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WorksheetsAntenna SWR
Total questions: 8
Worksheet time: 4mins
Name
Class
Date
1.
SWR tells us the ratio of the power coming accepted from the antenna as well as the power coming from what?
a)
Power from transmission line
b)
Power from transmitter
c)
Power from exciter
d)
Power from STL
2.
SWR compares power from antenna & transmission line with what?
a)
Power from transmission line
b)
Tower resistance factor
c)
STL signal loss
d)
Power rejected
3.
What measures Standing Wave Ratio?
a)
Pressure meter
b)
RF Ammeter
c)
Reflectometer
d)
Antenna monitor
4.
What is the ideal ratio for SWR?
a)
1:1
b)
2:1
c)
1:2
d)
4:1
5.
Which of the following NOT a common cause of high SWR?
a)
wrong length antenna
b)
problem in transmission line
c)
big tower resistance factor
d)
ice build up on antenna
6.
Which of the following NOT a possible cause of high SWR for an FM station?
a)
wrong length antenna
b)
problem in transmission line
c)
ice build up on antenna
d)
improperly adjusted ATU/doghouse
7.
What does a power foldback system do?
a)
Reduces the transmitter power if there's a significant increase in SWR
b)
Turns off the transmitter power if there's a significant increase in SWR
c)
Keeps the transmitter power output at a designated point
8.
What can be used to prevent ice accumulation on antennas?
a)
De-icers to heat them
b)
Radome covers to prevent accumulation
c)
Both or either de-icers or radome covers
d)
Warmer climate
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