Feed line loss is specified in dB per some length (100 feet or 100 meters is common) at a particular frequency. Antenna gain is given in dB, usually compared to an isotropic or dipole …

Here, the square brackets mean “units of dB”. Notice that this formula is easy to remember because it has lots of tens, hence the “deci-” in “decibels”.

This article discusses the basic unit of measurement used in radio signals: the decibel or dB. It is named after Alexander Graham Bell - that is why the “B” is capitalized. There are several …

Standard dB Values Note that 10 log 10 ( 10 ) = 10 dB Therefore an amplifier with a gain G = 10 is likewise said to have a gain of 10 dB. Now consider an amplifier with a gain of 20 dB...... Q: …

W. R. Bennett of Bell Laboratories analyzed the actual spectrum of quantization noise in his classic 1948 paper (Reference 1). With the simplifying assumptions previously mentioned, his …

Common Ratios ... To calculate power: dB = 10 log (P2/P1) To calculate voltage or current: dB = 20 log (V2/V1) dB = 20 log (I2/I1)

Levels of Noise in Decibels (dB) ... For more information on audiology and hearing loss, visit www.HowsYourHearing.org. Visit “Find an Audiologist” to locate and set up an appointment …