The LA-82 is a passive device (no power supply needed) that takes six (6) incoming RF signals and combines them into one (1) outgoing antenna source. The combiner is used in applications where up to six (6) different antenna sources are required and only one (1) antenna output is available or desired. Combines six incoming RF signals and combines them into one outgoing antenna source. Passive (no power supply needed). Works with 72 or 216 MHz products only. Labeled for ease of use.