  Wave emissions at frequencies near electron gyrofrequency harmonics are
observed at small heliocentric distances below about 40 solar radii and are
known to occur in regions with quiescent magnetic fields. We show the close
connection of these waves with the large-scale properties of the magnetic
field. Near electron gyrofrequency harmonics emissions occur only when the
ambient magnetic field points to a narrow range of directions bounded by polar
and azimuthal angular ranges in the RTN coordinate system of correspondingly
$80^{\circ} \lesssim \theta_B \lesssim 100^{\circ}$ and $10^{\circ} \lesssim
\phi_B \lesssim 30^{\circ}$. We show that the amplitudes of wave emissions are
highest when both angles are close to the center of their respective angular
interval favorable to wave emissions. The intensity of wave emissions
correlates with the magnetic field angular changes at both large and small time
scales. Wave emissions intervals correlate with intervals of decreases in the
amplitudes of broadband magnetic fluctuations at low frequencies of 10Hz-100Hz.
We discuss possible generation mechanisms of the waves.
