Sample EW Test

This is a sample test so check back every once in a while, we might add questions. Do not type anything in the boxes following each question, as some browsers will reset the form. If you are not getting any comments or answers to appear in the box after you answer each question, you have script turned off so click here for advice!

1. The speed of light is?
Mach 1
765 mph at sea level
3x1012meters/sec
3x108meters/sec

2. UHF broadcast TV is operated near what frequency?
0.6 Hertz
0.6 kHz
0.6 MHz
0.6 GHz

3. "J" band operates from?
1 to 2 GHz
2 to 4 GHz
6 to 10 GHz
10 to 20 GHz

4. What is the 1st harmonic of a 6 GHz signal?
3 GHz
6 GHz
12 GHz
36 GHz

5. A 3 dB attenuator will drop the power to what value from the Peak (P) level?
0.707 P
0.5 P
0.35 P
0.1 P

6. A 3 dB attenuator will drop the voltage to what value from the Peak (P) level?
0.707 P
0.5 P
0.35 P
0.1 P

7. 60 dBm is how much power?
1 Megawatt
10 kilowatts
1 kilowatt
100 watts

8. Duty cycle equals?
Pulse Width/PRF
PW x PRI
PW x PRF
PRI x PRF

9. If power from an isotropic antenna is focused into one hemisphere, how much gain would this antenna have?
-6 dB
-3 dB
0 dB
+3 dB

10. If two 1 watt sinewave signals at 10 GHz are received, how much power could I have?
0 watts
1 watt
2 watts
All of the above

11. For sinusoidal voltage, the half cycle average value is?
1.313 x peak value
0.707 x peak value
0.637 x peak value
0.5 x peak value

12. The frequency (f) relates to wavelength () by the following?
(Where c = speed of light and Pi = 3.14159....)
f = Pi /
f = Pi x
f = c x
f = c /

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