What does PFD stand for?

Power Flux Density

The signal power received over a surface area of one square metre, expressed in dBW/m2. Used to quantify the strength of a radio wave at the reception point of an earth-space link.

Pelham Fire Department

Prattville Fire Department

Pebble Fire Department

Peoria Fire Department

Parker Fire Department

Palominas Fire District

Phoenix Fire Department

Perry Fire Department

Paragould Fire Department