In a direction-finding setup using multiple antennas, what do LOBs provide?

In a direction-finding setup using multiple antennas, what do LOBs provide?

• A. Distances
• B. Times of arrival
• C. Bearings
• D. Ranges

Answer: (C)

Line of bearing measurements give you the directional lines from each observation point toward the transmitter. In a multi-antenna direction-finding setup, each measurement defines a line along which the source lies; where these lines intersect indicates the transmitter’s position. This is why bearings are what LOBs provide—they establish direction, not distance. Distances or ranges require additional techniques like timing or signal strength analyses, which are not given by the bearing lines alone.

Line of bearing measurements give you the directional lines from each observation point toward the transmitter. In a multi-antenna direction-finding setup, each measurement defines a line along which the source lies; where these lines intersect indicates the transmitter’s position. This is why bearings are what LOBs provide—they establish direction, not distance. Distances or ranges require additional techniques like timing or signal strength analyses, which are not given by the bearing lines alone.