the NBN rolling out throughout our region and people enjoying faster
connections from their home to the Internet, it has highlighted the need for
faster connections throughout your home.

the Internet was first introduced in Australia on 24 June 1989, the speed was
such that it may have been quicker to drive to the library and borrow a book
rather than try and look up information on the Internet. The fastest dial-up
modem at the time allowed speeds of 9.6 kilobits per second (kbps). To put that
speed into perspective, to send a photo taken from a modern smartphone at
speeds of 9.6kbps would take close to three hours.

NBN speeds more than ten thousand times faster than the original dial-up
connections from 1989, the NBN highlights the need for other infrastructure to
be brought up to speed – particularly with a variety of mobile devices in the

September 1999, the 802.11b Wi-Fi standard was released and it was some time
after that when the idea of moving around your house carrying a (heavy)
notebook while still connected became a viable option. The maximum theoretical
speed of this standard was 11Mbps so it was still dramatically faster (200
times) than the dial-up modems at the time. By the time the first iPhone was
introduced in June 2007, it came with the ability to connect to 802.11b and
802.11g. The newer Wi-Fi standard had theoretical speeds of 54Mbps compared to
the common ADSL speed of 1.5Mbps (36 times faster). There are now a plethora of
Wi-Fi standards (a; b; g; ac; n – I need to write an article just on these
standards) with theoretical speeds of up to 780Mbps but this is the area where
people experience some dissatisfaction with their Internet connectivity. Take
the newest standard. 801.11ac has an upper speed limit of 780Mbps but can go as
low as 6.5Mbps. It uses the 5GHz frequency range.

are two main problems people experience. Firstly, they may have devices that are
not capable of the newer standards. The 801.11ac standard was released in
December 2013 so it wasn’t common in devices until well into 2014. Secondly,
and this is the most common problem, Wi-Fi is subject to a range of potential
obstructions. You are transmitting a very weak non-ionising radio signal. Your
device (PC; phone; TV; etc.) is receiving and transmitting the same signal. The
quoted approximate range for these devices is 35m BUT anything you put between
these two devices can absorb some of the signal and reduce the range and, most
importantly, the speed. Place a metallic object – such as a fridge or oven – in
the middle and much of your signal is absorbed. To varying degrees, walls;
people; appliances; furniture; etc. can all reduce the available signal. In an
increasingly crowded radio spectrum, other radio signals – particularly from
nearby Wi-Fi devices – can also interfere with the signal. In the past when our
Wi-Fi speed was 36 times faster than our Internet connection, we didn’t notice
some of the interference or a slower Wi-Fi speed. But today, when our maximum
Wi-Fi speed is only 7 times faster than our Internet connection, the range of
minor issues impacting Wi-Fi are suddenly major issues.

are solutions though. Firstly, Wi-Fi works best when there are no obstructions
between devices and there is no outside interference. So…living in a metal shed
that is built as a Faraday cage and having no internal walls would be the best
solution. Assuming that may be a little over the top for some of the readers of
this column (priorities folks) then there are alternatives. The best solution
is cabling. If you can cable to each individual device you want to use then you
will experience reliable speeds of 1,000Mbps. The next best alternative combines
Wi-Fi and cabling. Ensure that all of your devices are capable of the latest
standard and situate multiple Wi-Fi devices throughout your house all wired
back to the central NBN router. Lastly, if cabling is difficult in your
environment, you can use wireless repeaters. As the name suggests, wireless
repeaters take the original Wi-Fi signal and repeat the signal.

NBN speeds continue to increase over the years to come, these problems will be
further highlighted but I can guarantee you that there are many organisations
working on new standards to overcome these looming issues. One resident
complained to me that they needed a solution for their Wi-Fi as it worked
everywhere throughout the house – except the toilet. They didn’t like the
suggestion of not using their phone in the toilet! And that, my friends, is
what we call progress!

Mathew Dickerson

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