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Engineering & Science Crossword Puzzle
October 31, 2021

This Engineering & Science Theme crossword puzzle for October 31st has many words and clues related to RF, microwave, and mm-wave engineering, optics, mathematics, chemistry, physics, and other technical 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

Radio Theme Crossword Puzzle for October 31st, 2021 - RF Cafe


1 Greek letter

4 Power distribution system

8 Units of software code

10 In 2 dimensions

12 Local Oscillator

13 Roentgen equivalent Physical

15 Unit of current

16 Type of current flow

18 Gun safety and education organization, abbr.

20 Receiver parameter, abbr., pl.

23 Personal Digital Cellular

24 Logic family, abbr.

25 Multiplied by

26 Powers pneumatic devices

27 Thermal energy

30 Aircraft tracking system

32 Type of chart used in control systems

33 BER, 8 bits at a time

34 Silicon transistor type, abbr.

36 Self-determine the scale on a DMM

37 Object orientated programming term

39 Basic programming reserved word, pl.

42 ELI the ICE ___

43 _____-wise linear

46 ___-AZIMUTH telescope mount

48 Genetic substance

49 Generated an official engineering change document

50 System On Chip

51 One component of a complex number, abbr.

52 RF amplifier company in San Jose, CA

54 Forward Error Correction

57 Min-to-max voltage of a waveform, abbr.

58 Coronal discharges

60 Has units of radians

62 Miniature RF connectors, abbr.

63 Thread cutting tool

1 Ratio of circumference to diameter

2 Signal-to-Noise Ratio

3 Institute of Electrical Engineers (U.K.)

4 Feed-through hermetic seal material

5 Type of memory

6 Indium phosphide, abbr.

7 10^1 numerical prefix

8 Filter vendor in Salisbury, MD

9 Switch configuration

11 Line extending out from center

12 Low Noise Amplifier

14 Time Division Multiplexing

17 Co-Channel Rejection Ratio

19 Automated Test Equipment

21 Filter company in Mountain View, CA (now Teledyne Microwave)

22 The response of a medium to a driving frequency

23 Attenuator

28 Length x width, pl.

29 Geometric figure with the shape of a doughnut

30 _____-Kutta differential equation method

31 Colorado ski resort town

35 Surfaces

37 Common Mode Rejection Ratio

38 Automatic Network Analyzer

40 10^1 numerical prefix, pl.

41 Rise over run

43 Maximum voltages in a waveform

44 Electrical Overstress, abbr.

45 Erbium Doped Fiber Amplifier

47 Transmission Control Protocol

52 Block an RF signal

53 Error checking scheme, abbr.

55 Last statement in a program

56 Common Gateway Interface

59 Unit of time, abbr.

61 Front edge of a wing, abbr.

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.

2021 Crosswords Archive

Visit the Crossword Express website - RF CafeTake a well-deserved break and try your hand at some of these goodies. Every word in the RF Cafe crossword puzzles is specifically related to engineering, mathematics, and science. There are no generic backfill words like many other puzzles give you, so you'll never see a clue asking for the name of a movie star or a mountain on the Russia-China border.

All of these crossword puzzles were created using the fabulous Crossword Express (now called "Magnum Opus") software.

2024 | 2023 |2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | Sudoku


A cruciverbalist is a person who is skilled at creating or solving crossword puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and "verbalist" from "verbal," indicating a person who deals with words. cruciverbalists are often responsible for designing crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and the techniques used in constructing and solving crosswords. They aim to make puzzles that are both challenging and enjoyable for crossword enthusiasts.

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Radio Theme Crossword Solution for October 31st, 2021 - RF Cafe

Innovative Power Products Passive RF Products - RF Cafe

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ConductRF Phased Matched RF Cables - RF Cafe