Lynx 14.00553.19.00LM is a Channel 59 communal filter. Designed with cavity tuning technology for indoor or outdoor installation. Although intended for connection directly to the aerial, they may be used in any other suitable locations such as head-ends, launch amplifiers and trunk cables. All communal filters are supplied with F type female connectors and we recommend they are installed in a sheltered location, away from direct rainfall, chimneys or heating exhausts.