AN/WRN-6/7 Replacement

UrsaNav’s engineering team has developed a Position, Navigation, & Timing (PNT) Gateway to replace the obsolete AN/WRN-6 and AN/WRN-7 GPS receivers. The AN/WRN-6 Satellite Signals Navigation Set serves as the primary source for PNT information on more than 230 U.S. Navy, U.S. Coast Guard, and Military Sealift Command (MSC) platforms. The AN/WRN-7, an unclassified version of the AN/WRN-6, is the primary source for PNT information on approximately 250 foreign military ally ships. Both of these units supply data to the navigation or weapons system via the dual MIL-STD-1397 Naval Tactical Data System (NTDS) Type A or Type B interfaces, which are not available in any other military GPS receiver.

UN-100™

The UN-100™, also known as the “Ursa Navigator”, supplies an interface between a commercial or military GPS and the standard shipboard navigation equipment that uses the Naval Tactical Data System (NTDS) protocol. The UN-100™ was designed as a functional replacement for the obsolescent AN/WRN-7 GPS receiver. It can receive periodic fix data from up to two independent GPS receivers and provides the necessary lever-arm corrected fixes to downstream shipboard equipment. The UN-100™ can interface with current and future GPS receivers, eLoran receivers, and current and future navigation and weapon systems.

UN-105™

The UN-105™ is a tactical navigation gateway that interfaces a suite of navigation sensors with multiple tactical systems. As an expansion of the UN-100™, it offers the functional capabilities of the obsolescent AN/WRN-7 Satellite Signals Navigation Set plus additional interfaces that allow the distribution of navigation data over multiple independent Ethernet networks. The UN-105™ can be configured for internal or external commercial or Selective Availability Anti-Spoofing Module (SAASM) GPS receivers. Optional interfaces include ICD-GPS-153 GPS Standard Serial Interface Protocol (GSSIP), HAVEQUICK, and 1 PPS.

UN-110™

The UN-110™ was designed as a functional replacement for the obsolescent AN/WRN-6 Satellite Signals Navigation Set. It was developed from the UN-100™ baseline to include an internal Selective Availability Anti-Spoofing Module (SAASM) GPS receiver and an optional external SAASM or commercial marine GPS receiver. The UN-110™ features dual MIL-STD-1397 Naval Tactical Data System (NTDS) Type A or Type B interfaces. Optional interfaces include ICD-GPS-153 GPS Standard Serial Interface Protocol (GSSIP), HAVEQUICK, 1 PPS, and 10 PPS.