Recent questions tagged propagation

Description : Explain ionospheric propagation with neat sketch. Explain two properties of layers of ionosphere.

Last Answer : Diagram :   Explanation: The transmitted signal travels into the upper atmosphere where it is reflected back to earth due to the presence of layers called as ionosphere in the upper ... having highest electron density of all layers, due to this F2 layer remains present at night time.

Description : A 3 -stage ripple counter has Flip Flop with propagation delay of 25 nsec and pulse width of strobe input 10 nsec. Then the maximum operating frequency at which counter operates reliably is

Last Answer : A 3 -stage ripple counter has Flip Flop with propagation delay of 25 nsec and pulse width of strobe input 10 nsec. Then the maximum operating frequency at which counter operates reliably is 12.67 MHz

Description : What is the propagation delay of a logic gate?

Last Answer : The application input pulse and the occurrence of resulting output pulse is called propagation delay of logic gate.

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