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AMPS

AMPS. ( Advance Mobile Phone System ). Sejarah AMPS. Generasi pertama teknologi selular yang diperkenalkan pertama pada akhir 1970 (1978) di New Jersey dan Chicago Amerika Serikat.

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AMPS

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  1. AMPS ( Advance Mobile Phone System )

  2. Sejarah AMPS • Generasi pertama teknologi selular yang diperkenalkan pertama pada akhir 1970 (1978) di New Jersey dan Chicago Amerika Serikat. • Di Eropa diperkenalkan pada awal 1980 dengan nama TACS dan NMT. (Total Access Comunication System, Nordic Mobile Phone) Dasar Telekomunikasi presentation - AMPS -

  3. What is AMPS ? • Teknologi selular 1G (Wireless Analog Generation). • Pioner of Cellular Telecomunications. • Analog voice service, no data service. • FDMA-based analog system. • Low capacity of subscriber per cell. Dasar Telekomunikasi presentation - AMPS -

  4. AMPS Weakness • Mobilitas pengguna sangat terbatas. • Belum ada kemampuan handover. • Efisiensi sangat kecil. • Keterbatasan kapasitas spektrum. • Kurang optimal. • Keterbatasan kemampuan kompresi dan coding data. • Tidak praktis. • Perangkat dan peralatan berat, sangat mahal untuk ukuran waktu itu. • Unsecure. • Phone number can be scanned and copied. • Voice conversation is not encryted. Dasar Telekomunikasi presentation - AMPS -

  5. AMPS GSM CDMA/IS-95 Akses jamak FDMA TDMA DS-CDMA Modulasi FM GMSK QPSK Bandwidth RF 30 kHz 200 kHz 1,25 MHz Kanal / carrier RF 1 8 20 – 30 Frekunsi Uplink 824 – 849 MHz 890 – 915 MHz 824 – 849 MHz Frekuensi Downlink 869 – 894 MHz 935 – 960 MHz 869 – 894 MHz Perbandingan Dasar Telekomunikasi presentation - AMPS -

  6. Kesimpulan • AMPS adalah teknologi selular generasi pertama yang mempunyai banyak keterbatasan. • Analog Voice Service, No Data Service. • Pioner of cellular telecommunication Dasar Telekomunikasi presentation - AMPS -

  7. SekianTerima Kasih Dasar Telekomunikasi presentation - AMPS -

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