in cellular mobile communications the forward channel frequency band of amps system is 850 mhz.
in cellular mobile communications the forward channel frequency band of amps system is 850 mhz.
in cellular mobile communications the forward channel frequency band of amps system is?
850 mhz
the term "cellular" is sometimes used to describe gsm services in the 850 mhz band, because the original analog cellular mobile communication system was allocated in this spectrum. further gsm-850 is also sometimes called "gsm-800" because this frequency range was known as the "800 mhz band" (for simplification) when it was first allocated for amps in the united states in 1983. in north america gsm-1900 is also referred to as personal communications service (pcs) like any other cellular system operating on the "1900 mhz band".









































section::::gsm frequency usage around the world.:frequency mixing between gsm 900/1800 and gsm 850/1900.
gsm frequency bands
celcom axiata berhad, dba celcom, is the oldest mobile telecommunications provider in malaysia. celcom is a member of the axiata group of companies. being one of the very few companies in malaysia to originally obtain a cellular phone license, it successfully introduced mobile telephony in malaysia through its art-900 (automatic radio telephone) service, using first generation (analogue) etacs (extended total access communication system) specifications of the united kingdom, a derivative of the us-amps (advanced mobile phone system) technology. the etacs art-900 was started using the prefix "010". celcom now uses the dialling prefix identifier of "013" and "019" and offer digital gsm (groupe speciale mobile), an originally european standard, now largely a world standard for mobile communications. the original frequency band for gsm is 900 mhz, and was soon extended to 1800 mhz to cater for a much wider bandwidth requirements. the 2100 mhz band is used for their dual-channel hspa+ network. celcom is also licensed and has been operating fdd-lte on 1800 mhz and 2600 mhz.
celcom