39. A mismatched antenna system can degrade marine VHF radio performance. Antenna system matching can be analyzed by determining the Standing Wave Ratio (SWR). Which of the following is the best test procedure to determine the VHF antenna system SWR?

Question

39. A mismatched antenna system can degrade marine VHF ­radio performance. Antenna system matching can be analyzed by determining the Standing Wave Ratio (SWR). Which of the following is the best test procedure to determine the VHF antenna system SWR?

Accepted Answer

insert a directional wattmeter between the vhf transmitter and the coaxial transmission line connected to the antenna, activate the push-to-talk (ptt) circuit, observe the measured values of forward and reflected power.

39. A mismatched antenna system can degrade marine VHF ­radio performance. Antenna system matching can be analyzed by determining the Standing Wave Ratio (SWR). Which of the following is the best test procedure to determine the VHF antenna system SWR?

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39. A mismatched antenna system can degrade marine VHF radio performance. Antenna system matching can be analyzed by determining the Standing Wave Ratio (SWR). Which of the following is the best test procedure to determine the VHF antenna system SWR?