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AM signals are lower frequency - low enough to be reflected by the earth's ionosphere, but FM is much higher frequency, so isn't reflected.

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Is step signal is a DC signal?

A: while a step can be of both polarity but it is a level change and it is DC LEVELS


What is meant by sampling in analog to digital conversion?

while conversion of analog signal to digital signal, we need to convert continuous analog signal to discrete signal. this can be done by dividing the analog signal into specific time slots. this process is known as sampling. there is a condition for sampling that can be given as follows. fs<=2fm


What is the difference between signal and event?

The main different between a traditional signal and a message is their recipient. A signal is often sent to a mass of people, while a message is more individualized.


How can semaphore be used to enforce mitual exclusion?

semaphore is a variable providing mutual exclusion in following manner- -It consist of two function called wait and signal, wait() { while(semav==0); semav--; } signal() { semav++; } where semav is semaphore. we apply wait() and signal() in following manner- while(true) { <entry section>; wait() <critical section> signal() <Exit section> } note that wait() always comes before signal(), a process is not allowed to execute critical section if the semaphore has a value 0 i.e. at most one process can execute critical section at a time.


What is signal unknown signal received error message in FPGA xilinx software?

Any signal would have four states high indicated by 1, low indicated by 0, high impedance indicated by Z and unknown indicated by X. An unknown signal often occurs when you have not connected the pin to anything or you are trying to take output from the pin while it is not really giving the proper output

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1999 Ford F-250 Turn signals not working No power to either left or right turn signal fuse What else could it be?

Replace turn signal flasher wiggle your fuses while signal is on--After weeks and lots of $-my fuses were loose in the sockets-had to shim them up with foil=dont replace the fuse box it costs hundreds


How far does cell phone coverage extend into the Atlantic Ocean?

i live in st. johns Newfoundland which is 500 hundred miles off the continent and we have a very good cell service I work onboard ships, after leaving port I can get a signal for up to 15 miles from shore. In the Norwegian sector of the North sea they have repeaters on the oil platforms so can get a signal while hundreds of miles from shore.


Ann Cobb lives 20 miles due north of her favorite radio station While driving due east from her house she was able to keep the radio signal for 75 miles What is the broadcasting range of her favori?

The broadcasting range of her favorite radio station is 85 miles. This is because Cobb's ability to keep the signal while driving 75 miles east indicates that she would be at the edge of the station's range when driving north from her house, which is 20 miles away from the station. This makes a total of 75 + 20 = 85 miles.


Ann Cobb lives 20 miles due north of her favorite radio station. While driving due east from her house she was able to keep the radio signal for 75 miles. What is the broadcasting range of her favorit?

77.62 miles in the direction toward where she was when she lost the signal. (On a bearing of roughly 75 degrees from the radio station).


How far from Brazil to Arkansas?

Depends on where in Arkansas and where in California? California is the 3rd largest state, and is roughly 250 miles wide and 770 miles long, while Arkansas is 240 miles wide by 260 miles long. Depending on where you want the distances measured, it can change your answer by hundreds of miles.


What is the biggest Tornadoes or cyclones?

Cyclones are far larger. Cyclones are hundreds of miles across while tornadoes are usually less than a quarter of a mile wide.


Can marijuana make you loose control while driving?

while being high, can marijuana make you loose control?


What is different between optical fiber signal and electrical signal?

A fiber optical signal is based on the transfer of photons, while an electrical signal is based on the transfer of electrons.


What is the Amplitude of a signal measure?

The amplitude of a signal is the measure of the maximum magnitude of the signal from its equilibrium value. It represents the strength or intensity of the signal. A higher amplitude indicates a stronger signal, while a lower amplitude indicates a weaker signal.


Is step signal is a DC signal?

A: while a step can be of both polarity but it is a level change and it is DC LEVELS


Do you lose fat while excersing?

No you can't loose fat while excercising


Why is it dangerous to loose blood?

While it is not life threatening to loose blood, it is fatal to loose a very large amont of blood. Which after, results in what is called a "memorage"