dBm, Volts, Watts Conversion 
dBm defined as power ratio in decibel (dB) referenced to one milliwatt (mW). It's an abbreviation for dB with respect to 1 mW and the "m" in dBm stands for milliwatt.

View our other RF Conversion formula sheets:

• Useful formulas for RF related conversions
• Antenna Factor and Gain Calculations
• Magnetic field conversions
• Field Intensity Calculation
• Antenna Beamwidth Coverage Calculations
• Frequency and Wavelength Calculator
• VSWR Calculations

Here is a pdf version of our product catalog.

Articles, Test Guides and Webinars

Welcome to A.H. Systems, inc.
A.H. Systems has been established since 1974 and manufactures a complete line of affordable, reliable, EMI test equipment. Our individually calibrated EMI Test Antennas, Preamplifiers, Current Probes and Low-Loss Cables satisfy many test standards including CISPR, MIL-STD, FCC, EN, VDE, IEC and SAE. With a wide variety of mounting configurations, we can also offer tripods and accessories that compliment other EMI testing equipment used to complete your testing requirements. We are also committed to providing all of our clients with no cost prompt and professional technical support. Manufacturing high quality products at competitive prices with immediate shipment plus prompt technical support are our goals to improve the quality of your testing requirements.