The RE3-ACC-PLPA Passive Log Periodic Antenna from Electro-Voice is a passive directional antenna with 10 dB of passive gain. It can be used to increase desired RF signals while rejecting unwanted RF signals when paired with an Electro-Voice wireless receivers and low-loss coax cables (sold separately). The RE3-ACC-PLPA passive antenna mounts on a standard threaded microphone stand for easy placement.