Figure 2-13. Enhanced position location reporting system
(b) The principal components of EPLRS are the ground-relay Enhanced PLRS Terminal
(PT) and the Net Control Station (NCS). There are four NCS per three-brigade division: one per brigade
and one for the division rear. Each NCS controls between 150 and 250 PTs, which are user-owned and
operated. A complement of dedicated PTs serve the following functions: grid reference, dedicated relay,
and gateway. As grid reference and dedicated relays, these PTs are strategically positioned to improve
the overall network radio frequency (RF) link connectivity and ensure the accuracy of position reports.
As gateways, these PTs allow interface between units that are in different NCS communities. There is a
higher density of PT in the forward area of operations. The NCS has a series of computers, a 22-inch
circular monitor, and an AN/GRC-74 teletype for hard copy of user locations. The NCS is installed,
operated, and maintained by signal soldiers (MOS 31C) of the division signal battalion. The operator
manages the EPLRS network, maintaining the community connectivity, and monitors PT users in a
variety of ways. He can select the types of users; i.e., all manpack, surface vehicle, or aircraft, or a
combination of these.