Channel Master distribution amplifiers will boost your digital TV and HDTV signals, increasing overall signal strength. They have a miniature design that will give you more space to relieve congested installs when space is at a premium. Channel Master distribution amplifiers are professional-grade and meet stringent U.S. and international standards, including those developed by the Society of Cable Telecommunications Engineers (SCTE). Channel Master distribution amplifiers can be used in HDTV, CATV, off-air, analog and digital RF distribution applications where high performance and reliability are required. The CM 3410 is a high-quality ultra-mini single-output digital TV amplifier with passive return, which means the distribution amplifier does not have any amplification for signals in the return path frequency range (5-42MHz). This frequency range is used in cable telecommunications networks to allow cable modems and set top boxes to communicate back through the cable network.