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wifi

[:en]Connect to WiFi on campus[:]

Thursday, January 27th, 2022

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The Wi-Fi network used to connect to the internet access is called eduRoam. Here we explain what it is, how to register and why it is necessary.

What is eduRoam?

eduRoam (education roaming) is the secure, world-wide roaming access service developed for the international research and education community. eduRoam allows students, researchers and staff from participating institutions to obtain internet connectivity across campus and when visiting other participating institutions by simply opening their laptop.

To connect to eduRoam and start using Wi-Fi on campus follow these steps.

 

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[:en]WiFi access on campus[:af]WiFi-toegang op kampus[:]

Tuesday, November 17th, 2020

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Since the beginning of this year MatiesWiFi is no longer be available and all users will be required to use eduroam for wireless connections. 

The reason for this change is the necessity to move away from a less secure WiFi option (MatiesWiFi) to a more secure one where your data and identity are encrypted and protected (eduroam)

How to access eduroam if your device is already registered

If your device is already registered on SU WiFi network, namely MatiesWiFi or Secure, it will be able to connect to eduroam automatically. Just use your full username (xxxx@sun.ac.za ) and password to log in. Instead of MatiesWiFi or Secure select the eduroam network on your device’s WiFi settings. In order to access the internet via eduroam, you will still need to open your Inetkey.

Further instructions are available here.

How to access eduroam if your device is not registered

If your device is not registered for the SU WiFi network please use Registerme to do so. Each device must be registered on its own and you can register up to 5 devices on US WiFi network.

Take note that these instructions are only applicable if you want to register your device on the eduroam WiFi network. For other network registration please log a request on our ICT Partner Portal

More information on WiFi connectivity.

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Sedert die begin van die jaar is MatiesWiFi nie meer op kampus beskikbaar nie en sal alle gebruikers moet oorskakel na eduroam.  

Die motivering agter die verandering is om vir sekuriteitsredes weg te beweeg van `n minder veilige WiFi-opsie (MatiesWiFi) na WiFi waar jou data en identiteit enkripteer en beveilig word (eduroam).

Toegang tot eduroam as jou toestel geregistreer is

Indien jou toestel alreeds op US WiFi netwerk vir MatiesWiFi of Secure geregistreer is, sal dit outomaties aan eduroam kan koppel. Gebruik jou volle gebruikersnaam (xxxx@sun.ac.za ) en wagwoord om aan te teken. In plaas van MatiesWiFi of Secure kies net die Eduroam netwerk op jou toestel se WiFi-verstellings. Indien jy toegang tot die internet via eduroam benodig, moet jy steeds Inetkey oopmaak.

Volledige instruksies is hier beskikbaar.

Toegang tot eduroam as jou toestel nie geregistreer is nie

Indien jou toestel nie geregistreer is vir die US WiFi-netwerk nie, gebruik asb. Registerme om te registreer. Elke toestel moet apart geregistreer word, maar jy kan tot 5 toestelle op die US WiFi-netwerk registreer.

Neem kennis dat hierdie aanwysings net van toepassing is vir die registrasie van jou toestel op die eduroam WiFi-netwerk. Enige ander netwerkregistrasies kan op ons ICT Partner Portal aangevra word. 

Meer inligting oor WiFi op kampus.

 

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WiGig – new generation WiFi?WiGig – nuwe generasie WiFi?

Friday, September 20th, 2013

Just when we got used to all the pros and cons of WiFi, a new contender we don’t know much about yet, appears on the horizon. Let’s look at the strengths and weaknesses of  WiGig.

WiGig is another wireless standard just like WiFi, but in spite of this there are some significant differences.

WiGig’s  range is considerably closer than WiFi, won’t easily reach past 10 metres and doesn’t particularly like to go through walls. So why would you want to use it?  

Image credit: WiGig Alliance

WiGig is fast, faster than the Wifi we’re used to. It operates on a much higher frequency (60GHz ) than traditional bandwidths and mobile signals and can deliver speeds of up to 7Gbps. lewer. However, as soon as your devices are further away, speed performance decreases rapidly.

Experts therefore recommend that WiGig be used for home entertainment systems, tablets and home pcs and in addition to your existing WiFi connection.  

If energy saving is important to you, you can consider WiGig with a clear conscience as it’s been designed as a low energy alternative. It also claims to use five times less energy than WiFi and radio signals are set up to avoid congestion and send signals directly to it’s goal. 

WiGig was established by the Wireless Gigabit Alliance, which included members like Broadcom, Cisco, Intel, Microsoft, Dell, Nokia, Toshiba, Qualcomm, NEC, Panasonic and other large corporations. At the moment the WiGig standard is currently going through various certification programmes, but according to estimations these will be completed by the end of 2013.

[BRONNE: www.techradar.com & www.computerweekly.com]

Net toe ons gewoond geraak het aan WiFi en vrede gemaak het met sy nukke en grille, verskyn daar `n nuwe speler op die veld. Een waarvan ons tot nou toe nie veel van geweet het nie. Kom ons kyk wat is WiGig en vergelyk sy sterk- en swakpunte. 

WiGig is bloot nog `n draadlose (wireless) standaard soos WiFi, daar is tog `n paar duidelike verskille. 

