Free full access!


Radio theory When raising the frequency of an electromagnetic wave The ? Training > pilot

1
Wavelength decreases.


Radio theory With regard to radio waves propagation a cycle is defined as ?

2
Radio theory with regard to radio waves propagation a cycle defined as A complete series of values of a periodical process.


Radio theory How is the unit 'Hertz' Hz defined ?

3
Radio theory how the unit 'hertz' hz defined The number of electromagnetic oscillations per second.


4
Radio theory the 'amplitude' of an electromagnetic wave defined as Maximum deflection in an oscillation or wave.


5
Radio theory diffraction the process which Radio wave travel over around obstacles.


6
Radio theory frequency defined as Number of cycles occurring in one second in a radio wave expressed in hertz (hz).


7
Radio theory wavelength defined as Physical distance travelled a radio wave during one cycle of transmission.


8
Radio theory the mix of an electromagnetic wave with another called Physical distance travelled a radio wave during one cycle of transmission.


9
Radio theory the phenomenon of a change in direction of an radio wave em wave occurring due to a change in its speed called Physical distance travelled a radio wave during one cycle of transmission.


10
Radio theory the phenomenon which wave energy bends around a permeable obstacle called Physical distance travelled a radio wave during one cycle of transmission.


11
Radio theory vhf very high frequency waves appear in frequency spectrum Physical distance travelled a radio wave during one cycle of transmission.


12
Radio theory when fading damping of a radio wave so important that no signal can be received this phenomenon Physical distance travelled a radio wave during one cycle of transmission.


13
Radio theory to double effective range of a radio transmission power output must be increased a factor of Physical distance travelled a radio wave during one cycle of transmission.


14
Radio theory 'fading' Interference between surface wave sky wave.


15
Radio theory radio waves travel at Interference between surface wave sky wave.


16
Radio theory radio waves travel at a speed of Interference between surface wave sky wave.


17
Radio theory a radio signal looses strength as range from transmitter increases this called Interference between surface wave sky wave.


18
Radio theory an electromagnetic wave has two types of energy field An e electrical field h magnetic field.


19
Radio theory an electromagnetic wave consists of an oscillating electric field e and an oscillating magnetic field h which statement correct The (e) (h) fields are perpendicular to each other.


20
Radio theory an electromagnetic wave consists of an oscillating electric field e and an oscillating magnetic field h their propagation speed The (e) (h) fields are perpendicular to each other.



Exclusive rights reserved. Reproduction prohibited under penalty of prosecution.

2279 Free Training Exam