What is the range of downstream frequencies typically used?

The correct range of downstream frequencies used is typically from 50 to 865 MHz. This range is significant because it encompasses the frequencies utilized for transmitting cable television signals, internet data, and other broadband services to the end-users. In cable systems, frequencies lower than 50 MHz are generally reserved for other services, while those above 865 MHz are often not employed for downstream transmissions.

The frequency range from 50 MHz to 865 MHz is essential for ensuring adequate bandwidth for streaming services, interactive applications, and high-definition content. This bandwidth allows for multiple channels to be transmitted simultaneously, supporting the growing demand for data-intensive services.

In the context of cable systems, understanding the downstream frequency range is crucial for field technicians as they work on installing, maintaining, and troubleshooting cable and internet services. Familiarity with this frequency range helps technicians ensure that signal levels are adequate and that there is minimal interference or signal degradation.