The Shure PA805DB-RSMA Dual Band Passive Directional Antenna improves in up to 8dB the reception of half-rack GLXD4R+ receivers and of the GLXD+FMDB Dual Band Frequency Manager. Improved filtering of interference from 2.4 and 5.8GHz sources deliver 24dB front-to-back rejection ratio of off-axis signals.