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card_52554.txt
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Text File
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1994-05-12
|
988b
|
42 lines
-- card: 52554 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 7720
-- name: #171
----- HyperTalk script -----
on openCard
global group,rightone
put 18 into group
put "D" into rightone
pass openCard
end openCard
-- part contents for background part 20
----- text -----
Question #18
-- part contents for background part 1
----- text -----
4BD-4.4 Why is an RF attenuator desirable in a receiver used for direction finding?
-- part contents for background part 11
----- text -----
It narrows the bandwidth of the received signal
-- part contents for background part 27
----- text -----
It eliminates the effects of isotropic radiation
-- part contents for background part 28
----- text -----
It reduces loss of received signals caused by antenna pattern nulls
-- part contents for background part 29
----- text -----
It prevents receiver overload from extremely strong signals
-- part contents for background part 43
----- text -----
Correct answer is D