The cancellation effect is most noticeable at frequencies where the loudspeakers are separated by a quarter wavelength or less; low frequencies are affected the most.
2.
In the case of rotation by 360? cancellation effects are observed, whereas in the case of rotation by 720? the beams are mutually reinforcing.
3.
Selective fading manifests as a slow, cyclic disturbance; the cancellation effect, or " null ", is deepest at one particular frequency, which changes constantly, sweeping through the received audio.
4.
Numerical evaluation of Li " " n " ( " z " ) by this series does not suffer from the cancellation effects that the finite rational expressions given under particular values above exhibit for large " n ".
5.
As a conventional antenna of 225 degrees has an efficiency of about 440 mV / m / kW at 1 km, exceeding that of a 120 over 120 degree pseudo-Franklin, one might naturally assume that a 225 degree antenna would be preferred, but this is not the case for powers above about 5 kW as a self-cancellation effect occurs in the fringe reception area.
मोबाइल