Attempt all the questions. There is only one correct answer to each question. Click to show all questions. When you have completed the quiz press the back button to return to your last page.
An antenna polar diagram shows
The power in watts transmitted in each direction
The power in dBs radiated in different directions
The amount of RF that will reach the North Pole
The amount of RF that will reach the South Pole
A transmitter has an output of 25 Watts and is fed into a Yagi antenna with a gain of 12dB. What is the ERP from the antenna?
37 Watts
200 Watts
300 Watts
400 Watts
In a 3 element HF beam with fixed element lengths which would be the longest?
The director
The driven element
The reflector
All three would be the same length
Which are the two fields created when an RF signal is applied to an antenna:
The capacitive field and the inductive field
The magnetic field and the resistive field
The magnetic field and the electrical field
The magnetic field and the capacitive field
The polarisation of an antenna is determined by the