0% Signal Quality means that no measurable signal is being received from the satellite for that particular transponder frequency.
Thanks, fellows.
Carlos:
"No idea what you are trying to do. Are you sending a dish randomly with no coordinates in the sky and trying to do blindscannings? ..."
----> Yes. Properly aimed in elevation to the geostationary belt, sweeping/scanning azimuth/longitudes one at a time. Is there anything wrong attempting that ?