The Antenna Connector provides a 50-ohm antenna port.

The Antenna Connector provides a 50-ohm antenna port.

• A. 75-ohm port
• B. 50-ohm antenna port
• C. 200-ohm port
• D. 600-ohm port

Answer: (B)

Impedance matching between the transmitter and the antenna is the key idea. An antenna port is specified to present a particular impedance to the radio so that maximum power is transferred and reflections are minimized. The Antenna Connector providing a 50-ohm port means it is designed to work with the standard 50-ohm RF system used by most equipment. This matching yields predictable performance and efficient radiation. Using a different impedance would create a mismatch: a 75-ohm port is not aligned with the common RF transmitter and coax, leading to reflections and reduced efficiency, while 200-ohm or 600-ohm ports are not typical for antenna interfaces and would also cause poor power transfer.

Impedance matching between the transmitter and the antenna is the key idea. An antenna port is specified to present a particular impedance to the radio so that maximum power is transferred and reflections are minimized. The Antenna Connector providing a 50-ohm port means it is designed to work with the standard 50-ohm RF system used by most equipment. This matching yields predictable performance and efficient radiation.

Using a different impedance would create a mismatch: a 75-ohm port is not aligned with the common RF transmitter and coax, leading to reflections and reduced efficiency, while 200-ohm or 600-ohm ports are not typical for antenna interfaces and would also cause poor power transfer.