Assuming a five dot display on either side of the CDI on the ILS localiser cockpit display, what does each of the dots represent approximately:

1) A Cat III ILS glidepath transmitter provides reliable guidance information down to:

2) A Category 1 Instrument Landing System (ILS) ground installation provides accurate guidance from coverage limit down to:

3) An aircraft tracking to intercept the Instrument Landing System (ILS) localiser inbound on the approach side, outside the published ILS coverage angle:

4) Assuming a five dot display on either side of the CDI on the ILS localiser cockpit display, what does each of the dots represent approximately:

5) ILS is subject to false glide paths resulting from: