Wednesday, March 5, 2008

South Africa - How To Speed Up You Internet Surfing

So you've finally had enough of battling with that dodgy old dial-up connection and are now contemplating going broadband. Or your current broadband connection is not meeting your needs and/or is too expensive and it's time for a change.

The choice you need to make is between Iburst, HSDPA (Vodacom and MTN) or ADSL from Telkom, which can be quite a daunting decision for the technically non-inclined. HSDPA and Iburst are "long range" wireless options not to be confused with "short range" wifi, while ADSL needs a fixed telephone line. So here are a few pointers to help make that decision a little easier.

Connection speed
First you need to decide what Internet speed you need. Obviously the faster the better. Below are the theoretically "maximum" speeds on offer:

Iburst: Up to 1Mbps
HSDPA: Up to 1.8 Mbps. Drops to GPRS rates in non coverage areas.
ADSL: Up to 384 kbps, 512kbps, 1 Mbps and 4 Mbps (1024 kbps = 1Mbps)

In South Africa, however, the reality is that these maximum speeds are rarely achieved (if ever) because actual average speed achieved is dependent on factors such as time of day, location, supplier capacity, remote site being accessed and technical problems. For example, right now my current speed is averaging around 175 kbps on a 512 kbps ADSL link. Obviously the higher the maximum speed capability of your link, the higher the average speed you will get while surfing.

Price per bandwidth
Next you need to decide between the different packages on offer. All companies charge differently although, after installation, price essentially boils down to cost per Mbyte. With Telkom this price is also dependent on the speed of the ADSL link chosen, as well as the cost of your ISP (Internet service Provider). What you need to decide is how many Gigabytes (1024 Mbytes) you need per month and at what speed, and select a package that is appropriate for your needs.

As a comparison, I have listed below the comparative monthly costs for roughly the same packages (+- 3 Gigabytes of data) at speeds of 1 Mbps (or higher) as of 12th June 2007:

Iburst: R0.17/Mbyte/month (3500 Mbytes pro Classic package, no modem)

HSDPA: +- R0.20/Mbyte/month (2048 Mbytes in bundle rate from MTN/Vodacom)

ADSL: R0.21/Mbyte/month (3 Gigabytes Cap with 1Mbps line using Axxess as ISP at R125/month)

(Prices do not include once off costs such as routers/modems etc)

Although the Iburst option works out the cheapest at 1 Mbps (or greater), if you are happy with a 384 kbps line speed, then the ADSL cost reduces to +- R0.12/Mbyte i.e. you are sacrificing speed for price. On the other hand, if you need the faster speeds and are confident that the wireless coverage will be reliable in your area, then one of the wireless options may be the way to go.

Reliability
Unfortunately the reliability of each of the above connections is hard to predict and I have seen and heard of cases where all connection types have been unreliable and slow. This usually boils down to one of the following reasons:

Time of day: At certain times of the day, there will be more users online sharing the same resources, so overall speeds obtained will be lower than at other times.

Your location: Especially true for the wireless options as in certain locations, speed will be much better than in others. This is because the wireless signal coverage is affected by objects such as distance from the transmitter as well as buildings, weather, mountains etc between the transmitter and your router. For example, I have used HSDPA cards at the CTICC centre in Cape Town and got average speeds of only 270 kbps. While the coverage for all is increasing, ADSL is the most likely only choice for many areas because of Telkom's huge infrastructure. Iburst and HSDPA are mainly focused in major cities. It is however important to check the reliability of wireless coverage at your site before going ahead with using a wireless connection.

Technical problems: All the suppliers will experience technical problems from time to time and that invariably effects connection speed - unfortunately in South Africa this is far too common a problem at the moment.

Internet Needs
If you are planning to use the Internet while on the move using a laptop, for example, then Iburst and HSDPA are the only options available ADSL needs a fixed phone line.

However, if you will be accessing the Internet from one location then you have the option of using any of the three. Personally I prefer using a fixed ADSL line because, in my opinion (and Telkom technical problems and personal dislikes aside), a physical wired solution should always be more reliable than the wireless options. If you need wireless with ADSL, you always have the option of using wifi, which will give you short range wireless connectivity (+- 35 meters from the router with longer ranges possible using the right setup).

Also, the type of applications you will be running will influence your selection. If all you need is "reasonable" Internet speed for email and browsing, then 384 kbps from Telkom may be all you need. On the other hand, if you are downloading large files or need a fast connection between two offices, then you will need a faster connection.

My Preferences
Home/Business fixed location: ADSL from Telkom (Non Telkom Router) Roaming user with laptop: HSDPA from MTN

This article is adapted from one that first appeared on the ITRoadblog published by Precision Networks

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Home Automation Can Enhance Your Lifestyle

If you were a small child growing up in the 70s I am sure you remember watching the Jetsons on TV and thinking how cool it was to see Judy Jetson talk to her husband, George on a TV monitor while both of them were in different rooms of their space-aged home. Well hang on to your seat because the Jetsons way of life is no longer just a figment of someones creative imagination. That once spaced-aged technology is here and is quickly gaining popularity all over the world.

