_________________________________________________________________ How about this for a easy method of Grid Square Calculator? _________________________________________________________________ With all this talk about grids - and getting computers to figure them etc. Here is an easy way - and you don't need no computers or anything - well maybe a piece of paper. Here's the deal: How to determine your grid square without a map. You will need your longitude and latitude to the nearest degree:

- BUCKMASTER Callsign server - US, Foreign w/ grids, lat/long.
- Geographic Name Server: Lat/Long lookup - US Census Bureau
- Software: BD Lat/Long-Gridsquare Calculator (26k)

First your longitude: 1. Convert the minutes portion of the longitude from minutes to decimal by dividing by 60. 2. For North America and locations of West longitude, subtract your longitude from 180 degrees. For location of East longitude, add 180 degrees. 3. Next divide this value by 20. The whole number result will be used to determine the first character fo your grid, as follows: 0=A, 1=B, 2=C, 3=D, 4=E, 5=F, 6=G, 7=H, 8=I, 9=J, 10=K, 11=L, 12=M, 13=N, 14=O, 15=P, 16=Q, 17=R, 18=S. 4. For the third digit, multiply this last number by 10. The digit immediately before the decimal point is the third digit of your grid. Now use your latitude. 1. If your latitude is north, add 90. If your latitude is South, subtract your latitude from 90. 2. Divide this number by 10. The whole number result will be used to determine the second character of your grid as follows: 0=A, 1=B, 2=C, 3=D, 4=E, 5=F, 6=G, 7=H, 8=I, 9=J, 10=K, 11=L, 12=M, 13=N, 14=0, 15=P, 16=Q, 17=R, 18=S. 3. Now, multiply this number by 10. The digit immediately before before the decimal point is the fourth digit of your grid. -- original posting from: George Fremin III Austin, Texas C.K.U. WB5VZL 512/416-0140 geoiii@bga.com

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