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Atomic clocks have a stability of ____(a) 10^-5(b) 10^-8(c) 10^-10(d) 10^-11I have been asked this question by my school principal while I was bunking the class.My question is based upon Available Technologies for Cognitive Radio topic in chapter Cognitive Radio Basics of Cognitive Radio

Answer»

Right choice is (d) 10^-11

Explanation: ATOMIC clocks have a STABILITY of10^-11 . However they consume high power and are large in SIZE. Local oscillators have a stability of10^-6. Local oscillators drift over TIME and may RESULT in inaccuracy of about 90 ns.



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