First line is 200 character long:

(X) - Width of variable is X number of characters


1 - radar name (4)		// 4 letter character string
2 - radar height (5) 		// MSL (meters) (float)
3 - radar latitude (8)		// degrees (float)
4 - radar longitude (8)		// degrees (float )
5 - year (4)			// UTC (int)
6 - month (2)			// UTC (int)
7 - day (2)			// UTC (int)
8 - hour (2)			// UTC (int)
9 - minute (2)			// UTC (int)
10 - second (2)			// UTC (int)
11 - volume scan (4)		// volume number (int )
12 - VCP (2)			// volume coverage pattern (int)
13 - tilt number (2) 		// 0 since this is composite sweep
14 - tilt angle (5) 		// ditto
15 - number of data columns (5) // (int)
16 - number of data rows (5)	// (int)
17 - start azimuth (5) 		// azimuth of first radial (degrees) (float ) 
18 - delta azimuth (5) 		// d_theta (degrees) (float )
19 - start gate (5) 		// distance to first gate (meters) (float)
20 - delta gate (5) 		// gate resolution (meters) (float)
21 - data scale value (5) 	// divide data by this to get actual value (float)
22 - missing value (8) 		// value given to "missing" data (float)
23 - product code (3) 		// not important (int)
24 - units code (2)  		// not important (int)

The rest of the file is the actual data. Divide by the scale value to get the data value.
The delta_theta is fixed at one degree. The delta_r is fixed at 1000
meters.

In other words, the first data column is at 0 degrees, the next column is
1 degree, then 2 degrees, etc. The first row starts at 500 meters, the
next row is 1500 meters, then 2500 meters, etc.

Each data "point" in the file is at azimuth ((column number * 1.0) - 1.0)
degrees and at row ((row number * 1000.0) - 500.0) meters.