ACROSS 2 Polish Astronomer, Nicolaus ... 9 Offset Frequency Shift Keying 12 Greek letter 13 System for guiding aircraft, abbr. 14 Application Specific Integrated Circuit 16 Data conversion device, abbr. 17 Metal and plastic parts designer, abbr. 18 Type of flip-flop 20 One port of an amplifier 21 Frequency source manufacturer in Whippany, NJ 22 Hz 23 Receiver design concern, abbr. 25 Electrical connection 28 Wire 30 Miniature threaded RF connector 32 One component for calculating MDS, abbr. 33 Type of impedance chart 36 Chemical symbol for arsenic 37 30 kHz to 300 kHz 39 An angle of less than 90 degrees 40 Computer communication scheme, abbr. 42 Display type 44 Symbol for resistance 46 Instrument for measuring resistance 50 Software drafting, abbr. 51 Over Voltage Protection 52 Logic gates 53 Mass unit, abbr. 55 1e-6 mA 56 Component of product cost, abbr. 57 Wire termination type 58 Very Small Aperture Terminal 60 Exclusionary prefix 61 Test equipment manufacturer, abbr. 62 Positive Emitter-Coupled Logic 63 Tuning step | DOWN 1 Inventor of the mercury barometer 3 Optical Cross Connect 4 Ratio of circumference to diameter 5 Half of the diameter, pl. 6 Negative Temperature Coefficient 7 Semiconductor die, abbr. 8 Compiler directive 10 Government lawyer, abbr. 11 Degree of IC sophistication 15 Room-to-room communications system 16 Asynchronous Transfer Mode 17 Multiprotocol Label Switching 19 Miniature threaded RF connector 21 Waveform point of maximum voltage 22 Super glue, abbr. 24 Logarithmic units of power 26 Collections of access points 27 Capable of being cascaded 29 A front-end component, abbr. 31 1/000 of an amp 34 Changes to the liquid phase 35 Amateur radio enthusiast 38 A BPF specification 41 Semiconductor manufacturer 43 Noah's dry Earth detector 45 Gallium Nitride 47 Test equipment manufacturer, now goes by Agilent 48 Log onto a hard drive 49 Unit of energy 51 Used logic gates 54 Spark ___ 57 Line Of Sight 58 Virtual Private Network 59 Test equipment, abbr. 60 Greek letter 61 Symbol for helium |