Sennheiser A 1031-U - - Passive omni-directional antenna
SENNHEISER A1031-U / A1031U (NEW IN OPEN BOX) | eBay
West Auctions - Auction: Surplus Auction of Vehicles, Sound, Lighting and Production Equipment ITEM: (2) Sennheiser A 1031-U Passive Omni-Directional Antenna