The SVG's (replaced with png's in non SVG capable browsers, eg IE8 and lower) can be increased in size using the      menu on the left. The data is taken from the ISP's DSLAM in the exchange, not from end users routers, so the current rate is the synchronisation rate between the DSLAM and the end users router and not the throughput of the connnection. The data was gathered for the xDSL calculator and is displayed here for it's own sake.
The data has not been cleaned with the exception of removing any fixed rate profiled data.

Downstream sync rate versus the circuits line length


Downstream sync rate versus the circuits line length, with each data point color coded dependent on it's attenuation.


Downstream sync rate versus Attenuation


Downstream sync rate versus SNR


Downstream sync rate versus Output Power


Downstream sycn rate versus celerity line loss


Downstream sync rate versus earth capacitance.