apa perbedaan CDMA dan GSM simpel aja pertanyaannya tp ree mw jawabannya yang lengkap, detail n akurat okey
GSM:
standar teknologi eropa generasi kedua (2G)
GSM 900 = uplink: 890 - 915 MHz
downlink : 935- 960 MHz
duplex spacing: 45 MHz
lebar kanal : 200KHz
modulasi : GMSK
multiple access : FDMA-TDMA (satu kanal RF kalo ga salah punya 8 kanal TDMA)
GSM 1800 = uplink : 1710 - 1785MHz
downlink : 1805 - 1880 MHz
Duplex spacing : 95 MHz
lebar kanal RF : 200KHz
multiple access : FDMA-TDMA (s.d.a)
kalo CDMA tu standar teknologi generasi kedua(2G) amerika
CDMA 800 = uplink : 824 - 849 MHz
CDMA 800 = downlink : 869 - 894 MHz
CDMA 1900 = uplink :1850 - 1910 MHz
CDMA 1900 = downlink: 1930 - 1990 MHz
lebar kanal : 1.25 MHz
chip rate : 1.228 Mcps
GSM dan CDMA
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