Upgrade Your Compu-Course 220 To Accept NMEA 0183
Upgrade your Compu-Course 220 software to
accept NMEA 0183, version 1.5, APA, APB, or XTE from a GPS receiver. Cost to upgrade is
$225.00 (plus shipping costs) and takes 2 - 3 days. Send the APU unit only and mark the outside of the
box "CC220 upgrade".