Offshore communication
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Getting the most out of HF and mobile broadband services

Getting the most out of HF and mobile broadband services

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Offshore communication Presentation Transcript

  • 1. Offshore Communications: Radio & Internet
    Marty Andersen
    Andersen Marine
    Marius Coomans
    Skipr.net
  • 2. Radio Communications
    • Radio Propagation
    • 3. Selecting and Installing Antennas
    • 4. VHF & HF radio – do we need both?
    • 5. Mobile Phones – just another radio!
  • Online Communications
    • Internet Access Alternatives
    • 6. Managing Telstra
    • 7. Satellite Communications
  • Propagation
  • 8. Wavelength v Frequency
  • 9. Propagation - Daytime
  • 10. Propagation - Day v Night
  • 11. Antennas
    • Antennas are matched to a Frequency (band)
    • 12. What matters is Power Delivered rather than transmitter power
    • 13. VHF and higher bands operate on the basis of "line of sight"
    • 14. The gain and radiation pattern of an antenna are critical.
  • 15.
  • 16. Typical whip antenna radiation pattern
    The higher the gain, the narrower the beam
  • 17. The effect of heel on transmission
  • 18. Distance to Horizon
    Yacht A (10 m)   - 11.3km (6 NM) 
    Yacht B (20m)    -  16 km (8.6 NM)
    Tower (100m)    -  35.7 km (19.3 NM)
  • 19. VHF  v  HF
  • 20.
  • 21.
  • 22.
  • 23.
  • 24. 850 MHz v 2100 MHz
    Number of Phone Towers
  • 25.
  • 26.
  • 27.
  • 28.
  • 29. Internet Access
    • the Easy option
    • 30. the Efficient option
    • 31. the Luxury option
    • 32. the Other option
  • Internet Access
    • the Easy option
    • 33. the Efficient option
    • 34. the Luxury option
    • 35. the Other options
  • How?...
    • the Easy option
    • 36. the Efficient option
    • 37. the Luxury option
    • 38. the Other options
  • How?...
    • the Easy option
    • 39. the Efficient option
    • 40. the Luxury option
    • 41. the Other options
  • Internet Access
    • the Easy option
    • 42. the Efficient option
    • 43. the Luxury option
    • 44. the Other options
  • How?...
    • the Easy option
    • 45. the Efficient option
    • 46. the Luxury option
    • 47. the Other options
  • How?...
    • the Easy option
    • 48. the Efficient option
    • 49. the Luxury option
    • 50. the Other options
  • Try it
    Skipr
    joyandmarius
  • 51. Internet Access
    • the Easy option
    • 52. the Efficient option
    • 53. the Luxury option
    • 54. the Other options
  • How?...
    • the Easy option
    • 55. the Efficient option
    • 56. the Luxury option
    • 57. the Other options
  • Use the phone
  • 58. $100
  • 59.
  • 60. Telstra "Browsing Packs"
  • 61. Mobile Broadband Plans
  • 62. Prepaid Mobile Broadband
  • 63. Plan considerations
    • Does your phone plan allow tethering?
    • 64. How consistent is your broadband usage?
    • 65. Are you prepared to switch to Telstra?
  • Internet Access
    • the Easy option
    • 66. the Efficient option
    • 67. the Luxury option
    • 68. the Other options
  • Satellite Internet
    Marina WiFi
    Sat Phone
    Sailmail
  • 69. Satellite Communicators
    ‘SENDs’
  • 70. Questions?