The only impacted aircraft are those with active (interrogating) TCAS systems.  These systems provide aural resolution advisories, and will generally be marked as TSO-C119.  TCAS systems are required for Part 135 operations on large turbine powered aircraft.
Aircraft equipped with TIS or ADS-B In systems for traffic awareness are NOT impacted. Also not impacted are TCAS-like systems such as the Skywatch 497.  ADS-B receivers providing data to a G1000, ForeFlight or other moving maps provide an additional level of situational awareness but they are NOT TCAS systems.  There is no limitation on installing skyBeacon alongside these systems.