Radio receivers; computer hardware and software for providing maps associated with buried or hidden objects; computer hardware and software for providing displays of information associated with buried or hidden objects; computer hardware and software for use in locating buried objects; computer hardware and software for processing and decoding radio signals; computer hardware and software for processing and decoding radio signals that include integrated data; buried utility magnetic locators for receiving and decoding radio signals; buried utility magnetic locators for receiving and decoding radio signals with integrated data; buried utility magnetic locators for receiving and decoding radio beacon signals including audio or video signals or data; computer software for receiving radio beacons with integrated data and generating location or mapping information; computer hardware and software for receiving radio beacons with integrated audio or video signals and extracting and storing or outputting the audio or video signals; emergency position-indicating radio beacons; radio transmitters; computer hardware and software for integrating data with radio signals; computer hardware and software for controlling radio beacon signaling; computer hardware and software for integrating audio or video signals with radio signals; electronic devices for integrating audio or video signals with radio signals; electronic devices for generating audio or video signals from within pipes or conduits; electronic devices for sending electromagnetic signals from within hidden or buried pipes or conduits; electronic devices for integrating position or location information with radio signals; transmitters for sending radio signals with integrated data or information