half duplex
communication modes: written spoken body language (gestures) mime
the modes of communication used by govt are :-1)radio2)amateur
introduction to modern modes of communication
Transverse modes are classified into different types:TE modes (Transverse Electric) no electric field in the direction of propagation.TM modes (Transverse Magnetic) no magnetic field in the direction of propagation.TEM modes (Transverse Electromagnetic) no electric nor magnetic field in the direction of propagation.Hybrid modes nonzero electric and magnetic fields in the direction of propagation.
TEM TE modes (Transverse Electric) have no electric field in the direction of propagation. * TM modes (Transverse Magnetic) have no magnetic field in the direction of propagation. * TEM modes (Transverse ElectroMagnetic) have no electric nor magnetic field in the direction of propagation. * Hybrid modes are those which have both electric and magnetic field components in the direction of propagation
introduction of satellite based communication
archaic lol
written communication
Smoke signals & drums
Mobile phone, email,
simplex half-duplex duplex
telephone, telegraph, and tell a woman