Emergency Telecommunicator Certification Practice Exam 2025 - Comprehensive Prep Tool

Frequency refers to the number of electromagnetic waves that pass a specific point in one second. It is a fundamental concept in telecommunications, particularly in the context of radio signals, where understanding how often the waves occur can influence communication systems. A higher frequency indicates that more waves are passing by in a given time period, which can affect the bandwidth and data transmission capabilities of a communication system.

The other options describe different aspects of waves or signals: the distance between waves relates to wavelength, the duration pertains to the time a signal is sent, and speed refers to how quickly the signals travel through a medium. However, these do not define frequency itself, which is solely concerned with the count of waves over a time frame. Thus, the choice reflecting frequency accurately captures its definition in the context of radio signals.