SI-TEX NMEA0183 GNSS SAT Compass w/49' Cable & Pole Mount Free shipping for all orders over $50.00. 30 days returns. Sign up for great deals with Fishbrain Pro. Share Loading Facebook Like button... SI-TEX NMEA0183 GNSS SAT Compass w/49' Cable & Pole Mount Free shipping for all orders over $50.00. 30 days returns. Sign up for great deals with Fishbrain Pro. Share Loading Facebook Like button...