GMDSS: Element 3

1. A Knowing the radiation resistance makes it possible to match impedances for maximum power transfer.
2. B Knowing the radiation resistance makes it possible to measure the near-field radiation density from transmitting antenna.
3. C The value of the radiation resistance represents the front-to-side ratio of the antenna.
4. D The value of the radiation resistance represents the front-to-back ratio of the antenna.

Tip: press A-D to answer