1 - I would expect attenuation to remain fairly static. It is a measurement of signal loss most effected mostly by cable type/distance/connections all of which generally remain static.
2 - It depends on the route the cable takes to your house. In my case the exchange is about 600 meters away (line of sight), however the cable route is effectivly a giant U which increases my length to just under 2km
3 - The SNR value is an indication of line noise. 25db for attenuation is I suspect quite an average reading. It would indicate your line is just under 2km in length. If your confident your line is shorter then that then it "could" indicate a dodgy connection or faulty wiring which should show up on a line check. Don't forget the cable coming to your home may not be taking the shortest path!
4 - I believe that on average attenuation increases by around 13.81db per Km (taken from ADSL Calculator by RichardM) However, this can all depend on cable type & connections used.
5 - http://adsl.yesyes.info - Site has some good methods for eliminating internal wiring issues.
I live fairly close to the local exchange and my attenuation is currently 22db (caused by route cable takes to my house.) I was getting around 6Meg download speed when on ADSL Max now my exchange in unbundled it's dropped to between 1+2meg with the very odd peak at 2.7Meg.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
