coastwatch * Check from sectors for nearby ships
llookout * Check from units for other units, planes and/or sector types
lookout * Check from ships for other ships and/or sector types
lradar Use a radar unit's radar
radar * Perform radar scan from ship or sector
recon Use planes to take a look around
satellite Download data from a reconnaissance satellite
skywatch Check from sectors for nearby satellites
sonar * Use sonar to look for ships
spy * Snoop on adjacent enemy sectors

For info on a particular topic, type "info <topic>" where <topic> is one of the topics listed above. Topics marked by * are the most important and should be read by new players.