Applied Logic Engineering NavDive, User Manual

Page: 5 / 28

5
Description of the System
NavDive consists of two main components -- a surface deployed GPS receiver / transmitter that
receives a GPS fix and transmits it to the diver. The second component is a receiver / display
unit that is used by the diver to determine position and to determine a course to desired
destinations.
GPS Receiver
The topside unit consists of a self-contained, waterproof GPS receiver and data
transmitter. The GPS receiver obtains the lat/long postion information from satellites
overhead. This information is then converted to a usable format and sent on to the diver's
display/console every second.
This unit mounts to the diver's flag float. The base of the receiver is magnetic, so there are
many choices in terms of mounting. The receiver is also waterproof, but only on the surface.
DO NOT take the receiver below depths of about a foot – it is not designed to be waterproof at
depth.
Diver Console
The display/console unit is carried by the diver. It is a waterproof, self-contained unit that
receives the GPS information from the topside GPS receiver/transmitter. This unit contains an
integral LCD display and momentary contact switches that are operated by the diver. The