Mobile Crossing WayPoint Map Loader Návod k obsluze stáhnout pdf (Strana 78)

The Perform Calibration Now selection on the Set Conversion Method dialog is to be used when you have a file

with calibration waypoints and want to calibrate the conversion process or calculate ASFs.

Set ASFs: This button only shows if you are using a single set of ASFs per file (choice 3 in the Conversion Methods

selection). ASFs are Additional Secondary Factors that are used in conversions to compensate for the fact that land

features such as buildings, mountains, swamps, lakes, deserts, and such will distort the Loran signals as they travel to

you. This distortion can be as much as + 5 microseconds but is generally very stable. It can cause the Loran to Lat/Lon

conversions to be less accurate than they should be. Using ASFs will correct for the distortion and restore the accuracy.

You have two options for setting ASFs. Push the Set ASFs button and, if you know your ASFs, enter them in the

appropriate boxes, otherwise set them to the Defense Mapping Agency (DMA suggested values that show up in the

window. These can be changed later, as better data becomes available.

In this window you have the option of setting the current file's (assuming one is open) ASFs to the Default or DMA

values too.

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Mobile Crossing WayPoint Map Loader Návod k obsluze Strana 78