Antennas

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Antennas are the single most important part of any FPV setup. Seriously.

Antennas are split into two categories, linear and circular polarization. Linear polarization antennas can in theory achieve greater range than their circular polarized counterparts but that advantage can be nullified by multipath interference and loss of signal when rolling/banking heavily. Multipath interference occurs when the transmitted signal gets reflected off surfaces causing the receiver to see multiple signals simultaneously; the original good signal and a bad reflected signal.

Linear Polarization[edit | edit source]

  • Monopole
  • Dipole and V-Dipole
  • Patch
  • Moxon
  • Yagi
  • Biquad and Bicircle
  • HT Whips

Circular Polarization[edit | edit source]

  • Cloverleaf / Skew Planar
  • Windmill / Virevent / Fan / Turbine

http://www.truerc.net/images/tutorials/Fan%20tutorial.pdf

Frequencies[edit | edit source]

440[edit | edit source]

910 / 1.2 / 1.3[edit | edit source]

2.4[edit | edit source]

One of the free ISM fequencies.

Legal for FPV use in Europe (atleast most countries), though without a license power is limited to 10mW.

5.8[edit | edit source]

One of the free ISM fequencies.

Legal for FPV use in Europe (atleast most countries), though without a license power is limited to 25mW.