function Decoder(b, port) {

// LSB, Least Significant Bit/Byte first! Your node likely sends MSB instead.
// Sign-extend the 3rd and 6th bytes into a 4th and 8th byte:

var lat = (b[0] | b[1]<<8 | b[2]<<16 | (b[2] & 0x80 ? 0xFF<<24 : 0)) / 10000;
var lng = (b[3] | b[4]<<8 | b[5]<<16 | (b[5] & 0x80 ? 0xFF<<24 : 0)) / 10000;
return {
location: {
lat: lat,
lng: lng
},
love: "TTN payload functions"
};
}