Index
Communications Crossword
Crossword
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Across: 4. This increases the amplitude of a signal 5. This component extracts the information that has been coded onto a radio signal 7. A device for measuring voltage, current or resistance. 8. A binary word made up of eight bits. 10. A block in a telephone system that controls the links between handsets. 11. An instrument for studying signals in a circuit 13. This is placed around electrical wires to prevent short circuits. 14. The input/output of a telephone system containing the microphone and the loudspeaker. 16. A device that handles the flow of packets in the internet 17. The process of taking an analogue signal and coding it as a binary word. 18. A component that removes ac signals except for a certain range of frequencies.
Down: 1. A device which allows communication between a computer and an ISP through the telephone network. 2. The maximum voltage or current in a signal 3. Altering the information in a signal to reduce the bandwidth or space needed to store it. 6. Sends out information coded as radio waves. 7. Altering a radio frequency wave so it can carry information. 8. A number system in which all quantities can be expressed as a set of 0's or 1's 9. A safety device to protect an appliance if the current becomes too high. 12. A wave used in cell phones (or mobile phones) 15. Receives an incoming radio signal.
Index