longitude reading measured in degrees with a 1x10^-7 degree lsb, signed 2’s complement

Question

I am receiving data from a gps unit via a udp packet. Lat/Lng values are in hex.

Example Data
13BF71A8 = Latitude (33.1313576)
BA18A506 = Longitude (-1

Answer 1

use this for 2 compliment

private static Decimal ParseHexStringToDouble(string hexNumber) {
    long result = 0;
    result = int.Parse(hexNumber, System.Globalization.NumberStyles.HexNumber);
    return result;
}