Online Store
Rentals New Equipment Refurbished Leasing Training Service Calibration Technical Support Articles We buy! Contact Us! Main Page Did you know... You can put an item in your online shopping cart to lock in a price for 30 days ? Affiliate Program ///Motorsport 
Decibel ConversionThe decibel (dB) represents a logrithmic ratio between two quantities and is unitless. If the ratio is refered to a specific quantity this is indicated by a suffix (dBm is referenced against 1 mW and dBV is 1 Volt). Originally the dB was for power ratios, given by dB=10 log (P_{1}/P_{2}) Power is proportional to voltage squared, hence the ratio of voltages or currents across a constant impedence is given by dB=20 log(V_{1}/V_{2}) or 20 log(I_{1}/I_{2})
When working with power, 3 dB is twice, 10 dB is 10 times; When working with voltage or current, 6 dB is twice, 20 dB is 10 times
