Watts db calculator
[PDF File]CONVERSION CHART dBm Watts Vrms V pp
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CONVERSION CHART dBm Watts Vrms V pp Note: The power to voltage conversions shown are valid only for Sine Waves and 50 Ohm Load Impedance. This chart is a handy reference when tinkering with oscilloscope and spectrum analyzer displays.
[PDF File]AUDIO CIRCUIT CALCULATION - Austin, Texas
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CKT # 0.00 Watts 0 ft. 0.00 dB 0 ft. 0.0 Ohms CKT # 0.00 Watts 0 ft. 0.00 dB 0 ft. 0.0 Ohms Appliance Summary Total Load (Watts) 8 10 5 4 0 0 0 80% OF MAX AVAILABLE= 76 WATTS AMPLIFIER RESERVE CAPACITY BASED ON 80% MAX = ACTUAL AMPLIFIER RESERVE CAPACITY BASED ON 100% OF AVAILABLE POWER =
[PDF File]Effective Radiated Power - HamSCI
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loss. There is a duplexer in the line that exhibits 2 dB of loss and a circulator that adds another 1 dB of loss. This repeater uses an antenna that has a gain of 6 dBd. Our total system gain looks like: System gain = –4 dB + –2 dB + –1 dB + 6 dBd = –1 dB Note that this is a loss of 1 dB total for the system from TPO to radiated power.
[PDF File]A Tutorial on the Decibel - RexburgHams
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dB of gain, the total gain is simply 8 + 15 = 23 dB. Similarly, if a power amplifier with 12 dB of gain is connected to a feed line with 1 dB of loss and then to an antenna with 4 dB of gain, the total gain of that combination is 12 – 1 + 4 = 15 dB. Losses are treated as negative gains. Using a Calculator with Decibels
[PDF File]dBm to Watt Conversion Table - AWT Global
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Negative dBm to Watt Conversion Table dBm Watt dBm Watt dBm Watt dBm Watt 0 1.00 mW - 1 794.33 μW - 36 251.19 nW - 71 79.43 pW - 106 25.12 fW-2 630.96 μW - 37 199.53 nW - 72 63.10 pW - 107 19.95 fW
[PDF File]EMC Related Formulae - Toprudder
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Robert Richards Page 1 03/30/03 EMC Related Formulae Log ↔Linear Voltage dB µV to Volts V =10 ((dB mV −120)/20) Volts to dB µV dB mV = 20 log (V)+120 dBV to Volts V =10 (dBV /20) Volts to dBV dBV = 20 log (V) dBV to dB µV dB mV = dBV +120 dB µV to dBV dBV = dB mV −120 Log ↔Linear Power
Units of Measure; dB, dBd, dBi, dBm, dBW and dB/ V
3 dB or 2 x 50% less in this case). 6 dB is also a power ratio of 4 times knowing that 3 dB = 2x, 6 dB = 4x, 9 dB = 8x, 10 dB = 10x, 20 dB = 100x. 'Log' with an uppercase 'L' used here means in ...
[PDF File]A Tutorial on the Decibel
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A Tutorial on the Decibel Version 2.1 Page 2 of 8 Uses of Decibels Sound intensity or sound pressure level (SPL) is also specified in dB.In this case, the reference level of 0 dB corresponds to a pressure of 0.0002 microbars which is the standard
[PDF File]Application Note R&S® DB CALCULATOR
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Note that adding a dB-value to a dBm-value corresponds to multiplying a power in watts with a dimensionless factor. For example, 3 dBm + 3 dB = 6 dBm is the same as 2 mW 2 = 4 mW which equals a power level of
[PDF File]A Practical Guide to Decibels - University of California ...
