What can help reduce overload of a VHF transceiver by a nearby commercial FM station?

What can help reduce overload of a VHF transceiver by a nearby commercial FM station?

• A. Change the antenna position
• B. Using a band-reject filter
• C. Increasing the power output
• D. Switching antennas

Answer: (B)

Using a band-reject filter is an effective way to mitigate the overload of a VHF transceiver caused by a nearby commercial FM station. Band-reject filters, also known as notch filters, are designed to block or attenuate signals within a specific frequency range while allowing signals outside of that range to pass through. In this case, if the commercial FM station is transmitting on a frequency that overlaps or is close to the frequency of the transceiver, applying a band-reject filter can significantly reduce interference from that station, helping to maintain clear communication on the desired channels. The other options, while they may seem relevant, do not directly address the specific issue of overload caused by a nearby station. Changing the antenna position might help in some situations, but it is not guaranteed to resolve the interference issue with specific frequencies. Increasing power output could actually worsen the problem by further increasing the overload, creating a feedback loop of interference. Switching antennas may be beneficial, but it does not necessarily ensure that the source of interference is effectively managed. Therefore, using a band-reject filter is the most targeted and effective solution for reducing overload in this scenario.

Using a band-reject filter is an effective way to mitigate the overload of a VHF transceiver caused by a nearby commercial FM station. Band-reject filters, also known as notch filters, are designed to block or attenuate signals within a specific frequency range while allowing signals outside of that range to pass through. In this case, if the commercial FM station is transmitting on a frequency that overlaps or is close to the frequency of the transceiver, applying a band-reject filter can significantly reduce interference from that station, helping to maintain clear communication on the desired channels.

The other options, while they may seem relevant, do not directly address the specific issue of overload caused by a nearby station. Changing the antenna position might help in some situations, but it is not guaranteed to resolve the interference issue with specific frequencies. Increasing power output could actually worsen the problem by further increasing the overload, creating a feedback loop of interference. Switching antennas may be beneficial, but it does not necessarily ensure that the source of interference is effectively managed. Therefore, using a band-reject filter is the most targeted and effective solution for reducing overload in this scenario.