Radio Mobile - RF propagation simulation software
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dBd is decibel above the gain of a dipole antenna as a reference.

A dipole antenna is know to have a gain of 2.15 dBi. But as the isotrope antenna is a mathematical antenna technicians generally use the dipole antenna as a reference.
  • In the case of a yagi antenna with a gain of 14 dBd the yagi has 14 dB more gain as a dipole.

Antenna pattern of a dipole antenna

Calculate from and to other units ?
Use the 'On-line RF calculator'.

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