
To do custom chain selection, you need to know something about Loran. The Loran C system designates master/slave
station sets by the names: Whiskey, X-ray, Yankee, and Zulu (and occasionally Victor). These are abbreviated to just
the first letter. Each master/slave set gives you one Loran number and you need a pair of Loran numbers to navigate by.
We will call such a pair of numbers a chain. For custom Loran C chain selection click on the check boxes of a pair (2) of
master/slave sets (V, W, X, Y, or Z) and then push OK, Next Pair. You can select up to 8 chains that will be numbered
from 1 to 8. On the graphic above, the yellow boxes are the available slaves. Blue means not available. Chains #0 and
#9 are pre-assigned to represent Lat/Lon.
Loran A coverage
If you have very old lists of waypoints that use the Loran A chains, you need to pick the appropriate A station pairs from
the next screen that is shown by pushing the 'Show Loran A Chains' button in the figure above.
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