Ham Radio Extra Class Practice Test 2025 - Free Extra Class License Exam Questions and Study Guide

Question: 1 / 400

Which frequency band requires all operators to perform proper interference protection for local news stations on FM?

HF Band

VHF Band

The VHF band is the correct choice because it is primarily where many FM radio stations operate, including local news stations. In the VHF frequency range, particularly between 30 MHz and 300 MHz, there is significant overlap with the broadcasting frequencies used for FM radio. Operators using frequencies within this band must ensure that their transmissions do not cause interference to these local services, which may include news stations that rely on FM broadcasts to reach their audience.

The expectation for operators in this band is to take measures to minimize the potential for interference, such as adhering to proper power levels, using appropriate modulation techniques, and ensuring good operational practices. This requirement helps maintain a harmonious coexistence between amateur radio services and commercial broadcasting, ultimately protecting vital local news services that serve the community.

In contrast, other bands like HF, UHF, and SHF are used for different types of communications and typically do not overlap with the FM broadcasting spectrum, thus not subjecting operators to the same specific interference protection obligations related to local news stations.

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UHF Band

SHF Band

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