On the Pansat 2700 (maybe other Pansats as well?), 30-32 quality is the breakup threshold, meaning anything under that will result in a broken stream. Anything above that should give you a steady stream, but you want higher numbers if possible to give yourself some breathing room during bad weather.
Some transponders are either weak or suffer from cross-pole interference (signal from an adjacent satellite causing errors). Transponder 11720 on G-10R at 123w is a good example of cross pole interference. The PBS channels on AMC-3 are also notoriously weak.
Any transponder that gives you 50 or higher quality (with Pansat 2700) is usually rock solid under most conditions.
Some transponders are either weak or suffer from cross-pole interference (signal from an adjacent satellite causing errors). Transponder 11720 on G-10R at 123w is a good example of cross pole interference. The PBS channels on AMC-3 are also notoriously weak.
Any transponder that gives you 50 or higher quality (with Pansat 2700) is usually rock solid under most conditions.