Posts by Trebus

NBN must limit downloads to 12 Mbps downloads until copper handover

Does not make sense

I do not think the described rules apply in the UK, and they are not applying in TPG's FTTB.

There are mechanisms to 'shape' the spectrum, chnaging the amplitude in different frequency ranges. Since the VDSL and ADSL spectrum only overlaps for a maximum of 24Mbps worth of spectrum, the higher frequencies can be run at full amplitude. That leaves some 70Mbps+ that will not interfere.

Since some 50% of the ADSL spectrum is not usable by the time it reaches the node, there is no need to attenuate that part, and the 0-12Mbps part of the spectrum could be attenuated to match the long-distance exchange signals, and still provide better quality signal as well as less interference.

So really, most of the spectrum is usable without any greater impact on existing services.

Crosstalk is a function both of amplitude and distance. With the same amplitude as the already attenuated signal plus the reduced distance, the new FTTN will be less disruptive than the exchange signals.

No, Optus: don't try US-style net neutrality arguments in Oz

Still ignoring Telstra and Gang of Four

While the discussion around Net Neutrality is very interesting, it simply does not exist anyway in Australia.

As Telstra refuses peering arrangements with other ISPs and CDNs, abusing it's market power to extract a "Telstra Tax" from every other Australian internet user .

https://blog.cloudflare.com/the-relative-cost-of-bandwidth-around-the-world/

In the analysis of the availability of various plans with Quotas, it fails to address that the smallest Telstra plan appears to be more expensive than an Unlimited plan from a competitor such as TPG. Essentially, the quota analysis is misleading with reference to the price.