What should my line attenuation be?
between 5 and 30 dB
Optimal values should be between 5 and 30 dB (excellent or good line). An attenuation value of 45 dB or higher means that the line is not suitable for ADSL.
How do you fix line attenuation?
How to Reduce Line Attenuation For DSL
- Change the network and connection cables running from your cable to your modem.
- Switch the cables running from your modem to the main source of power in the building you are in.
- Find the phone jack where your modem connects to the phone line in your building.
What is a good attenuation?
Slow internet speed is often a result of a bad attenuation and SNR margin figure….Slow internet speed and distance.
| Attenuation | Performance |
|---|---|
| 20dB – 30dB | Excellent |
| 30dB – 40dB | Very good |
| 40dB – 50db | OK |
| >50dB | Bad |
What should my SNR margin be?
On a good line, BT generally considers that a 6 dB SNR margin is appropriate to maintain a connection without a significant number of drops or errors.
What is high line attenuation?
Line attenuation (loss) is a measure of how much the signal has degraded between the DSLAM and the modem. This is largely a function of the distance from the exchange. The lower the dB, the better for this measurement. High value Line Attenuation very poor.
What causes high attenuation DSL?
What Causes It? Noise. Extra noise on networks, like radio frequencies, electrical currents, and wire leakage, may interfere with the signal and cause attenuation. The more noise you have, the more attenuation you experience.
How do you fix attenuation?
The most common way of dealing with this problem is to use repeaters(a device used to regenerate or replicate a signal)and hubs that will boost the signal strength ad hence prevent attenuation of the signals. This will also increase the maximum range that the signal can travel.
What does line attenuation mean?
Line attenuation (loss) is a measure of how much the signal has degraded between the DSLAM and the modem. The lower the dB, the better for this measurement. Attenuation is logarithmic and each 3dB of attenuation halves the strength of the signal power received.
Is high attenuation good or bad?
The greater the attenuation in a circuit, then more signal will be lost. So lower attenuation cable is always better but it comes at a price. Designers must make tradeoffs between cost, availability and “good enough” designs that make sense for everyone. However, not all attenuation is bad.
What is a good SNR level?
Generally, a signal with an SNR value of 20 dB or more is recommended for data networks where as an SNR value of 25 dB or more is recommended for networks that use voice applications.
How do I lower my attenuation?
What is considered good DSL line attenuation?
The lower the dB, the better for this measurement. Attenuation is logarithmic and each 3dB of attenuation halves the strength of the signal power received. The standard signal attenuation spread for a given speed is somewhere in the region of 15-20dB for ADSL2/2+ speeds and 25-30dB for ADSL1 speeds.
How does attenuation affect the quality of a signal?
Attenuation can happen with any type of cable or wireless connection, including the following: While attenuation is the loss of signal strength, amplification boosts the strength of a signal. However, amplification can also affect the noise in the transmission, potentially degrading the quality of the signal.
Which is less effective at attenuation copper or fiber?
Copper cables, although cheap and common, can be less effective and may experience attenuation more frequently that other types of cables. Fiber cables, however, use glass tubes and send signals through high-frequency wavelengths of light.