Gmdss_e3 : Element 3 - 547/605
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| What is the purpose or function of the RADAR duplexer/circulator? It is a/an: |
| A) Coupling device that is used in the transition from a rectangular waveguide to a circular waveguide. |
| B) Electronic switch that allows the use of one antenna for both transmission and reception. |
| C) Modified length of waveguide that is used to sample a portion of the transmitted energy for testing purposes. |
| D) Dual section coupling device that allows the use of a magnetron as a transmitter. |
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