Communication Systems October 08, 2013
Communication Systems
Tonight's Homework Communication Technology handout
Whiteboard Check-in What do all space probes have in common?
Objective Identify and explain the components of a communications system
Mr. Britton Science Communication Systems October 08, 2013
Space Probes
A spacecraft that carries scientific instruments that can collect data, but has no human crew
Each probe has a: 1. power system to produce electricity, 2. communication system to receive and send signals, 3. and scientific instruments to collect data and perform experiments
Mr. Britton Science Communication Systems October 08, 2013
A List of Some Space Probes
1. WMAP 26. Galileo 2. Spitzer Space Telescope 27. Dawn 3. Chang'e 2 28. Rosetta 4. Kepler 29. Hayabusa 5. Herschel Space Observatory 30. NEAR Shoemaker 6. Planck 31. Mars Reconnaissance Orbiter 7. IKAROS 32. Mars Express 8. Pioneer 10 33. 2001 Mars Odyssey 9. Pioneer 11 34. Mars Global Surveyor 10. Voyager 1 35. Viking I 11. Voyager 2 36. Viking II 12. New Horizons 37. SOHO 13. ICE (formerly ISEE3) 38. ACE 14. Vega 1 39. Genesis 15. Suisei 40. WIND 16. Vega 2 41. LADEE 17. Sakigake 42. Mariner 9 18. Giotto 43. Mariner 7 19. Deep Space 1 44. Mariner 6 20. Stardust (redesignated NExT) 45. Mariner 4 21. Deep Impact (redesignated EPOXI) 46. Juno 22. Impactor 47. MESSENGER 23. Huygens 48. Nozomi 24. Cassini 49. Venus Express 25. Ulysses 50. Magellan
Mr. Britton Science Communication Systems October 08, 2013
BINARY - how computers talk
Binary (meaning 'two') is the ones and zeros that computers use. • 1 for on and 0 for off. • circuit is either off or on (except in quantum computing)
By grouping 1's and 0's together, a computer, or electrical circuit can create letters numbers and 'True' or 'False. Every bit of info in a computer has a binary code assigned to it and the computer knows these, for example, the letter 'A' converts to '01000001' in binary.
From: Binary Numbers for Dummies
Mr. Britton Science Communication Systems October 08, 2013
hello
01101000 01100101 01101100 01101100 01101111
Mr. Britton Science Communication Systems October 08, 2013
Practice encoding and decoding
Visit http://encodertool.com/binary
Mr. Britton Science Communication Systems October 08, 2013
Components of a Communication System
Mr. Britton Science Communication Systems October 08, 2013
Mnemonic Time
Dear King Philip Come Over For Good Soup Domain Kingdom Phylum Class Order Family Genus Species
Source Encoder Transmitter Receiver Decoder Storage Retrieval Destination
Mr. Britton Science Communication Systems October 08, 2013
MCAS Open Response Practice
1. Answer in complete sentences. 2. Restate the question in your answer. 3. Make sure you are answer ALL parts of the question. 4. Use diagrams or pictures when appropriate.
Mr. Britton Science Communication Systems October 08, 2013
4. Use diagrams or pictures when appropriate.
A communication link between a Coast Guard patrol boat and its base shown below.
The boat uses the satellite to communicate its position to the base a. Explain the purpose of a decoder in a communication system. b. Identify one of the decoders in this system and describe how it i c. Explain the purpose of a transmitter in a communication system. d. Identify one of the examples of a transmitter in this system. For transmitter you have identified, explain its specific role.
Mr. Britton Science Communication Systems October 08, 2013
The diagram below shows how computers can record, store, and play back music.
1. Identify one step in this process where information is encoded. 2. Identify one step in this process where information is decoded. 3. Describe one reason why sound from the trumpet must be converted into electrical signals before the information can be stored in the computer’s memory. 4. Describe one way that digital information stored on computer 1 can be transmitted to computer 2.
Mr. Britton Science Communication Systems October 08, 2013
Mr. Britton Science