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AhaBulb: Stuff Everyone Should Know · ahabulb.com/ham-elliptical-polarization

Ionospheric signals are elliptically polarized. What does that mean for your antenna choice?

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  1. Both antennas must have the same polarization
  2. Vertical or horizontal antennas can both send and receive
  3. Digital modes become unusable

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References

  1. 2026-2030 Technician Class Question Pool, T3A09 ncvec.org/downloads/2026-2030%20Technician%20Pool%20and%20Syllabus%20Public%20Release%20Feb%2019%202026.pdf Checked 2026-10-09.

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