Due respect is paid throughout this technically themed crossword puzzle to the
Greek letter "Xi," which has been dissed by the World Health Organization by
omitting it from the succession of designations for new COVID-19 variants (look
for an asterisk after the clue). Xi has been restored to its rightful place as the
14th letter in the Greek alphabet. Only clues and words are directly to RF, microwave,
and mm-wave engineering, optics, mathematics, chemistry, physics, and other science
subjects. As always, this crossword contains no names of politicians, mountain ranges,
exotic foods or plants, movie stars, or anything of the sort unless it/he/she is
related to this puzzle's technology theme (e.g.,
Reginald Denny or the
Tunguska
event in Siberia). The technically inclined cruciverbalists amongst us will appreciate
the effort. Enjoy!
Reproduction of this puzzle without the express permission of
RF Cafe is prohibited.
acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words
1. Replaced smoke signals 6. Causes circuit path
with very low or 0 ohms of impedance 9. High-speed logic family 13. Write-Once
(abbr.) 14. Type of flip-flop 15. Chemical symbol for californium 16. Greek
letter which comes after Nu* 17. Hub of the solar system (pl.) 18. Write-Once
(abbr.) 20. Creates an impenetrable physical barrier 25. 10E-1 numerical prefix
27. Network department (abbr.) 28. Greek letter which comes before Omicron
29. Current-voltage phase mnemonic 31. Transmitter interference (abbr.)* 32.
An abbreviation for "transceiver" 34. Change connector type 36. Amateur radio
abbreviation for the Oceania region (abbr.) 39. Chemical symbol for calcium
40. Upper frequency (abbr.) 41. Chemical symbol for ruthenium 43. Satellite
of Jupiter discovered by Galileo 45. Chemical compound containing at least one
oxygen atom as well as at least one other element (pl.)* 46. Greek letter recently
dissed by WHO 47. PC follower 48. Chemical symbol for lutetium 53. Its
chemical symbol is Po 55. Shorthand for oxygen 57. Wire mesh wrapped around
center conductor (pl.) 58. The __ baryon is a family of subatomic hadron particles*
59. Brightness of a star 60. Type of matrix barcode used with laser scanning(abbr.)
62. Chemical symbol for tin 63. Project box 67. Switch position 69. Name
the Scottish physicist who developed the theory of electromagnetism 73. The Greek
letter often used as a symbol for potential difference* 74. Constellation : The
scorpion 76. Chemical symbol for manganese 77. Test equipment (abbr.) 78.
Sigma __, the Scientific Research Honor Society* 79. CB slang for accelerator
pedal 81. The imaginary part of a complex quantity 85. Local Oscillator (abbr.)
86. Opposite of O.D. 87. This crossword's celebrated Greek letter* 89. The
notorious "missing COVID-19 variant 90. Balanced-to-unbalanced device 92.
Complex Instruction Set Computer 93. Transmit Incremental Tuning (abbr.)*
95. Period between radar transmitter's output waveform (abbr.) 97. Greek letter
indicating "no change" in Z notation* 98. Chemical symbol for einsteinium
99. Field Programmable Gate Array (abbr.) 100. Rechargeable battery type (abbr.)
102. Greek letter representing a universal set in Set Theory* 103. Elemental
compound used for microwave frequency reference oscillators (abbr., pl.) 105.
Greek letter used for the Correlation Function in astronomy* 106. Chemical symbol
for rhodium 107. Akin to an EE, CE, AE, etc. 108. Chemical symbol for scandium
110. Semiconductor lamp 111. It connects the software to the hardware 112.
System for communicating between areas of a building or vessel (pl.) |
2. Modern battlefield technique (abbr.) 3. Line
of Sight (abbr.) 4. Type of logic gate (pl.) 5. Unit of time (abbr.) 6.
Parameter that is a figure of merit for receiver performance in presence of multiple
signals (abbr.) 7. Receiver interference (abbr.)* 8. Semiconductor and calculator
company (abbr.) 9. Chemical symbol for europium 10. Stock symbol for Conexant
11. Family of ICs with a certain component density level (abbr.) 12. Makes and
breaks circuits 17. Network configuration type (pl.) 19. Amateur radio abbreviation
for the Oceania region (abbr.) 21. Radio signals from the cosmos (abbr.) 22.
x, y, or z on Cartesian coordinates* 23. Chemical symbol for lithium 24. Schematic
label for voltage supply node 26. Constellation : The southern cross 27. Opposite
of O.D. 30. End of Life (abbr.) 33. Unit of apparent power (abbr.) 34.
Mr. DeForest's first vacuum tube amplifier 35. Chemical symbol for plutonium
37. Chemical symbol for chlorine 38. BASIC program command 40. Online venue
for posting comments & reading replies (pl.) 42. _____-wise linear 44.
Transformer interwinding connections 48. Shorthand for liquid oxygen 49. International
phonetic alphabet letter "U" 50. International Telecommunications Union 51.
14th letter in the Greek alphabet* 52. Chemical symbol for aluminum 54. ELI
the ICE ___ 56. Greek letter often used as a symbol for damping ratio* 60.
Ham's code for "Shall I send more slowly?" 61. Basic storage unit of a database
63. 2-part adhesive 64. Mr. Piper's famous yellow airplane 65. Shorthand for
oxygen 66. Unit of conductance 68. Silicon transistor type (abbr.) 69.
BSEE + 2 years 70. The Riemann __ is a simplified form of the Riemann Zeta function*
71. Equalizer (abbr.) 72. Powerful, rapidly varying infrared source 75. UMTS
terrestrial radio access (abbr.) 79. Majority carriers in p-type material
80. Antenna radiated power measurement (abbr.) 82. Application Specific Integrated
Circuit (abbr.) 83. Mate to an RX 84. Input intercept point (abbr.) 85.
Chemical symbol for lanthanum 87. See 87 Across 88. FCC Part 15 rules apply
in this band (abbr.) 90. Eight bits 91. Unit of time (abbr.) 92. Mr. Gauss'
first name 93. It has the value of 60 in Greek numerals* 94. Chemical symbol
for tantalum 96. Mate to a TX 97. Amateurese for "wife" 99. Type of digital
filter (abbr.) 100. On-the-air meeting of hams at a set time, day and radio frequency
101. Digital storage oscilloscope (abbr.) 104. Opposite of I.D. 105. Chemical
symbol for xenon 107. Chemical symbol for manganese 109. Centimeter (abbr.) |
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