Capt. Jack Sparrow
Member
We've got a TZT14 (dual displays) getting GPS from a GP-330B. The vessel also has a FI-70 display. When re-setting both the TZT14 and the FI-70 trips to zero, we find that the TZT14 distance is double that of the trip reading on the FI-70. All sets are set to NM ad using same GP-330B for GPS/trip info. We did a short trip and FI-70 reads 7nm and TZT14 reads 13.29nm. The trip was about 7nm so we're assuming that the FI-70 is showing correct reading?