{ "@context": "https://schema.org", "@type": "Organization", "name": "Brainscape", "url": "https://www.brainscape.com/", "logo": "https://www.brainscape.com/pks/images/cms/public-views/shared/Brainscape-logo-c4e172b280b4616f7fda.svg", "sameAs": [ "https://www.facebook.com/Brainscape", "https://x.com/brainscape", "https://www.linkedin.com/company/brainscape", "https://www.instagram.com/brainscape/", "https://www.tiktok.com/@brainscapeu", "https://www.pinterest.com/brainscape/", "https://www.youtube.com/@BrainscapeNY" ], "contactPoint": { "@type": "ContactPoint", "telephone": "(929) 334-4005", "contactType": "customer service", "availableLanguage": ["English"] }, "founder": { "@type": "Person", "name": "Andrew Cohen" }, "description": "Brainscape’s spaced repetition system is proven to DOUBLE learning results! Find, make, and study flashcards online or in our mobile app. Serious learners only.", "address": { "@type": "PostalAddress", "streetAddress": "159 W 25th St, Ste 517", "addressLocality": "New York", "addressRegion": "NY", "postalCode": "10001", "addressCountry": "USA" } }

Transponder and TT&C Functions Flashcards

(10 cards)

1
Q

Advantage/Disadvantage of Earth Coverage Beams

A

Advantage:
Large footprint. Covers 1/3 of the earth

Disadvantage:
Does not cover polar regions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Advantage/Disadvantage of Multi-Beam Arrays

A

Advantage:
More resistant to jamming, as individual elements can be turned on and off

Disadvantage:
Smaller footprint = smaller number of users able to access the satellite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Advantage/Disadvantage of Fixed-Spot Beams

A

Advantage:
More resistant to jamming since footprint is smaller and power is higher

Disadvantage
Cannot follow mobile forces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Advantage/Disadvantage of Steerable Spot Beams

A

Advantage:
Can follow mobile forces

Disadvantage:
Smaller footprint = smaller number of users able to access the satellite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Advantage/Disadvantage of Phased Array

A

Advantage:
Flexibility in beam configuration

Disadvantage:
Complex design and costly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the functions of TT&C?

A
  1. Telemetry
    State of health of bus and subsystems
  2. Tracking
    Used by operators to precisely determine a satellite’s orbit
  3. Command
    How the satellite can be reconfigured in response to RF signals from the ground
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the Downlink Footprint?

A

The transmission path from a satellite to Earth stations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the Uplink Footprint?

A

The transmission path from an Earth station to a satellite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the two channelizing techniques?

A

Fan-in and Fan-out

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a Transponder?

A

A series of interconnected units forming a single communication channel between the receiver and transmit antennas

Transponders are a communication path or “channel” rather than a specific piece of equipment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly