SF (1080pSF) in this case means segmented frame
A search here on the Cow would supply info relevant to your specific issue also.
PsF is a transmission protocol, designed for legacy compatibility and is typically used over HD/ SDI , your device decided whether you are seeing P or PsF.
It is designed after (and mimics) the "double shutter" technique used to playback 24fps film in theaters, were every frame is exposed to the screen 2 times.
gary adcock
Studio37
Post and Production Workflow Consultant
Production and Post Stereographer
Chicago, IL
http://blogs.creativecow.net/24640