Rob,
By far the easiest way to set up your unit is to jump on a boat that has loran and jest enter the numbers that unit is displaying with no ofset. Then if your unit doesn't display the same numbers use the offset to adjust your unit.
By far the easiest way to set up your unit is to jump on a boat that has loran and jest enter the numbers that unit is displaying with no ofset. Then if your unit doesn't display the same numbers use the offset to adjust your unit.