The well-known problem of the field produced by a magnetic line dipole on the surface of a lossy conductor is investigated. Suppose

is the frequency of the wave,

the magnetic permeability, and

the conductivity of the conductor. If

is the absolute value of the ratio of the actual field to the free space field, then it is found that

has a maximum value 1.55 at a distance

from the line dipole given by

.