Trimble ST30 Smart Target BLR Antenna Replace a lost or damaged target antenna to keep your ST30 equipped for Bluetooth Long-range Robotic communication. Designed for the ST30’s BLR radio system, this antenna replaces the component supplied with the basic hardware kit. Sold individually. Key Features Support target communication through Bluetooth Long-range Robotic (BLR) technology . Fit the dedicated antenna connection on the ST30 Smart Target . Compatible With Trimble ST30 Smart Target