Amateur Extra › E9 Antennas and Transmission Lines › E9H03
E9H03
What is receiving directivity factor (RDF)?
Pick an answer to check it.
Answer: D. Peak antenna gain compared to average gain over the hemisphere around and above the antenna
RDF compares an antenna's peak gain to its average gain over the hemisphere around and above it. It measures how well the antenna favors signals over noise from all directions.
Tip: RDF = peak gain vs. average gain.