Put this in your digital Ham Radio library….nice stuff…..Enjoy….Rick – W5RH
From: Rohde & Schwarz
Subject: dB or not dB? What you wanted to know about decibels but were afraid
to ask.
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dB or not dB?
Everything you ever wanted to know about decibels but were afraid to ask.
True or false? 30 dBm + 30 dBm = 60 dBm? Why does 1% work out to be -40 dB one
time but then 0.1 dB or 0.05 dB the next time?
These questions sometimes leave even experienced engineers scratching their
heads. Decibels are found everywhere, including power levels, voltages,
reflection coefficients, noise figures, field strengths and more. What is a
decibel and how should we use it in our calculations? Get a refresher on
decibels by downloading this paper.
<http://info.rohde-schwarz-usa.com/A40A00UV10pm2el00v0p0JH> > Access the paper
now!
Rohde & Schwarz USA, Inc. | 6821 Benjamin Franklin Dr, Columbia, MD
21046 | 888-837-8772
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