Amateur Extra › E9 Antennas and Transmission Lines › E9C11
E9C11
How is the far-field elevation pattern of a vertically polarized antenna affected by being mounted over seawater versus soil?
Pick an answer to check it.
Answer: D. Radiation at low angles increases
Seawater is an excellent conductor, so it reflects much better than soil. A vertical antenna over seawater radiates more strongly at low angles.
Tip: Over saltwater, low angles get stronger.