WiGig se reikwydte is aansienlik korter as WiFi, strek nie maklik verder as 10 meter nie en sukkel om deur mure `n sein te stuur. So, hoekom sal `n mens dit wil gebruik? 

Image credit: WiGig Alliance

WiGig is vinnig, vinniger as die Wifi waaraan ons gewoond is. Dit werk op ‘n veel hoër frekwensie (60GHz ) as die tradisionele bandwydtes en mobiele seine soos 3G kan blykbaar tot 7 Gbps lewer. Sodra jou toestelle egter verder weg is, verminder die spoed bitter vining.

Kenners beveel dus aan dat WiGig gebruik moet word vir tuisvermaak-toestelle, tablette en tuisrekenaars en dat jy dit gebruik as aanvulling tot jou reeds bestaande WiFi-konneksie. 

As die besparing van energie vir jou belangrik is, kan jy WiGig met `n skoon gewete oorweeg aangesien dit ontwerp is as `n lae energie alternatief en aanspraak daarop maak dat dit vyf keer minder energie verbruik as WiFi. Radioseine word geoptimiseer om die beste resultate te gee, oorlading te verminder en die sein direk te stuur waarheen dit moet gaan.

WiGig het ontstaan by die Wireless Gigabit Alliance wat lede soos Broadcom, Cisco, Intel, Microsoft, Dell, Nokia, Toshiba, Qualcomm, NEC, Panasonic en ander groot maatskappye insluit. Op die oomblik gaan dié standaard eers deur verskeie sertifiseringsprogramme, maar volgens beraming sal dit teen einde 2013 afgehandel wees. 

[BRONNE: www.techradar.com & www.computerweekly.com]

How to save battery life on you cell phoneHoe om jou foonbattery langer te laat hou

Friday, October 26th, 2012

In a previous post we gave you some tips on saving your cell phone’s battery life and received such a positive response, we decided to continue with a follow-up.

The demand and expectation to be available and connected at all times, is constantly increasing. However, few things are as frustrating as having to make an important call or send an e-mail and our phone suddenly dies on you.

A dead cell phone battery is inevitable, but you can take small measures to ensure that it does last a little bit longer.

1. Wi-fi, 3G and Bluetooth

If any of these functions are activated by default they will constantly try to connect to any available service or device in the area. If you do need to be connected all the time, disable them and connect when needed.

2. Back light

Do you really need a bright back light on your screen in the middle of the day? Your phone needs energy to generate the light and the brighter the screen, the more battery life you sacrifice. Rather set the light less bright.

3. Apps

Sure, it’s very cool having all the latest apps giving you all sorts of information. Just keep in mind that apps need a lot of power to run.Power you might need to make an important call.

4. GPS

Using your GPS for checking in on Twitter or other social networks may be handy, but it will make a huge dent in your battery life. And when your GPS fails and you get lost, how will you make that call?

5. Alerts

Are you one of those forgetful people who has to reminded of every appointment and task on your list every hour? Notifications on cell phones are very handy, but putting your phone on vibrate and receiving regular notifications take up a substantial amount of power.

(SOURCE: http://www.makeuseof.com)

 

 In `n vorige skrywe het ons vir julle voorstelle gegee oor hoe om jou selfoon se battery langer te laat hou. Na aanleiding van die positiewe reaksie wat ons gekry het, het ons besluit om nog `n paar idees met julle te deel.

Die verwagting om altyd aanlyn en beskikbaar te wees word by die dag groter en groter. Min dinge is egter so frustrerend soos `n pap battery wanneer jy `n belangrike oproep moet maak of e-pos moet stuur.

`n Pap battery is onvermydellik, maar daar is klein maatreëls wat jy kan tref om daardie ekstra bietjie lewe uit jou foonbattery te kry.

1. Wi-fi, 3G en Bluetooth

Indien enige van bogenoemde funksies voortdurend geaktiveer is, sal jou foon deurlopend probeer om aan die beskikbare dienste in jou omgewng te verbind. As jy nie die hele tyd toegang hoef te hê tot hierdie dienste nie, sit dit eerder af en verbind daaraan soos nodig.

2. Agtergrondlig

Het jy regtig in die middel van die dag `n helder bron van lig agter op jou skerm nodig?  Jou foon het krag nodig om hierdie lig te genereer en hoe helderder die lig vir jou skerm, hoe meer batterykrag offer jy op. Stel eerder die lig dowwer as jy wil krag spaar.

3. Toepassing

Goed, dis lekker om die nuutste toepassings te hê wat vir jou allerhande (soms onnodige) inligting kan gee. Hou net, jou foon het krag nodig om al tien toepassings te laat loop in die agtergrond. En dis krag wat jy dalk later nodig gaan hê as jy `n dringende oproep moet maak.

4. GPS

Om jou GPS te gebruik om op Twitter te wys waar presies jy tans is, mag handig wees, maar dit gaan ook jou batterykrag opsuig. En as jou batterykrag op is en jy verdwaal is jy ook sonder GPS!

5. Alarms en kennisgewings

Is jy geneig om afsprake en take te vergeet? En jou selfoon is so gestel dat dit jou op gereelde basis daaraan herinner? Kennisgewings en alarms op selfone is baie handig, maar as jy jou foon terselfdertyd op vibreer sit, ontneem dit jou van batterykrag.

(SOURCE: http://www.makeuseof.com)