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Comunicacin y Radios Digitales

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SSTV-HF, Digital Slow Scan TV FSK. IRLP- VHF Internet Radio Linking Protocol, ... Direct TV, KU Band Digital Television. Echostar TV, KU Band Digital Television ... – PowerPoint PPT presentation

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Title: Comunicacin y Radios Digitales


1
Comunicación y Radios Digitales
  • HR1RCT
  • Juan Carlos Mercado Presidente
  • 26 de Mayo de 2004
  • Carlos Mauricio Alvarado
  • Carlosalvarado_at_quick-photo.com
  • Richard Pache HR1/K2LCT
  • K2lct_at_aol.com

2
Modos de Radio HAMS
  • CW-HF and VHF, 5 - 50 WPM
  • PSK31- HF, variable length code
  • RTTY- HF, Badout code
  • PACTOR-HF, Error correction Digital Data
  • PACKET-HF and VHF, FSK AX.25
  • SSTV-HF, Digital Slow Scan TV FSK
  • IRLP- VHF Internet Radio Linking Protocol, radio
    to radio
  • ECHO LINK- Internet, radio to radio/internet to
    radio

3
Bases
  • Pulse Shaping
  • Multipath Reduction
  • Error sensing
  • Error correction
  • Bandwidth reduction
  • Common Signals
  • Band sharing

4
Modos de Teléfono
  • PCM-64 kbs X24T1,1.54 X32E12.048
  • ADPCM-32kbs CCITT G.721
  • X.25 Packet used in PABX and LANs
  • WLL-Wireless Local Loop, 3.5Ghz,CDMA
  • ATM with Fiber Optics FDDI
  • Fiber Optics -SONNET, WDM

5
Rates
  • Americas
  • X1 PCM 64KBS
  • X24 T1 1.544Mbs
  • X672 T3 44.736Mbs
  • X4032 T4 274.176Mbs
  • SONET 155/622Mbs
  • Europe
  • X1 PCM 64Kbs
  • X32 E1 2.048 Mbs
  • X480 E3 34.368Mbs
  • X1920 139.264Mbs
  • SONET 155/622Mbs

6
Modos de Teléfonos
  • TDMA Early ATT Cellular system
  • GSM European, Global System Mobil
  • CDMA US, Code Division Multiple Acess
  • DECT Digital European Cordless Telacom
  • NEXTEL US,TDMA by Motorola
  • 3G Future systems with higher data rates
  • 4G Future systems with higher data rates

7
Telefonia Para Todos
  • Hondutel and CONATEL WLL Wireless Local Loop at
    2.4 to 3.5 Ghz CDMA Code Division Multiple Acess.
  • MultiFon and AirWay others
  • Short Range Microwave from nearby omnidirectional
    antenna.
  • May provide DSL like service,Voice and data on
    the same line, 1.5Mbs.

8
Modos de T.V. y Satelite
  • Direct TV, KU Band Digital Television
  • Echostar TV, KU Band Digital Television
  • 8VSB TV, US Land Baised Digital TV Zenith
  • DBS TV, Europe land baised Digital TV OFDM
  • GPS Worldwide location and time service
  • Consumer and Military, CDMA SS

9
Wireless Data
  • 802.11- Wi-Fi 2.4Ghz 1-2Mbs
  • 802.11b- 5.6Ghz 5-10Mbs
  • CDPD- Cellular 800Mhz 19.3Kbs
  • Bluetooth- 2.4 Ghz, short range 1Mbs
  • 802.16- 5.6Ghz, High Security 100Kbs
  • Mobiltex-US 900Mhz, EU 400Mhz 8Kbs

10
Modos de bandas AM, FM y SW
  • XM- Satellite, 100 Ch Digital radio for Autos
  • SIRIS- Satellite, 100 Ch Digital radio for Autos
  • DRM -Digital Radio Mondel for ShortWave
  • IBOC- US,Digital Radio in AM Radio Band
  • DAB- Europe, Digital Radio, FM type

11
Modos para Radios de Banda Corta and Bippers
  • POCSAG - Paging 150-900 Mhz, 1200 Bps
  • FLEX- Paging, Motorola 2400-5600 Bps
  • ERMES- Paging European 5600Bps
  • Project-25- Digital Trunking Radio 9.6Kbs
  • TETRA- Digital Trunking Radio 36Kbs

12
Paginas en Internet
  • www//Tapr.org
  • www//arrl.net

13
Biblografia
  • RF Datamate WWW.ifrsys.com
  • Communicaciones De VozYDatos J.M. Huidobro EP
    editorial Paranifo ISBN 84-283-2165-5
  • Teleiformitica Aplicada Lechtaler, Fusario,
    McGraw Hill, ISBN 84-481-1917-7
  • Redes De Computadoras Tergera Edicion, Tanenbaum,
    PPH Prentice Hall ISBN 968-880-958-6
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