What does grid square mean?
Grid squares are a shorthand means of describing your general location anywhere on the Earth in a manner that is easy to communicate over the air. … A grid square is indicated by two letters (the field) and two numbers (the square), as in FN31, the grid square within which W1AW, ARRL’s Maxim Memorial Station, resides.
How many Maidenhead grid squares are there?
488 grid squares
What size is a grid square?
When the term ‘grid square’ is used, it can refer to a square with a side length of 10 km (6 mi), 1 km, 100 m (328 ft), 10 m or 1 m, depending on the precision of the coordinates provided.
How many miles is a square grid?
An instrument of the Maidenhead Locator System (named after the town outside London where it was first conceived by a meeting of European VHF managers in 1980), a grid square measures 1° latitude by 2° longitude and measures approximately 70 × 100 miles in the continental US.
How do you read a square grid map?
The number of the vertical grid line on the left (west) side of the grid square is the first and second digits of the coordinates. The number of the horizontal grid line on the bottom (south) side of the grid square is the fourth and fifth digits of the coordinates.
How many grid squares are on a globe?
Maidenhead grid squares divide the globe into 324 large areas of 10 degrees of latitude by 20 degrees of longitude and are called fields. Each field is divided into 100 squares. This is where the name grid squares come from. Each of these 100 squares represent 1 degree by 2 degrees.
What are the vertical grid lines on a map called?
A grid of squares helps the map-reader to locate a place. The vertical lines are called eastings. They are numbered – the numbers increase to the east. The horizontal lines are called northings as the numbers increase in an northerly direction.
What is QRZ Ham Radio?
QRZ.com is an amateur radio callsign website, which houses almost every callsign in the world. Founded by Fred L Lloyd in 1992, a huge amount of effort was put in to work with the FCC database, to create a CD-ROM with all callsigns issued. … It is one of the most recognized websites for amateur radio enthusiasts.
How accurate is a 10 digit grid?
The confusion comes in when soldiers try to use a map to get a 10-digit grid coordinate, which equates to a 1 meter precision. A 1:50,000 scale map is only accurate to 50m 90% of the time so a 6 digit (100m precision) or an 8 digit (10m precision) are more appropriate.
How close will an 8 digit grid get you?
Read to the right and up and using the 1/50,000 map scale, carefully plot your eight-digit grid coordinate to the point that you are navigating to. Remember, four-digit grids get you to within 1000 meters, six-digit grids to within 100 meters and an eight-digit grid gets us to within 10 meters.
How do you read a grid?
An easy way to remember this is that to get the first number, you go along the corridor (horizontal, x axis, eastings) and then up the stairs (vertical, y axis, northings). For example, the number 2 in the diagram below is square 19 across and square 45 up and therefore, the four-figure grid reference is ‘1945’.