Let's face it, most of us live a fast-paced, hectic lifestyle where time is a precious commodity and anything that can save us time we welcome with open arms. Home automation is designed to do exactly that. It gives you the ability to integrate and activate household electronic components such as interior and exterior lighting, a security system, whole house audio and video, irrigation systems, thermostats, appliances, and cctv (just to name a few) all from a touch of a button.

Imagine waking up in the morning and from the moment your alarm goes off, lights automatically come on, the shades automatically adjust to the position of the sun outside, the coffeepot begins brewing downstairs, and your favorite jazz CD starts to play softly in your bathroom. All of this before your feet even touch the floor.

now you are ready to leave for work, you simply push a button that has been pre-programmed as "away" and your security system arms itself, the lights and audio system turn off, the thermostat adjusts to energy-saving mode and your irrigation system is set to water the lawn at 4pm.

Welcome to the world of home automation.

For added peace of mind, most home automation systems will allow you to access, change, and monitor your system from your telephone and the Web. Through special programming, you can elect to receive alerts from your telephone or through email informing you if the alarm has gone off, or the irrigation system failed to turn on, or when your children have arrived home from school. So if you have never considered home automation options for your home before, maybe now is the time.

From a security stand point and in a world where crime, burglary, and home invasions exists and will continue to exist, to have a home look lived in even when you are not at home, is priceless to say the least if it means protecting your number one asset your home and your family from such acts of violence.

With gas prices at an all time high with little to no relief in sight, more and more homeowners are looking for ways to save money on their bills to compensate for the pain they feel at the pump. Home automation systems with motorized shading solutions that adjust automatically based upon the position of the sun outside can help to conserve energy and as a result, helps reduce the amount of time your air conditioner turns on and stays on. This feature alone can translate into significant savings on your utility bills.

As our insatiable appetite for the latest, sleekest, and greatest technologies continues to grow, so too does the demand for people who install and maintain them. With so many system and/or product options to consider when selecting a home automation system, a certified electronic systems contractor (ESC) or more commonly, an electronic systems integrator, can make the time-consuming process of product selection and system evaluation a whole lot easier for you.

So where exactly do you find an ESC in your area? The best place to start would be to consult CEDIA (Custom Electronic design & Installation Association). Founded in 1989, this international trade association is made up of more than 3,500 members worldwide that specialize in the design and installation of integrated electronic systems for the home. CEDIA members are established businesses, possess credible qualifications, proven experience, and are insured.

Aside from the countless conveniences and time-saving benefits that come from a professionally installed home automation system, it's also an investment in your home and can substantially increase the value of your home as a result.

Curt Rothenberg is Founder of Accent Electronic Systems integrators, a low voltage electronic systems contractor located in southwest florida that offers home automation systems, custom theatres, audio, video, security, cctv, wireless networks and lighting control solutions for both residential and commercial applications. For more information on Home automation solutions please visit http://www.accentesi.com

This article may be copied or reprinted provided no changes are made to it's content and the complete author box is included.

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Wireless Networking - Do You Need It?

There has been so much hype about wireless networking that it is sometimes hard to get to the important question: do you need it? To determine whether your notebook computer needs to have wireless networking capabilities, you need to understand what it is first.

WLAN

WLAN stands for Wireless Local Area network or Wireless LAN. Wireless network cards use the IEEE 802.11 standard of wireless transmission. There are other wireless networking standards, such as Bluetooth, but the 802.11 standard is the preferred networking solution. The Wireless network interface was developed originally for interfacing among computers connected through a local area network, but it is now also being used for Voice over Internet Protocol (VoIP) and internet access, just like the standard Local Area network interface.

A Wireless Networking environment has no need for complicated wiring to accommodate data sharing and internet access. The wireless network uses one or more Wireless access Points or Wireless Routers to transmit the signal. An access point has an antenna and an Ethernet port, which must be connected to a broadband modem for internet connectivity. A Wireless router adds several more Ethernet ports to allow a combination of wired and wireless connections. The access point or router acts as the radio frequency transmitter and receiver (radio frequency electromagnetic waves are the medium through which data packets are sent and received). This access point interfaces with devices (computers, PDAs, IP Phones, and other access Points) which use 802.11 wireless adapters.

Wherever there is an 802.11 wireless access point, a wireless networking-capable device can access that network and, generally, the internet.

Do You Need Wireless networking in Your Notebook Computer?

Whether you need wireless networking depends entirely on you. Wireless networking capability is always a wonderful feature to have in a notebook computer, but there are scenarios where wireless networking is definitely necessary.

If you want to have a tidy office or home network, wireless networking is for you. Moreover, if there are many users in your local network or if the number of users is expected to increase, a wireless router is not limited by the number of Ethernet ports on the router. Please note, however, that a wireless network connection is not as reliable as traditional Ethernet connections, and wireless connections are susceptible to radio wave and electromagnetic interference.

If you are a freelancer, a reporter, or in another position where you frequently travel, Wireless networking is invaluable. Wireless networking is the most widely used form of public internet access all over the world. With a wireless networking card, you are guaranteed an internet connection, as long as you can find a wireless hotspot.

For interfacing with personal devices like PDAs and cellular phones, Bluetooth is a more common option, but Wireless networking is absolutely necessary for wireless internet connections.

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