{
            const struct rig_state *rs;
            int i;

            if (!rig)
                        return 0;   /* huhu! */

            rs = &rig->state;

            for (i=0; i<FLTLSTSIZ && rs->filters[i].modes; i++) {
                        if (rs->filters[i].modes & mode) {
                                    return rs->filters[i].width;
                        }
            }

            return 0;
}