Mobile Crossing WayPoint Map Loader Návod k obsluze stáhnout pdf (Strana 72)

One of the main settings in User Preferences is the center Lat/Lon and Loran chains. Even if you do not expect to use

Loran, it is better to set it up in case you get a list of data from someone that is in Loran. However, you can set Hide all

Loran features and not be bothered with them. The setting of a center Lat/Lon gives the program a general idea as to

where your fishing area is. From that, it can make up representative Loran waypoints to check your data entries against

and to help find the appropriate Loran chains to use. Why you ask? Well, in general, there are two or more valid

solutions to the equations for a given set of Loran numbers. That is, the same Loran numbers can exist in two widely

separated locations. To compute the right solution you need to give it an initial guess.

You can enter Lat/Lon numbers in any one of four distinct forms. Use positive numbers for N and W and negative for S

and E. For example, the following are all equivalent and valid:

28.9873 degrees

2859.238 or: 28 59.238 degrees, minutes

28 59 14.28 degrees, minutes, seconds

If it bothers you that there are many ways to express Latitude and Longitude, think of the many ways we express time.

Half past ten, ten thirty, 30 minutes ‘til eleven, 30 minutes and 0 seconds after 10 PM, and so on. With the exception of

the 12/24 hours versus 90/180 degrees, converting the numbers between versions is the same.

You can use dashes in place of the spaces if you wish. If the program sees a number with two spaces or dashes it will

assume that it is the last type. A number with one space or a number that exceeds 60 will be interpreted to be the second

row form. A common mistake is to leave out the periods, which are not prominent on the GPS's display. Unfortunately,

you cannot do that here. So, if you put in a number like: 28 59 238, the program will think it is degrees, minutes,

seconds and will complain that there are more than 60 seconds in the number. Did you mean 59.238 minutes or did you

mean 59 minutes and 23.8 seconds? It might, however, accept 28 59 001 as valid when it is not, so use the accepted

forms. Another issue comes up if you live in Great Britain. There, you could have a longitude of 0001.456 (1.456

minutes W) since you are near the Prime Meridian. This might be confused with 01.456 (1.456 degrees W) since the

leading zeros on a number are often ignored. In this case, I would suggest setting the program for Degrees and fractional

Degrees (DD.DDDD).

The most common form of GPS display is the second one on the second row (28 59.238) and this one has a period. I

like the first one on the second row since it is more compact. Keep in mind that the international standard is that E

longitudes are positive and W are negative, the reverse of what this program uses. The reason is that the vast majority of

our customers are in W longitudes.

Previously, in chapter III, you should have set the Printout HEADER, Center Lat/Lon and Inlet Name and Lat/Lon.

Some of the options not covered there are

Set Number Formats

See Display>Number Formats

Set Duplicates

The duplicates searching routines can be programmed here. Duplicate searching is done on a sorted file since, for speed,

the routine only checks the next 10 waypoints in the list for duplicates. You can also set what is considered an exact

duplicate for automatic deletion.

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 129 130

Žádné komentáře

Mobile Crossing WayPoint Map Loader Návod k obsluze Strana 72