A location determination device (104) is worn on a user's head to
facilitate searching and tracking for another individual carrying a
portable radio (102) as well as locating exit routes. At least two
antennas (108), a monopulse receiver (110) and a display are integrated
into the location determination device (104). Location determination
device (104) scans for an incoming signal (106) from the portable device
(102) and coverts the signal into angular location data. The location
data and egress information are displayed to the peripheral vision of the
user of the location determination device (104).