Entry Probes in Space: Communication and Tracking

What is the primary objective of an entry probe in space research?

• To provide a means of transportation for astronauts
• To collect data from celestial body atmospheres

• To destroy asteroids that pose a threat to Earth
• To establish a communication link with extraterrestrial life

Which instruments are commonly found on entry probes for data collection?

• Sensors

• Telescope

• Radar

• Camera/Spectrometers

What is the operational frequency range for most spacecraft communications using RF systems?

• 100 MHz to 2 GHz

• 300 MHz to 40 GHz

• 70 MHz to 8 GHz

• 200 MHz to 12 GHz

What was the primary goal of NASA's Insight lander's entry probe when investigating Mars?

• To find water on Mars
• To study the possibility of life on Mars
• To study the interior of Mars

• To map the surface of Mars

What are the two main components of space communication systems?

• Transmitters

• Receivers

• Space Station

• Telephone

What is the key difference between Radio Frequency (RF) and Free Space Optical (FSO) communication systems?

• RF systems use light for communication, while FSO systems use radio waves
• FSO systems can penetrate walls, while RF systems cannot
• RF systems have wider wavelengths, while FSO systems are narrower

• Both RF and FSO systems use the same frequency range for communication

In the main telecom equation, what does (P_R) represent?

• Received Power
• Radiation Pattern
• Resonance Peak
• Reflection Parameter

In Free Space Optical, what is the term for the amount that a transmitted beam spreads as it propagates?

• Scattering
• Diffraction
• Refraction
• Divergence

Which of the following factors is NOT included in the main telecom equation?

• Distance

• Received Power

• Transmitted Power

• Modulation rate

It is the basic equation used to calculate open-space communication links

• Beamwidth - Parabolic Antenna

• Free-Space Path Loss

• Friis Transmission Equation

• Shannon-Hartley Theorem