Using the NavMonPc Program      (Updated 19 May 2012)           Back to Valhalla's Mooring Page          Back to NAVIGATION

This free program is an excellent addition to the suite of navigation programs you may want to run simultaneously.  In addition to it's display of AIS and  navigational instruments, it has the capability of splitting an incoming data signal into up to six data output signals (as of version 1.10 released 16 Sep 11).  These signals can range in speed from 4800 to 38400 bps .. GPS to AIS data speeds.

The program can be downloaded from the Four Fathom Marine Technology website.  Here's the NavMonPc basic screen.

I use this program in the following configuration:



GPS data at 4800 bps is sent via hard wire to the AIS receiver (NASA A.I.S Engine) and via serial-to-USB adapter to the GPS Utility program.  Having this program available directly to the GPS permits upload of new waypoints and routes while underway.  This is especially handy since the GPS is also integrated with the autopilot.  Changes to waypoints and routes created by either the MaxSea or OpenCPN programs can be made 'on the fly' without disturbing the navigation programs.


The NavMonPc program (using one of four possible inputs) splits the AIS data into the six outputs as shown. The other programs derive position information embedded within the AIS data stream. 


The MaxSea program requires separate inputs for position (Boat) and AIS data (Radar/AIS) on the Data Input/Output Settings.



The OpenCPN program displays AIS targets on the navigation charts which are in use.



The Yacht AIS-Pro program give the 'radar style' display of vessels and incorporates a variety of alarms.


The Bungee program) gives a Google Earth (GE) display with the vessels position and track.  Offline use is possible with GE caches that have previously been stored and loaded into the GE cache location for the area of interest.


The SeaClear II program displays AIS targets and the vessel's position on BSB charts and other .kap charts created from GE images.