Electronics, PCB Design and PCB Layout Daycounter, Inc.
Engineering Services

Custom Firmware, Electronics Design, and PCB Layout

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Capabilities

Electronics Design
Firmware Development
Software Development
Embedded Design
PCB Layout
Digital Signal Processing (DSP)
Reverse Engineering
Prototyping
Device Driver Development
VHDL
Motor Controllers
Microcontrollers
Data Acquisition Systems
Palm OS Software
Windows CE Software
Pocket PC Software
Design for Manufacturing
Through Hole to Surface Mount (SMT) Conversion 
Microchip PIC Consultant
MSP430 Development
DSP56 Development
RoHs Redesign
Design for USB

Decibels (dB) Calculator

See our other Electronics Calculators.

Decibels are defined as ten times the log of a power ratio.  Decibels convert multiplication and division calculations into simple addition and subtraction operations. 

This calculator converts between decibels, voltage gain (or current), and power gain.  Just fill in one field and the calculator will convert the other two fields. 

Equations:

dB= 20log(V1/V2)= 10log(P1/P2)

Decibels (dB)  Voltage Gain Power Gain 

The dBm is a logarithmic measure of power compared to 1mW. It can be converted to a voltage, if the load is known.  Typically the load is 50 ohms.

Equations:

dBm= 10log(p1/.001)

   Load=ohms
dBm Power(Watts) Voltage DC Vp of Sinusoid

Manufacturer Links

The best way to find electronic parts is to use our free Electronics Component Directory, where a myriad of electronics manufactures are listed.

Other Electronics Links

We offer a broad range of electrical engineering calculators and electronics articles and tutorials

Daycounter specializes in contract electronics design.  Do you need some help on your project?  Contact us to get a quote.

 

 

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