==%==
#include <stdio.h>
#include <hamlib/rotator.h>

int main(int argc, char ** argv) {
    double s1long, s1lat, s2long, s2lat;
    char s1qra[] = "EM37cg";
    char s2qra[] = "jn97om";
    double dist = 1000, az = 90;

    locator2longlat(&s1long, &s1lat, s1qra);
    locator2longlat(&s2long, &s2lat, s2qra);

    printf("W0BTU coords: lat: %f lon: %f\n", s1lat, s1long);
    printf("HA2OS coords: lat: %f lon: %f\n", s2lat, s2long);

    qrb(s1long, s1lat, s2long, s2lat, &dist, &az);

    printf("distance between W0BTU and HA2OS: %f km, dir: %f\n", dist, az);
    return 0;
}
==%==