ARRL -- The national association for Amateur Radio ARRL -- The national association for Amateur Radio
Don't be forced off the air -- Ad
Find on this site...
Site Index 
  
Search site:
  
Call sign search:
 
ARRL Member Login...
Username:   Password:

  
Register    Forgot userid/password? 
Quick Links...
Text-only 
  • Other Amateur Radio Crossword Puzzlers
  • ARRL Products:
    DXCC, DXing resources and Call Sign listings

    (More)

    HamCall CD-ROM -- Latest US & International call sign listings. CD-ROM.

    The Complete DX'er -- Covers nearly every significant aspect of DXing. 3rd edition.

    The ARRL DXCC List -- February 2008 Edition. DX Century Club (DXCC) rules and current entities listing.

    RSGB IOTA Directory -- Now Shipping! -- Everything you need to know to enjoy collecting islands for the popular worldwide IOTA (Islands on the Air) award.

    ARRL DX Century Club Program (DXCC) -- Award items, available from the DXCC Desk.

    The Amateur Radio Crossword Puzzler

    By H. Ward Silver, N0AX
    October 13, 2006


    Think Small!


    All of our fancy radio and electronic equipment depends on detailed knowledge of the behavior of matter at the smallest of scales. Here is where ICs acquire their characteristics and where memories are stored. At this scale, quantum mechanics takes over! This week's puzzle shrinks its focus down to the level where the world is mostly empty space--the atomic--so your pencil will have to be mighty sharp.

    View/Print as a PDF file (269,973 bytes)

    Across

    1. One micro-nano amp (abbr)
    3. Smallest unit of matter with unique chemical properties
    6. What the L in LED stands for
    11. World time (abbr)
    13. Microwave amplifier
    14. Vacuum-based electronic device
    15. Type of conduction without resistance
    17. Stand by (CW abbr)
    18. ARRL official in charge of a section (abbr)
    19. Exchange or trade
    21. Connections that hold matter together
    24. External size of a round object (abbr)
    26. Prefix used for 1,000,000 ohms
    27. Generates CW with a paddle
    28. Without charge
    30. Animal in Schroedinger's famous experiment
    31. Once around
    33. Lowest satellite path (abbr)
    35. One trillion of 1 Across (abbr)
    36. Adding impurities to a semiconductor
    39. A spark (abbr)
    41. Goes with tear
    43. Pre-Windows operating system
    45. Best type of conductor
    46. Solar panels generate this kind of voltaic energy
    47. Abbreviation for base current
    48. Number of radians in a half-circle
    49. Two or more of 3 Across that form a chemical unit
    53. Passive resonant circuit
    54. A sailor's CQ
    57. Combine
    58. Specifies wire size (abbr)
    60. Ninety degrees from NE
    61. Common term for refraction
    64. Beyond the atmosphere
    66. The peak or highest value (abbr)
    68. VII + IV
    69. Opposite of narrow
    71. CW distress signal
    72. Particle that consists of a helium nucleus
    73. Potential or kinetic

    Down

    1. Combine two things into one
    2. Impedance matching device (abbr)
    4. Husband (CW abbr)
    5. He came up with the equations for electromagnetism
    6. Quantum change
    7. The tax man
    8. Handheld radio (abbr)
    9. To jump directly from one place to another
    10. Normal state of a shack
    12. Obsolete equivalent of Hz
    16. Give off or radiate
    19. Miniature coax connector
    20. Precious metal (chemical symbol)
    21. Radioactive decay by giving off an electron
    22. Faeroe Island prefix
    23. Performance
    25. Operation in order to educate
    27. A giga-micro amp
    29. The absence of a pattern
    30. High energy rays from space
    32. General name for sub-atomic units of matter
    34. Electronic designer (abbr)
    37. Another name for RCA connector
    38. Opposite of stop
    40. Troubleshoot
    41. Travelling energy
    42. Type of backlight for LCD displays (abbr)
    44. Densest form or phase of matter
    46. Hottest form or phase of matter
    48. Subaudible tone trade name
    50. Prefix meaning "all"
    51. Prefix meaning "no longer"
    52. Emitter of coherent light
    55. Repair or renew
    56. Prefix for Indonesian stations
    59. Not difficult
    62. One giga-giga amp
    63. Diode used to switch RF
    65. Prefix meaning "equal" or "peer"
    67. Current version of Windows operating system
    69. You and I together
    70. From (CW abbr)

    Solution


    Page last modified: 03:46 PM, 13 Oct 2006 ET
    Page author: n0ax@arrl.org
    Copyright © 2006, American Radio Relay League, Inc. All Rights Reserved.