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Ams 501 Unit 1 Assignment

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Words 1915
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Capt Bélanger-Nzakimuena, O.Z.

Military Communication Systems – AMS 501
Assignment 1

* Some of the questions of this assignment have been discussed as a syndicate and some of these answers have sought the help of the internet. It is therefore a possibility that some similarities occur.

In your own words explain (use your own illustration if it can help)

1. What are the advantages to using radio frequencies as a medium for communications?

a. It is a cheaper form of communication in a sense that it gets rid of all logistical requirements for wiring as radio waves travels through air.
b. It is a more flexible means of communication as you can easily move transmitters and receivers around.
c. Since communications no longer rely on wires, a person can communicate while on the move from point A to point B and doesn’t have to stay in a fixed location.
d. …show more content…
Communications can either be established with a large number of recipients or only with one.
e. As radio waves travel to the speed of light in vacuum, radio communication is very fast. Coupled with the number of recipients one can communicate with, this allows fast dissemination of a message.
f. As ionosphere can reflect radio waves, radio communications can be established over long distances, inter-continents.

2. What is the relationship between time and frequency?

Frequency is defined as the number of times a phenomena repeats itself in a certain timeline. Since radio waves follow a sinusoidal path which repeats itself in a periodical matter, radio frequency is defined as the time is takes for a radio wave to complete one full oscillation (one cycle).

Therefore:

f = n/t where in radio communications, “n” is the number of cycles in a time “t”

Since the period “T” is the time it takes for 1 cycle, using the equation above, we can now apply n = 1 and t = T to give:

f = 1/T

or, inversely

T =

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