Tze Internut …
Now that I’ve
explained the relative make up of the structure of Atamai, I can explain other
things a bit better. If you missed that explanation, look here:
This system only went live
today however, hence I had been depending on a Vodem stick up till now. Trying
to keep internet usage to under 100Mbytes per day does take some discipline –
no You Tube that’s for sure.
One clarification
about Atamai’s internet capability. The village is meant to be hooked up via
fibre optic cable internally (the so called “intranet”) and that will come at a
cost to the developer (ADL) and is included in the price of the section.
However Atamai doesn’t currently stipulate how it will connect to the internet.
That is to be determined by the village council (AVC).
The present story …
At present the village
is located in an area where marginal rural ADSL is available. This means ~2mbps
downloads and ~500kbps uploads during non-peak periods (per line). However because it is on the fringe of the service,
the ADSL modems here have to be occasionally reset, some days a lot more than
others. If you complain too much to telecom they will say:
“Technically you
shouldn’t be getting it, perhaps it is better if we cancel that service on your
lines so we don’t have to deal with your complaints.”
… to that Atamai has
no choice but to say …
“No, that’s ok, we’ll keep on resetting out
modems”.
A Chorus man cleaned out
some corroded wires in the exchange box lately and things have been better
however… you got to wonder sometimes about these guys who are quite willing to
charge you a huge price for a crap product!
There are about 7
lines coming into the entry of the village on the south-eastern side (the side
closest to the Motueka township), not all of which are currently utilised. This
is probably ok for the time being and should serve the village in its growth
phase, but the demand for bandwidth will quickly and surely increase as more
people come and live in the village – especially seeing that most people who
are seriously considering the move here are based in the IT or technology
industries (basically those who want to work remotely). Currently some of the
lines are shared, each over their own subnets - but in the future the ADSL
service might get lumped into an arbiter which could shuttle packets across an
aggregated number of ADSL lines. It’s not so simple however as the IP addresses
need to remain fixed for the sessions, which in essence might end up tying the
user to a particular line anyway. For now, just sharing the each of the lines
separately works well.
As an alternative, Atamai
has relatively good reception for Vodafone 3G mobile broadband. Where we are, the
signal strength is 2-3 bars out of 5, which actually is better than in the
some areas of the township which averages 1 bar. It isn’t 100% reliable however as sometimes 3G
goes missing and GPRS takes its place, a slow crawl. Vodafone has been
upgrading its network around these parts, so the recent outages might be
related to that upgrade. Mobile broadband is super expensive however with
Vodafone charging $25/Gig, ouch!
We live on the north-western
end of that Atamai hill. On this end we don’t get ADSL delivery on the phone
lines. So ADSL has to be piped in from the south-eastern end which is over linear 1-2km
of cabling (crossing several land ownership boundaries) hence not particularly
feasible economically. What the village has put in place however is a 5Ghz wireless
bridge/repeater units on the top of the hill, and wireless transceivers at the
south-eastern end (where the router and server are situated) and the north-western end
where the house is situated.
This creates
interesting problems of its own because the repeater on the hill needs power to
operate (ie. An active system rather than a passive one). In a true rural
situation this would mean solar energy harvesting and sizing of the batteries
to last several couldy days - a sizable expense. But in the case of Atamai’s
hill, there was conveniently a power junction box nearby that could be tapped
into. As the power requirements for the repeater box was too small to meter, an
application was made to the power lines company to have an unmetered electricity connection, which was granted (ie. Yuss FREE
POWER!!). The caveat however is that the normal lines fee is applicable and
will need to be met by the users of that link – ie. me :(. Fortunately, the land where the tower (ala
broom stick!) is located is owned by one of the Atamai investors so no problem
about that! Here is what it looks like:
The tower |
The box at the top where power is piped in. You can see two power over ethernet devices to power the repeater/bridge units, as well as a switch to connect them. |
You can only just see the cottage in the middle of the picture, it's hiding behind the tree - not the big barn looking thing further up. |
You can only just see the hangar in the middle of this picture |
Picture of what the transceiver unit looks like, quite a small thing, capable of 150Mbps up to 5km (ish), truly best of the best case - more like 2km line of sight in real life. |
The Future…
Eventually the AVC
could consider a satellite link, a microwave link or a fibre optic hook up – or
some aggregate of the lot including ADSL just so there is more redundancy in
the system. A bit overkill however, and it will boil down to setup and on going
costs.
Satellite is ok except
that it can be quite pricey, has long latencies, and not that robust during
some weather conditions. Microwave is perhaps not that bad but a repeating
tower is needed to get around one hill which is blocking line of sight to the
nearest node. Each tower costs about $15K (2 will be needed minimum), and then
there are bandwidth costs on top of that.
Fibre is an
interesting option. The closest national backbone fibre trunk is about $70K
away with line leasing costs there after of about $1.5K/month. This may sound
super expensive, but it would be highly reliable and speeds of 100Mbit/s may be
achievable (although leasing prices might vary depending on bandwidth
delivery). The capital cost is sizable but the advantages and future proofing
can’t be understated.
As a villager and a bit
of a tech geek, I get to be part of the process that stipulates which gets
chosen and how it will be implemented – sounds like fun. But we will have to
wait and see how things pan out over the next few years – it might be ADSL
until then.
Until next time ...
Great work. Thanks for your time and another brilliant article.
ReplyDeleteThank you! .. whoever you are :)
DeleteI had a long distance wifi connection when I lived near Murchison. 14km from town to a hilltop up the Matakitaki valley. Only about $1000 worth of kit and I had a repeater as well which ran on solar. A single panel with a small charge controller and good set of deep cycle batteries 300Ah kept it going for days. I ran it continuously for 5 months. Purchased everything at http://www.gowifi.co.nz/
ReplyDeleteThat ubiquiti gear uses very little power and will run on 12v (the range is 10v-26v or something like that).
Yes I buy my gear from gowifi as well, they are amazingly responsive and highly recommend them. I have since moved site (see http://ourecolife.blogspot.co.nz/2013/01/wundabah-wasser.html) and my internet has not changed to RF delivery via the Mt. Campbell tower. It's working amazingly well, for not that much monthly.
Delete