none at all, making it the ideal for users who take advantage of the many features today's smartphones and tablets offer.