A device used to measure the strength and quality of television signals transmitted via coaxial cables. It typically displays signal parameters like signal level, signal-to-noise ratio, and bit error rate, aiding in the identification and diagnosis of signal-related issues. For example, a technician might use this equipment to determine if a weak signal is causing poor picture quality on a television screen.
This equipment is vital for ensuring optimal performance of cable television systems. It allows technicians to quickly locate and resolve issues such as signal degradation, interference, or faulty connections, leading to improved viewing experience and reduced service interruptions. Historically, simpler analog versions were utilized; however, modern iterations often feature digital displays and advanced diagnostic capabilities.