Communications

Question 1

What does C&DH stand for?

Answer 1

communication and data handling

Question 2

What is the C&DH

Answer 2

the eyes, brain, and mouth of the spacecraft

it transfers data and information

Question 3

The power flux equation is?

Answer 3

Power/surface area

also called omni direction or isotropic

Question 4

How do you get a larger power/area?

Answer 4

direct energy in a specific direction

Question 5

what is gain?

Answer 5

measure of the antenna’s directivitiy

power directed/power omni

Question 6

EIRP stand for?

Answer 6

effective isotropic radiated power?

Question 7

What does EIRP mean?

Answer 7

relates actual energy delivered to what an isotropic antenna would have to emit

Question 8

What is the general equation for signal?

Answer 8

signal = power leaving the antenna space losscollector area = power recieved

Question 9

What is the relationship between dBW, dBm, W, and mW

Answer 9

30 dBw = 60 dBm = 1000 W = 1000000 mW

there are specific log equations to use

Question 10

What is useful and important to note when using dB?

Answer 10

add that is usually multiplied