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Marine Navigation Software Programs | CAPN Software, LLC

Designed for Professionals
by Professionals

Trusted... when confidence counts.

For over 20 years professional mariners have put their trust in the CAPN. The one and only marine navigation software – Why? CAPN listens and delivers what real working Captains want. No fancy fluff, just a real-life practical marine navigation tool for workboat, merchant and government professionals including the U.S. Navy and Coast Guard.

The popular choice for sail boaters & power boaters. The CAPN is used by the United States Power Squadron in their navigation courses.

The Capn V 8.3.20 | Full Version

Gain confidence of knowing you’re navigating with the latest data for your area!

Compatible with Windows Vista, XP, 7,  8, & 10
32 bit and 64 bit versions.

  • DVD’s of all U.S Charts
  • Supporting Documents
  • Updated NOAA Raster Charts (RNCs)
  • Updated NOAA Vector Charts (ENCs)
  • Updated Army Corps of Engineers Vector Charts (IENCs)


GPS Receiver

The BU-353-S4 is a USB GPS receiver that features a highly sensitive, low power consumption chipset in an ultra compact form factor compatible with Microsoft Windows 7, 8, 10, Vista & XP (32 & 64 bit).


  • SiRF Star IV High Performance GPS chipset.
  • Waterproof.
  • High sensitivity (Tracking Sensitivity: -159 dBm).
  • Extremely fast TTFF (Time To First Fix) at low signal level.
  • Support NMEA 0183 data protocol.
  • Built-in SuperCap to reserve system data for rapid satellite acquisition.
  • Built-in patch antenna.
  • Super-cohesive magnetic for mounting
  • USB interface connection port.
  • Waterproof and non-slip on the bottom.


  • GlobalSat USB GPS Receiver with 5 foot USB cable
  • Software driver
  • Suction cup mount

Power Source: USB cable provides all power for this GPS unit

iCAPN Apps

Latitude and Longitude conversion tool for Windows

Click here to download a free copy.

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