Click to expand Tap to zoom Brittain Industries B-7, Nav-2B, B2C. BSS System Installation Instructions by Brittain Industries Avionics Sale $20.00 | / SKU 17221:R Printed Manual - $20.00 Download - $20.00 Printed Manual Download Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Automatic Direction Finder