Radial and distance from a navaid uses a 3-digit bearing and a 3-digit distance. So POL048010
Bookworm,
you are right! you perhaps also noticed that the Navaid name could be two or three characters as well!!!!
The full text reads
Bearing and Distabnce from a navigation aid:
The identification of the navigation aid (normally a VOR), in he form of 2 or 3 characters, THEN the bearing from the aid in the form of 3 figures giving degrees magnetic, THEN the distance from the aid in the form of 3 figures expressing nautical miles, make up the correct number of figures, where necessary, by insertion of zeros - e.g. a point 180 deg magnetic at a distance of 40 nautical miles from VOR "DUB" should be expressed as DUB180040.