A system for monitoring passive components of a passive distributed antenna system is disclosed. The system includes a bi-directional amplifier, a public safety monitor coupled to and in communication with the bi-directional amplifier, and at least one smart node coupled to and in communication with the public safety monitor. The at least one smart node is positioned within the passive distributed antenna system and includes a processor, connected to or coupled to a spectrum analysis module configured to monitor signal characteristic information of at least one radio frequency signal passing through the passive distributed antenna system. The processor is configured to transmit the signal characteristic information to the public safety monitor and the public safety monitor generates system performance information based on a signal at the bi-directional amplifier and the transmitted signal characteristic information.