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"dB", aka decibels, is a logarithmic unit of measurement in base 10. A 10 dB change in signal power means that the power has changed by a factor of 10. A 20 dB change relates to a change of power of a factor of 100, etc. dB are computed using 10*log10(power). If measured in amplitude rather than power, this would convert to 20*log10(amplitude).
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having improper termination
using low quality cables or connectors
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A signal increase of 1 dB represents a increase in power.?
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A signal has passed through three cascaded amplifiers each with a 4dB gainWhat is the total gain how much is the signal amplified?
A: The gains add up to 12 db
Why there is a clipping in the signal output when you change the attenuation from 20db to 0 db in function generator?
A: Clipping only occurs if the input surpasses a threshold like the Vbe of a transistor. The 20 Db is really a change3 in voltage of a 100 that is not a small change
What is a 1-dB compression point?
Devices, such as amplifiers can't be linear over all input values. At some point they just can't output the required output power. I.e. an amplifier that increases input power by a factor of 10, may not be able to amplify a signal that comes in that is, let's say 10 watts. The point where the device is outputing 1 dB less POWER (which is roughly running at 80%) than it should is the 1 dB compression point. So lets say a 10 watt signal is input, and that the signal should be amplified by a factor of 10, and should output 100 watts. Let's also say the system output power is actually 1 dB down from the expected value and outputting roughly 80 watts, 10 watts is the input 1 dB compression point. Also, look here: http://www.rfcafe.com/references/electrical/p1db.htm
Another way of saying that the output is 70 percent of the signal input at cutoff frequency is that the output is up or down dB at frequency cutoff?
If the output power is 70% of the input power, then the output is roughly 1.55 dB downcompared to the input.If the voltage at any point of the output waveform is 70% of the voltage at the same pointon the input waveform, and the input and output impedance are equal, then the output is3.1 dB down (rounded) compared to the input.
You will have signal degradation unless you use the amplifier.?
You will have signal degradation unless you use the amplifier.
What is dB mean in signal amplifier?
dB is the abbreviation of Decibel
What is IP3 and IM3?
IM3 degrades the sensitivity of the desired signal as an in band spurious frequency component. IP3 determines the severity of the degradation as a measurement through the linearity of the system.
What does dB equals to?
dB (decibel) is a logarithmic measure of the ratio of two power values, for example, two signal strengths. This is often used for power gain or power loss. For example, a loss of 10 dB means that the signal degrades by a factor of 10, a loss of 20 dB means that the signal degrades by a factor of 100, and a loss of 30 dB means that the signal degrades by a factor of 1000.
What the strongest FM signal booster?
The effectiveness or strength of FM signal boosters is roughly measured in "db". Db means decibels, a measure of signal strength above noise. A quick search revealed boosters for sale ranging from 14db to 25db. More db = stronger.
A signal starts at point x as it travels to point y it loses 8 db at point y the signal is boosted by 10bb as the signal travels to point z it loses 7 db what is the db strength of the signal at point?
A signal starts at point X. As it travels to point Y, it loses 10db. At point Y, the signal is boosted by 5db. As the signal travels to point Z, it loses 7db. What is the db strength of the signal at point Z?
What is the difference between dB SPL and dB SL?
There are several types of dB. dB SPL are decibels measuring sound pressure levels. There is an accepted reference point of 0 dB SPL which equals 20 micropascals = 2 × 10-5 pascals. dB SL are decibels measuring a signal relative to an individuals auditory threshold. For example, if a person's minimum threshold is 30 dB HL (yet another type of decibel measuring how much worse a person's hearing is based on a referential dB level) and a signal is at 40 dB HL, the sensation level of this signal to this individual is 10 db SL (40 dB - 30 dB = 10 dB SL).
A signal increase of 1 dB represents a increase in power.?
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Which squelch level blocks more noise -93 dB or -103 dB?
-103dB, but it will block more signal too.
What is meant by term signal degradation?
degration means to degrade something.
What is the characteristics of wireless transmission - signal degradation?
sial la puiii
What does the twisting of the wires do in a CAT 5 cable?
limits signal degradation
