Internet Connection Information
What is Each Internet Connection Type?
ADSL1: Rural broadband
ADSL2+: Urban Broadband
VDSL: More efficient (faster)broadband
Cable: Only Vodafone, Wellington and Auckland
Fibre: Available where UFB has been installed. There are a lot of different speeds available, with prices increasing in relation to the speed being offered.
Fixed Wireless This is where you are supplied with a modem/router that provides all your broadband needs using a SIM card inside the modem to link you to the closest cell-tower.
Satellite: Available everywhere. Limited ISPs offer this.
RBI: Rural Broadband Initiative (the UFB of Rural), all upgraded technologies in the rural network as a result of the government funding. Includes ADSL, VDSL and Fixed Wireless. Refer to Rural reports for our reported results.
ADSL and VDSL Broadband explained
DSL (Digital Subscriber Line) is a technology that enables Broadband over a typical telephone line (copper). It does this using a mathematical sharing technique for signals over a large number of modems, it has various names for the peak speeds available, ADSL1 ADSL2+ and VDSL - for more info ask google. The maximum possible speeds can only be achieved if there is no electrical interference, your connections are in good order and your Wifi is close and up to date (or you do not use Wifi).
Fibre and Cable Broadband explained
Advertised speeds may be available with these technologies when downloading from the core network, but only if all planets align. The actual speed from the ISP is dependent on local congestion, overheads and backhaul congestion and the speed settings given you by your supplier;
- Each area (often a street or suburb) has a single service (Fibre or Cable), and the speed being sold is the total speed available for all subscribers in that area, hence if someone else uses the line at the same time, then the speed can be slower to allow usage by other users. With Fibre the speed is unlimited from your home to the exchange where it meets the OLT, which is a device to share capacity across many fibres, often up to 64 connections. With Cable, you share the conection to the nearest cabinet, often with up to 100 others, this may impact you during peak usage periods of 6-11pm.
- Fibre & Cable are both able to be delivered at the advertised speed. Some Local Fibre Companies (wholesalers) still sell to ISPs a sub-standard service that cannot reach the advertised speed, ask your ISP.
- The capacity up and down the country is limited, and congestion may impact on your ability to get a top speed. This depends on the supplier, who may or may not have sufficient capacity for most of the time. TrueNet has already started seeing this congestion on Fibre with some ISPs, a sudden market change could cause severe congestion, just like Cable. Cable congestion suddenly developed when NetFlix was offered, but after a very large investment, Vodafone resolved this problem on 2nd October 2015.
- Speed allocation can be just wrong on Fibre and Cable. The speed you get is a software setting in the network and if your speed is allocated incorrectly you will get the speed allocated. We see many Panelists who say purchase 100Mb/s who are allocated speeds like 50Mb/s, 200Mb/s and unlimited GigE service
There are two satellite wholesalers, each offering services on different satellites, speeds depend on the height of the satellite above the horizon, weather and ISP settings. Satellites are a very long way away, so it takes time for a signal to got to the satellite and return, this is called Latency which has little impact on speed but can be destructive on website downloads. Only ISP selection and ISP settings can improve performance. Smart technology that reduces the overheads of packets during the satellite hop improves website performance to that of ADSL.
- Satellites are a shared resource, so traffic is high in busy periods, using the service outside the busy period usually proves a reliable service.