Parametric amplifiers and masers are similar to each other in that both (indicate false statement):

Must be cooled down to a few kelvins

Are extremely low-noise amplifiers

Generally require circulators, since they are one-port devices

Parametric amplifiers and masers are similar to each other in that bot

1.	Parametric amplifiers and masers are similar to each other in that both (indicate false statement):
A.	Must have pumping
B.
C.	Are extremely low-noise amplifiers
D.	Must be cooled down to a few kelvins
E.	Generally require circulators, since they are one-port devices
Answer» D. Must be cooled down to a few kelvins

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Parametric amplifiers and masers are similar to each other in that both (indicate false statement):

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