Engineering:Relative directivity factor

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Short description: Formula for calculating signal to noise ratio

Relative directivity factor (RDF) is a figure of merit for radio receiving antennas.[1] It is the antenna gain in the forward direction divided by the gain in all other directions. It is also called the signal to noise improvement factor (SNIF).[2]

References

  1. ↑ Lee Strahan. "Low Band Receiving Antenna Comparisons". http://www.k7tjr.com/rx1comparison.htm. 
    - Rudy Severns (2016-12-20). "Comments on the WD8DSB Terminated Bow-Tie RX Antenna". http://www.antennasbyn6lf.com/2016/12/comments-on-the-wd8dsb-bow-tie-rx-.html. 
  2. ↑ Lee Strahan. "Receiving Antenna Comparison Chart". Culver, OR: Hi-Z Antennas. http://www.hizantennas.com/receiving_antennacomparison_char.htm. 




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