Element #3H....Good luck!...and remember you will be asked 10 questions from this pool.

1. (E3H1) What is meant by the term antenna gain?

   1.   ?    The numerical ratio relating the radiated signal strength of an antenna to that of another antenna.
   2.   ?    The ratio of the signal in the forward direction to the signal in the back direction.
      
   3.   ?    The ratio of the amount of power produced by the antenna compared to the output power of the transmitter.
   4.   ?    The final amplifier gain minus the transmission line losses (including any phasing lines present).
      

2. (E3H2) What is the term for a numerical ratio that relates the performance of one antenna to that of another real or theoretical antenna?
   

   1.   ?    Effective radiated power.
   2.   ?    Antenna gain.
   3.   ?    Conversion gain.
   4.   ?    Peak effective power.

3. (E3H3) What is meant by the term antenna bandwidth?

   1.   ?    Antenna length divided by the number of elements.
   2.   ?    The frequency range over which an antenna can be expected to perform well.
      
   3.   ?    The angle between the half-power radiation points.
   4.   ?    The angle formed between two imaginary lines drawn through the ends of the elements.
      

4. (E3H4) What is the wavelength of a shorted stub used to absorb even harmonics?

   1.   ?    1/2 wavelength.
   2.   ?    1/3 wavelength.
   3.   ?    1/4 wavelength.
   4.   ?    1/8 wavelength.

5. (E3H5) What is a trap antenna?

   1.   ?    An antenna for rejecting interfering signals.
   2.   ?    A highly sensitive antenna with maximum gain in all directions.
      
   3.   ?    An antenna capable of being used on more than one band because of the presence of parallel LC networks.
      
   4.   ?    An antenna with a large capture area.

6. (E3H6) What is an advantage of using a trap antenna?

   1.   ?    It has high directivity in the high-frequency bands.
   2.   ?    It has high gain.
   3.   ?    It minimizes harmonic radiation.
   4.   ?    It may be used for multiband operation.

7. (E3H7) What is a disadvantage of using a trap antenna?

   1.   ?    It will radiate harmonics.
   2.   ?    It can only be used for single band operation.
   3.   ?    It is too sharply directional at lower frequencies.