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requires a calculator (unless you can do logarithms in your head). The following chart summarizes important ratio to decibel conversions. Ratio Power Ratio in dB Voltage Ratio in dB 0 -∞ dB -∞ dB 1/10 -10 dB -20 dB 1/2 -3 dB -6 dB 1 0 dB 0 dB 2 3 dB 6 dB 10 10 dB 20 dB 100 20 dB 40 dB
WESTINGHOUSE WATTAGE CALCULATOR
westinghouse wattage calculator item to be powered running watts motorized ? qty total running watts starting watts light bulb 100 no 0 0 fan 200 no 0 0 sump pump 1/2 hp 1200 yes 0 0 small kitchen appliances 750 no 0 0 radio 200 no 0 0 space heater 1000 no 0 0 refrigerator/freezer 500 yes 0 0 cell phone charger 10 no 0 0
[PDF File]Power and Voltage Ratios Expressed in Decibels (dB’s)
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dB = 0 can be used as a zero reference; that is to say, set your reference level to a particular value and then use the dB scale to refer all other values to that reference level. Examples: Reference Level = 400 watts. 200 watts = -3 dB 800 watts = +3 dB 400 watts = 0 dB 4000 watts = +l0 dB 40 watts = -l0 dB 650 watts = +2.1 dB 65 watts = -7.9 dB
GUIDELINES FOR DETERMINING THE EFFECTIVE RADIATED POWER ...
412172 D01 Determining ERP and EIRP v01r01 Page 4 GAmp = value of external amplification (if used), in dB. The free space propagation path loss LP is determined from the following equation: LP = 20 Log F + 20 Log D – 27.5 (9) where: LP = basic free space propagation path loss, in dB; F = center frequency of radiated DUT signal, in MHz; D = measurement distance, in meters.
[PDF File]SONARRAY SOuNd COveRAge CALCuLATOR
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SONARRAY SOuNd COveRAge CALCuLATOR ... Satellite spacing is 8’ center to center diSTANCe diSTANCe SPL @ SPL @ SPL @ SPL @ Meters Feet 50 watts 75 watts 100 watts 125 watts 1 3.28 106.0 107.5 109.0 110.0 2 6.56 100.0 101.5 103.0 104.0 ... Moderately Loud 60 dB Ordinary Conversation, Light Traffic 70 dB Vacuum Cleaner, Heavy Traffic
[PDF File]DECIBEL (dB) - University of Hawaiʻi
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The logarithmic charac teristic of the dB makes it very convenient for expressing electrical power and power ratios. Consider an amplifier with an output of 100 watts when the input is 0.1 watts ( 100 milliwatts); it has an amplification factor of P 2/P 1 = 100/0.1 = 1000 or a gain of: 10 log(P 2/P 1) = 10 log(100/0.1) = 30 dB.
[PDF File]EMC Formulas
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dB Calculations dB Watts 2 10 1 Watts Watts dB Log dB Volts 2 20 1 Volts Volts dB Log dB Amps 2 20 1 Amps Amps dB Log New Watts w/dB 10 10 ( ) 10 dB Log Wattsstart WattsNew New Volts w/dB 20 20 ( ) 10 dB Log Voltsstart VoltsNew New Amps w/dB 20 20 ( ) 10 dB Log Ampsstart AmpsNew dB Correction for distance change (antenna far field) 1 2
[PDF File]Appendix 9C: Design Calculations for Electrical ... - Seattle
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1 horsepower (hp) = 746 watts. Note: Motor hp rating relates to motor mechanical output. To determine motor input kVA requirements, the motor efficiency and power factor must be accounted for. In general, for preliminary or rough load calculations, assume: 1 kVA of electrical input power for 1 hp of motor. Example 9C-1 Motors
[PDF File]dBm - volts - watts conversion - Mini-Circuits
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dBm - volts - watts conversion 030609 53 99.9 200 0 0.224 1.00 -49 0.79 -98 2.8 50 70.7 100 -1 0.199 0.79 -50 0.71 .01 µW -99 2.51 49 63.0 79 -2 0.178 0.63 -51 0.63 -100 2.24 .1 pW 48 56.2 63 -3 0.158 0.50 -52 0.56 -101 2.0
[PDF File]PowerFlex Dynamic Braking Resistor Calculator
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PowerFlex Dynamic Braking Resistor Calculator Catalog Numbers 20A, 20B, 20F, 20G, 22A, 22B Application Technique ... Wire to the DB resistor should be no longer than 10 feet from the drive ... The final number must be in watts of power to estimate the resistance value of the
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