So, what can we do to improve amateur networks?

As extreme as the problems are, I think there are some things amateurs can do to improve the capacity and speed of our information networks. These improvements come directly from Shannon's equation presented on a previous page.

• Increase Signal

  • Improve the paths
    

    • use OCARs

    • Break bad paths into multiple good paths. Examine and select terrain/sites carefully.

    • Minimize path lengths(pdf). Add nodes, increase user density.
      

  • Focus transmit power

    • use highly directional antennas(pdf)

    • use higher frequencies(pdf)

  • Use appropriate radio hardware

    • Minimize system noise temperature (low noise figure)

• Increase Bandwidth

  • Use appropriate modulation/coding
    

• Reduce Noise (and sensitivity to noise)

  • Use systems which can operate at low E_b/N₀ (low C/N)
  • Reduce system generated distortion
    • good strong signal performace
    • low enough group delay and amplitude ripple
  • use channel coding and FEC techniques

  • use spread spectrum to reduce multipath degradation

  • use power control to maximize sharing of the spectrum

• Cooperate!

  • form local alliances between amateur computer/networking and radio/hardware experts.
  • Work together locally, nationally and throughout the world