ADSL (Asymmetric Digital Subscriber Line)
Technology modem for the communications of high-speed multimedia data communications exploiting cable of twisted-pair cable phone which have been used. Its Transmission speeds earn reaches 6 Mbps.
HFC (Hyber Fiber Coax)
One of the network type which combine the cable coaxial with the cable fiber [in] using to deliver the data, draw and voice or service multimedia. This Network type [is] developed [by] after seeing fact that most network for the service of cable television that moment use the cable coaxial. Started expand it service multimedia in requiring network widely ribbon (bandwidth) larger ones in especial network to serve the consumer which also progressively increase. Because investment required replacing all network with the cable fiber very big, hence developing this technique on the chance of lessening the expense of investment.
NMT 450 (Nordic Mobile Telephone)
Laboring analogous communications cellular standard at frequency 450 MHZ. This Standard developed and used by nations of Nordic year 1981.
AMPS (Advanced Mobile Phone System)
Laboring analogous communications cellular standard at this 800 MHZ. Standard frequency developed and used from year 1983.
TACS (Total Access Communication System)
Analogous communications cellular standard; similar to AMPS; only employing at frequency 900 MHZ. This Standard is developed and used by 1985.
NMT 900 (Nordic Mobile Telephony)
Laboring analogous communications cellular standard [at] this 900 MHZ.STANDAR frequency is developed and used by nations of Nordic year 1986.
GSM (Global System for Mobile Communication)
Laboring digital communications cellular standard at frequency 900 MHZ. This Standard is developed by alliance of European countries and using commercially in the year 1991. Modulation used by GMSK ( 0.3 Gaussian Filter), channel spacing 200kHz,channel beet rate 270.833 kb / s, number of channel 124 ( 8 users / channel), method duplex used by FDD, MULTIPLE access the method TDMA/ FDM.
DCS 1800 (Digital Cellular System)
Laboring digital communications cellular standard at frequency 1800 MHZ. This Standard developed and used in the year 1992 and represent the development from GSM 900. Modulation used by GMSK ( 0.3 Gaussian Filter), channel spacing 200kHz,channel beet rate 270.833 kb / s, number of channel 374 ( 8 users / channel), method duplex used [by] FDD, multiple access the method TDMA/ FDM.
Technology modem for the communications of high-speed multimedia data communications exploiting cable of twisted-pair cable phone which have been used. Its Transmission speeds earn reaches 6 Mbps.
HFC (Hyber Fiber Coax)
One of the network type which combine the cable coaxial with the cable fiber [in] using to deliver the data, draw and voice or service multimedia. This Network type [is] developed [by] after seeing fact that most network for the service of cable television that moment use the cable coaxial. Started expand it service multimedia in requiring network widely ribbon (bandwidth) larger ones in especial network to serve the consumer which also progressively increase. Because investment required replacing all network with the cable fiber very big, hence developing this technique on the chance of lessening the expense of investment.
NMT 450 (Nordic Mobile Telephone)
Laboring analogous communications cellular standard at frequency 450 MHZ. This Standard developed and used by nations of Nordic year 1981.
AMPS (Advanced Mobile Phone System)
Laboring analogous communications cellular standard at this 800 MHZ. Standard frequency developed and used from year 1983.
TACS (Total Access Communication System)
Analogous communications cellular standard; similar to AMPS; only employing at frequency 900 MHZ. This Standard is developed and used by 1985.
NMT 900 (Nordic Mobile Telephony)
Laboring analogous communications cellular standard [at] this 900 MHZ.STANDAR frequency is developed and used by nations of Nordic year 1986.
GSM (Global System for Mobile Communication)
Laboring digital communications cellular standard at frequency 900 MHZ. This Standard is developed by alliance of European countries and using commercially in the year 1991. Modulation used by GMSK ( 0.3 Gaussian Filter), channel spacing 200kHz,channel beet rate 270.833 kb / s, number of channel 124 ( 8 users / channel), method duplex used by FDD, MULTIPLE access the method TDMA/ FDM.
DCS 1800 (Digital Cellular System)
Laboring digital communications cellular standard at frequency 1800 MHZ. This Standard developed and used in the year 1992 and represent the development from GSM 900. Modulation used by GMSK ( 0.3 Gaussian Filter), channel spacing 200kHz,channel beet rate 270.833 kb / s, number of channel 374 ( 8 users / channel), method duplex used [by] FDD, multiple access the method TDMA/ FDM.
