Fyne: you do not want a plain old grounding block; you want a gas-discharge type surge supressor, similar to Tru-Spec model GRB-ARM. The grounding block will shunt any transients on the shield back to a good ground connection, but will not protect the center conductor, which is where most of the damage can occur if induced into your receiving equipment, be it a TV, a radio tuner, VCR tuner, whatever.
Yes signal losses do occur, but not so much from the protection device itself as from the two type-F connections (input & output). Expect around 0.5dB to 0.75dB typical loss through the whole arrangement, which is quite acceptable if the entire system is properly designed.
Yes signal losses do occur, but not so much from the protection device itself as from the two type-F connections (input & output). Expect around 0.5dB to 0.75dB typical loss through the whole arrangement, which is quite acceptable if the entire system is properly designed.