What is a good line attenuation for broadband?

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.

What is broadband attenuation?

Broadband signals from the exchange suffer attenuation as they travels along the cable from the exchange to your broadband modem, reducing the speeds that can be delivered. In general, the longer the total distance between your modem and the exchange, the more that signals are attenuated.

What is good line attenuation for VDSL?

Optimal values should be between 5 dB and 30 dB (for excellent and good line). An attenuation value of 45 dB and above means that the line is not suitable for VDSL to use.

How do I reduce attenuation on ADSL line?

Luckily, there are some things you can do to improve the SNR margin:

Buy a router that is good enough to manage low SNR margin figures.
Install a good quality ADSL filter to your router and to each phone device installed on the same line.
Try to change the ADSL provider, as some providers are less crowded than others.

How do you increase 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 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 is SNR and attenuation?

SNR Margin is a value to set in order to get the speed you desire. It’s the difference between the actual SNR (dB noise) and the line attenuation required to sync at a specific speed. This also depends on the ADSL technology, ADSL (up to 8 Megabits), ADSL2 (up to 12 Megabits) or ADSL2+ (up to 24 Megabits).

What’s the difference between VDSL and VDSL2?

How fast is VDSL in comparison to VDSL2? VDSL can support downstream and upstream rates of 100 Mbps. VDSL2 on the other hand, can reach theoretic downstream and upstream data rates of up to 200 Mbps at its source. VDSL2 also supports a wider frequency range of 30 MHz in comparison to VDSL’s 12 Mhz frequency range.

How do you fix high line attenuation?

How do I lower my attenuation?

Lower loss dielectrics. Signal attenuation can be reduced through a selection of lower loss materials at an increased cost rather than reducing the PCB routing length. Materials with lower attenuation are achieved through a change in the epoxy throughout the glass weave to achieve a lower dissipation factor.

What can cause attenuation?

What Causes Signal or Cable Attenuation?

Frequency and Noise. All networking and electrical cables give off an electromagnetic frequency within the cable or wireless vicinity.
Physical Surroundings.
Distance.

What is a good attenuation?

In short, the lower this number is, the better: 20dB and below is outstanding. 20dB – 30dB is excellent. 30dB – 40dB is very good.

What does line attenuation mean on a router?

Line attenuation is in relation to the “loop loss” on your line. The lower this figure the better, and the better chance you have of getting the faster speeds. Attenuation is a term used to describe the reduction of the adsl signal strength that occurs on the copper pair over distance and is measured in dB decibels.

What is SNR margin and line attenuation for ADSL?

This also depends on the ADSL technology, ADSL (up to 8 Megabits), ADSL2 (up to 12 Megabits) or ADSL2+ (up to 24 Megabits). Calculation example: Desired downstream in Kilobits per second: 8096 (ADSL) SNR: 44 dB Attenuation: 35 dB SNR Margin: 44-35 = 9 dB

What’s the difference between SNR and line attenuation?

It’s the difference between the actual SNR (dB noise) and the line attenuation required to sync at a specific speed. This also depends on the ADSL technology, ADSL (up to 8 Megabits), ADSL2 (up to 12 Megabits) or ADSL2+ (up to 24 Megabits). Calculation example: Desired downstream in Kilobits per second: 8096 (ADSL)

What does two sets of signal attenuation mean?

Routers that display two sets of attenuation figures are usually reporting the Signal Attenuation and Line Attenuation. In these cases it can be taken to mean:- Line (or Loop) Attenuation is an average of all the tones available for use in the relevant dsl spectrum – regardless of if the tones are in use or not.