PREFIXES for NUMBERS Electronics, Radio and all of the Science fields use numbers that are wildly large and small. For the sake of working with these large numbers our culture has developed Prefix's to keep the numbers small enough to be workable. These are the most
LOGARITHMIC VOLTAGE RATIOS BY: FRANK McCLATCHIE dB RATIO dB RATIO dB RATIO dB RATIO 6 = 1.995263 5 = 1.778279 4 = 1.584932 3 = 1.412538 2 = 1.258925 1 = 1.122019 0 = 1.000000 -20 = 0.10000 -40 = 0.01000 -60 = 0.00100 -1 = 0.891250 -21 = 0.08913 -41 = 0.00891 -61 = 0.00089 -2 = 0.794330 -22 = 0.07943 -42 = 0.00794 -62 = 0.00079 -3 = 0.707490 -23 = 0.07075 -43 = 0.00707 -63 = 0.00071 -4 = 0.630960 -24 = 0.06310 -44 = 0.00631 -64 = 0.00063 -5 = 0.562340 -25 = 0.05623 -45 = 0.00562 -65 = 0.00056 -6 = 0.501190 -26 = 0.05012 -46 = 0.00501 -66 = 0.00050 -7 = 0.446680 -27 = 0.04467 -47 = 0.00447 -67 = 0.00045 -8 = 0.398110 -28 = 0.03981 -48 = 0.00398 -68 = 0.00040 -9 = 0.354800 -29 = 0.03548 -49 = 0.00355 -69 = 0.00035 -10 = 0.316230 -30 = 0.03162 -50 = 0.00316 -70 = 0.00032 -11 = 0.281840 -31 = 0.02818 -51 = 0.00282 -71 = 0.00028 -12 = 0.251190 -32 = 0.02512 -52 = 0.00251 -72 = 0.00025 -13 = 0.223870 -33 = 0.02239 -53 = 0.00224 -73 = 0.00022 -14 = 0.199550 -34 = 0.01996 -54 = 0.00200 -74 = 0.00020 -15 = 0.177830 -35 = 0.01778 -55 = 0.00178 -75 = 0.00018 -16 = 0.158490 -36 = 0.01585 -56 = 0.00158 -76 = 0.00016 -17 = 0.141250 -37 = 0.01413 -57 = 0.00141 -77 = 0.00014 -18 = 0.125890 -38 = 0.01259 -58 = 0.00126 -78 = 0.00013 -19 = 0.112200 -39 = 0.01122 -59 = 0.00112 -79 = 0.00011 -20 = 0.100000 -40 = 0.01000 -60 = 0.00100 -80 = 0.00010 MULTIPLY OR DIVIDE THESE NUMBERS BY ANY FACTOR THAT ZERO dB IS SUPPOSED TO REPRESENT If you liked this, Click here and sign up for our free monthly newsletter with helpful tips and other
STANDARD RESISTOR VALUES MOVE THE DECIMAL POINT FOR ANY VALUE 1%, 5%, 10% AND 20% ARE LISTED. 1% INCREMENTS . 5% 10% 20% 10.0 10.2 10.5 10.7 10.0 10.0 10.0 11.0 11.3 11.5 11.8 11.0 12.1 12.4 12.7 13.0 12.0 12.0 13.3 13.7 14.0 14.3 13.0 14.7 15.0 15.4 15.8 15.0 15.0 15.0 16.2 16.5 16.9 17.4 16.0 17.8 18.2
ASCII control characters (character code 0-31) 0- 32 characters in the ASCII-table are control codes to control peripherals such as printers. Symbol DEC OCT HEX BIN HTML Number HTML Name Description NUL 0 0 0 00000000 � Null char SOH 1 1 1 00000001  Start of Heading STX 2 2 2 00000010  Start of Text ETX 3 3 3 00000011  End of Text EOT 4 4 4 00000100  End of Transmission ENQ 5 5 5 00000101  Enquiry ACK 6 6 6 00000110  Acknowledgment BEL 7 7 7 00000111  Bell BS 8 10 8 00001000  Back Space HT 9 11 9 00001001 Horizontal Tab LF 10 12 0A 00001010 Line Feed VT 11 13 0B 00001011  Vertical Tab FF 12 14 0C 00001100  Form Feed CR 13 15 0D 00001101 Carriage Return SO 14 16 0E 00001110  Shift Out / X-On SI 15 17 0F 00001111  Shift In / X-Off DLE 16 20 10 00010000  Data Line Escape DC1 17 21 11 00010001  Device
By Frank McClatrchie INDUCTORS SELF RESONANCE EFFECT When purchasing coils and inductors or in the process of selecting them for a project you will come across a specification called Self Resonance that may seem a bit obscure, however that specification should be examined carefully to make sure
Use this table to convert values from dBm into Volts peak to peak, Volts RMS, or milli-Watts.
The satellite television industry delivers its signals using communications satellites in geosynchronous orbit above the earth occupying geostationary position. The United States of America uses the following frequencies for its C-Band, and Ku-Band downlinks.
The SDI (Serial Digital Interface) signals used in the Broadcasting Industry and the CCTV Industry have a set of standards that dictate the levels, frequency bandwidth data rate and many other requirements for good data delivery.
The BESSEL NULL FM deviation measurement is an extremely accurate way to obtain a precise deviation setting on any FM modulator operating at any RF frequency. This test requires a Spectrum Analyzer, Sine-Wave Generator, Audio Frequency Counter, and an accurate dBm meter to verify audio
This design process enables designers to build Low Pass Filters that exhibit much higher accuracy than can be done with 10% inductors and 5% capacitors, using only 1% resistors as the required active components. At the same time, inductors created by the FDNR have very
