Mobile Crossing WayPoint Map Loader Betreibershandbuch PDF herunterladen (Seite 28)

A calibration report is generated when you perform a calibration to show you what accuracy the process might achieve.

It does this by taking all the calibration waypoints in the file and calculating the Lat/Lon from the Loran as if the Lat/Lon

was not known. Then the distance from the calculated to the real position is figured for each one. The distances for all

the calibration waypoints are averaged and both the average and worst distance is reported. By doing the calibration

with each of the calibration methods above and examining the calibration report, you can find the most accurate method

for you. For mathematical stability, not all of the perceived calibration is applied during the process. Therefore, you

may see some minor improvement by performing the calibration more than once.

3. How to Scale and Manage Maps

Maps are sized to fill the paper to your margin settings. The scale of the map can be set to cover the area you want to

show but remember the screen and paper are different shapes. The simple maps created by the program are Mid Latitude

projections so one degree of longitude is smaller than one degree of Latitude. NOAA maps use Mercator projections that

make the spacing between the Latitude lines vary slightly between the top and bottom of the map. The difference

between these two types of projections is minor over the typical area covered by a fisherman.

The mapping routine in Maps>Create Map uses your default center Latitude to figure the map width rather than using

the actual middle of the map. Therefore, all the maps you make will have the same width to height ratio allowing you to

easily paste them together.

If you have trouble figuring out what Lat/Lon to use to make a map, use the Display>Display On Chart feature to see

where your waypoints are. Pan and zoom around the chart until you are satisfied with the area displayed. Then select

Chart Operations>Make This Chart into A Map to make a map of that area. Keep in mind that the map that will

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Mobile Crossing WayPoint Map Loader Betreibershandbuch Seite 28