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.