The UDA-49P is a Passive UHF directional antenna. Designed for wireless microphone systems (reception antenna) or for wireless in-ear monitoring systems, e.g. SIEM-111 from JTS (transmitting antenna) Improved reception. Range of 470-960 MHz. Rejects unwanted RF signals, minimises signal loss in multipath receptions and reduces interference susceptibility. BNC connection can be mounted onto any microphone stand with a thread of 9 mm (?") or 16 mm (?") 2 x UDA-49P required for true diversity reception.