0
How many dB attenuation translates into 75 percent of voltage being lost to attenuation?
Wiki User
∙ 14y ago
100 percent means full voltage or 0 dB.
When 75 percent of the voltage is lost you still have 25 percent of the voltage.
25 percent means damped to (-)12 dB.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Does a repeater reduce the effects of attenuation for a digital transmission signal?
It depends on the repeater. Those that receive a signal, buffer it in real time and pass it on as a digital signal will reduce the effects of attenuation. Those that receive a signal and regenerate it with a new clock signal will generally eliminate the effects of attenuation completely.The type of repeater used depends on where and how it is used as well as the signal that is being transmitted.
What is limit of cable run between a secondary distribution center and a power distribution panel if wanting to keep voltage drop below 10 percent for the facility being energized?
150 feet
What does the voltage on a digital multimeter indicate?
It generally reads RMS value of the voltage being measured
When It is required to calculate average voltage and when RMS voltage?
It is usually required in electrical examinations to make calculations. Simple answer to a complicated calculation. Remember, take peak to peak voltage and multiply by .707, the result being average voltage. This is the voltage that electrical test meters read.
What are voltage dividers?
Voltage dividers are used in a linear circuit to separate the input voltage into a small portion known as the output voltage. It is commonly used to get a low voltage signal equal to the voltage being measured.
How many dB of attenuation translates into 50 percent of the voltage being lost to attenuation?
db=20log(V1/V2) or 10log(P1/P2) Example: db=20log (100/50) db=20log(2) db=20*.3010 db=6.02
What is the attenuation level of a twisted pair cable?
Attenuation occurs in all copper cable regardless of whether it is twisted or not. This is because the copper atoms actually 'resist" the electrical voltage being applied (a physics principle).
How Attenuation measured?
RMS Output divided by input, usually expressed in deciBells. Depends on whether it is power or voltage being attenuated. Voltage, it's 20log(Vout/Vin) Power, it's 10log(Pout/Pin) The difference is because power is proportional to voltage squared.
What is dampness?
Damping is the attenuation of vibrations or oscillations.
2 horsepower how many amperes?
There's something missing from this question - voltage. Horsepower translates to Watts, with 1 hp being 735 W. But to get Wattage you need to calculate Amperes x Voltage. W/O voltage there's no way to tell how many amps you need to get 2 hp.
Why is beta radiation used to measure beta radiation?
Because its attenuation is proportional to thickness being penetrated
What term refers to a change in signal strength as a result of some of the electromagnetic energy being scattered reflected or diffracted after being issued by the transmitter?
fading also 'attenuation'
What is the difference between noise and attenuation?
Noise (as related to a radio signal I suppose) is an unwanted signal being processed by a receiver. Attenuation is a loss of the intended signal before it gets to the receiver (usually due to such things as distance, line of sight obstructions, etc.
Does a repeater reduce the effects of attenuation for a digital transmission signal?
It depends on the repeater. Those that receive a signal, buffer it in real time and pass it on as a digital signal will reduce the effects of attenuation. Those that receive a signal and regenerate it with a new clock signal will generally eliminate the effects of attenuation completely.The type of repeater used depends on where and how it is used as well as the signal that is being transmitted.
What is limit of cable run between a secondary distribution center and a power distribution panel if wanting to keep voltage drop below 10 percent for the facility being energized?
150 feet
What does the voltage on a digital multimeter indicate?
It generally reads RMS value of the voltage being measured
What does a vos tambien in English?
I believe it translates to 'to you too', with 'you' being plural.
