You can follow the author of this article on his Twitter @zimisfit. His also blogs on www.misfit.co.zw.
First, the basics: VSAT is an acronym that stands for Very-Small-Aperture Terminal. What that means in layman terms is a reliable satellite method of sending and receiving data. VSAT internet in Zimbabwe typically means a 1.2 meter satellite dish, for a home or office user, with an LNB for receiving information (similar to how Dstv works) and a BUC that facilitates the uplink.
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Before fiber came to prominence in Zimbabwe this year, VSAT was how all the bandwidth in Zimbabwe was landed by Internet Access Providers’s . This was done with much larger scale equipment than I mentioned above, think the mazoe earth station if you have seen it. Satellite bandwidth is much more expensive than fiber bandwidth, because of the costs associated with launching and maintaining a satellite in space. The change from satellite bandwidth to fibre is the main reason we have seen Internet connectivity prices come down significantly.
VSAT however is still an option for the home user in Zimbabwe. There are some compelling reasons to consider VSAT if you are in the market for broadband at your office or home. And here they are:
If you have recently looked at WiMax, ADSL or even fiber direct to your office, and have found yourself in a “dead zone” or staring at a fibre installation quote north of US $15 000 (yes I’m looking at you Helensvale and Umwindsidale residents!) you should get a quote for a VSAT service.
VSAT coverage in Zimbabwe is anywhere. You can literally get service over 100% of the country. In some circumstances you may find a pesky tree or building in your line of sight, but should these obstacles not be of the movable kind you can usually get service from another satellite with a different elevation or point direction.
VSAT Service is point to point from the HUB (the nerve center at your provider) that provides the service, to your terminal. The nature of this connection makes interception of communication very difficult for a would be hacker.
Most of the services originate from HUBS in South Africa, UK or Europe. If you are using one of these services, the only instance your internet traffic hits Zimbabwe if you are accessing, say, Hotmail, is the one into your VSAT equipment at your premises. Security on your local area network is of course a completely separate issue.
Unlike terrestrial links (the fibre, WiMax and ADSL) that have several points of “vulnerability” like base stations or points of presence (POPs) that need power, or fiber cables that DON’T need a pick through them, your VSAT service will run as long as you can power it.
Due to a combination of the factors above, VSAT is generally a more stable option than the terrestrial cousins. This can be argued, but in my experience with ADSL WiMax and VSAT at home, the VSAT has uptime of 98% compared with 90% for WiMax and 92% for ADSL. These numbers may sound high to you but consider 98% uptime still means about 176 hours of down time a year. And 90% would mean 31 full days of downtime a year!
Before you rush out to buy a VSAT, there is a flip side to this coin! The following reasons should also be taken into account before taking the plunge.
As I mentioned above, VSAT bandwidth is not cheap and is often quite heavily contended (shared amongst a number of customers by the ISP) to make the service look more attractive. The equipment and installation should be about US $1,600 and the services generally start from about US $150 a month for a very highly contended service, or a very low internet traffic limit. You can also get large uncontended services for thousands of dollars a month.
Due to the round trip of tens of thousands of kilometers that your little data packets perform from your computer to the satellite in space, to the hub at the provider’s premises and back, the gap between your click and your data arriving is significant. In technical terms if you ping an overseas server your latency is around 1,000 milliseconds on VSAT compared to just around 300 milliseconds on fiber. This of course varies depending on a few factors, like location of the hub and the number of hops, but allow me to generalize! This latency becomes a big factor if you like online gaming, or are using voice or video chat.
This one is obvious, look at a WiMax unit or ADSL modem, now look at a satellite dish. If space is limited or you don’t want an unsightly dish in your garden or on your house, VSAT is not for you.
Bang for buck
What I mean by this is most providers here are offering deals like free browsing after hours, or no limits on local content regardless of time. Or even that fact that locally hosted content is much faster over a terrestrial link. At the moment most VSAT deals are not inclusive of these kinds of perks, hopefully they will be included as the market becomes more competitive.
One of the big talking points with VSATservices is the legality. The provider of the service needs to pay license fees to the telecoms regulator POTRAZ for the service to be considered legal.
The only definitive way to ascertain this would be to call up POTRAZ, and enquire about the service you are considering installing. Don’t gamble with unlicensed solutions!
13 thoughts on “What to consider when buying a VSAT based internet service in Zimbabwe”
great article! about a month ago, i was considering getting a VSAT connection… a friend of mine was selling his iway VSAT equipment and moving to fibre…so i thought i’d look into buying it and using it as an alternate connection to ADSL (which has been a little bit unreliable lately). i had contacted ZOL to find out if there would be any additional costs above the usual internet subscription with my own equipment. to my surprise, i was told that i would have to buy new equipment if i chose to move to ZOL….also i was told that free off-peak 7pm-7am does not apply. i havent had time to follow up with the other ISP’s… but just be wary about the service provider you choose when going with VSAT…ask lots of questions and dont assume anything.
kthaker, buying new VSAT equipment was a bit unfair on your part, email
me on firstname.lastname@example.org so that i can quote you what we offer. value
for money service
The equipment thing is rather common, the reason being different frequencies of the buc and lnb, also most providers network lock their modems, this is the most expensive part of the kit so the provider would rather sell a completely new unit and be sure the wiring and everything else is intact. Yea unfortunately the free usage thing is something that will only happen once there is enough competition in the space to drive it! Thanks for the positive feedback
Please bear in mind Potraz had talked about VSAT hubbing in Zimbabwe not sure if its now compulsory.
The article is very informative and good.Keep it up.
True, true, very informative..
@pondo, how i understand is that you are supposed to Hub within Zim, if you default on this there is a penalty/fee. 2 of the licensed solutions i know of pay this fee.
kthaker, buying new VSAT equipment was a bit unfair on your part, email me on email@example.com so that i can quote you what we offer. value for money service
Very well researched and well written! Hope to see more articles of such caliber. You will also do well to point out the 2 main types of VSAT Services in Zim viz C and KU Band.
With the agressive rollout of Fiber in most towns and cities in Zim VSAT will soon be a choice for only the remotest of sites.
FYI only Africom and Econet (Gigatel of late) are the private operators with fully compliant in Zimbabwe…
“fully compliant VSAT hubs”
Thanks for the feedback! I wanted to focus on the domestic/SOHO user, so left out C band. IMHO with the footprints that KU has over Zim at the moment, and the speeds its capable of (13mb/s down!!) and the variable power leveling for weather (one of the reasons i didn’t get into rain fade) i feel C band really is only for the highest level customer. The hardware price and lessening of impact advantage with the improvement of KU service means that its not in most peoples equations. Thank you for pointing it out though, i really should have made the differentiation! With regards to the IAP’s that are running licensed solutions, I’m lead to believe there are a couple of others too, but still recommend that the end user check with POTRAZ for 100% peace of mind.
Indeed Ku-Band service in Zim has improved drastically since the pre-2010 era. FACT: Zim VSAT market is shifting and transforming virtually overnight. Players in this market need to get a quick raincheck because someone is busy moving the cheese.
The VSAT user of the near future in Zim might have an interestingly different profile from what we are seeing now.
What is your email add. Zimisfit?
great one techzim
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