Saturday, April 19, 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

Yoga Cl Farmington Hills Michigan

 

Health Problems In Cats

It may come as a surprise, if you're a new cat owner, that many health problems may befall your feline friend. Some problems are easily preventable, while others are hereditary.

Hairballs

Hairballs are among the most common of cat health problems. Cats groom themselves almost constantly, and swallow the loose hair that comes off their tongues. Occasionally, the hair gathers into a ball and lodges in the cat's digestive tract instead of passing on through the body. If your cat starts coughing and hacking, he probably has a hairball. While the end product is unpleasant for the owner, most cats don't have a problem dislodging hairballs.

However, hairballs can occasionally pass into a cat's intestines and cause a blockage. This can be a life-threatening problem. There are a few signs to look for to see if your cat's hairball is dangerous. If your cat is constipated, off his feed, or is lethargic with a dull coat, then he could have a serious blockage. A vet exam is definitely in order.

To prevent hairballs, groom your cat frequently to remove loose hair. In addition, feed your cat food that helps control hairballs.

Worms

For many cats, worms are a recurring problem. Roundworms, tapeworms, and hookworms most commonly infect cats. Cats can occasionally develop heartworms, as well. If your cat seems unable to gain weight, is infested with fleas, or has white specks that look like grains of rice in his stools, take him to the veterinarian for worm testing.

Worms are easily cured with a few doses of medication, but if left untreated, they can be fatal.

Urinary Tract Infections

Urinary tract infections are another common health problem in cats. This infection is particularly common in unneutered male cats, although female cats can also develop this problem. If your cat suddenly stops using the litter box, a urinary tract infection is suspect. If your cat's urine smells strong, again a urinary tract infection may be the cause. These infections need to be treated by a veterinarian. Ask about cat foods that reduce the likelihood of another infection.

Feline Infectious Peritonitis (FIP)

FIP is caused by a mutation of the corona virus. According to some experts, cats living in multi-cat environments tend to test positive for enteric corona virus. Cats can live with that virus remaining quietly in the intestines with no sign of disease for their entire lifetime. In other cases, probably a genetic pre-disposition, the virus mutates into FIP.

Once a cat has contracted FIP, it will display symptoms of a mild upper respiratory infection: sneezing, watery eyes, and nasal discharge. It may also have diarrhea, weight loss and lethargy. Most cats fully recover from this primary infection, although some may become virus carriers. A small percentage of exposed cats develop lethal FIP weeks or even years after the primary infection.

Feline Immunodeficiency Virus

FIV, or cat AIDS, is not always fatal. FIV decreases the ability of the cat's immune system to fight infections. Cats with FIV may remain free of symptoms for years. It is when the cat contracts other illnesses in the chronic stage of FIV infection that FIV is first suspected. This long list of illnesses includes oral-cavity infections, upper-respiratory infections, weight loss, ear infections, kidney disease, and many others. Although there is, as yet, no vaccine, all cats should be tested for the virus. The virus is transmitted through saliva, usually when a cat is bitten in a cat fight.

Feline Leukemia Virus

FLV was, until recently, the most common fatal disease of cats. But with a vaccine now available, the number of cases is dwindling. Although the name leukemia means cancer of the white blood cells, this is only 1 of the many diseases associated with this virus, such as other types of cancer, anemia, arthritis and respiratory infections. FLV is preventable if the cat is immunized before being exposed to the virus. Although the disease is not always immediately fatal, cats with FLV rarely have a long life expectancy. NEVER bring other cats into your household when you have a cat with FLV.

Lyme Disease

If your cat spends time outdoors, you should check him regularly for ticks. If you find a tick on your cat's body and he has been lethargic and acts as if he is in pain, ask your vet to test for Lyme Disease. This disease is transmitted to people and animals by deer ticks.

Some cats may show subtle symptoms while others may show none -- symptoms are hard to recognize and often may be confused with other illnesses or old age. Be observant of your pet's behavior. It is the only way to know if your pet has contracted Lyme disease if no tick was found. Some symptoms of Feline Lyme Disease include:

(a) lethargy,
(b) reluctance to jump or climb stairs,
(c) limping, or reluctance to put weight on a paw,
(d) loss of appetite.

The key to dealing with Feline Lyme Disease is prevention and early diagnosis and treatment. You should reduce the tick population around your home with simple landscape changes and spraying.

Good Health Care

Taking your cat for a regular check-up with the vet, and keeping all vaccinations on schedule will help assure your cat a long and healthy life. Prevention is the first line of defense for most feline illnesses.

Many owners keep their cats indoors to protect them from cars, from cat fights which may expose them to deadly viruses, from ticks, and other hazards.

Outdoor cats will enjoy greater freedom, but require a watchful eye, loving attention to their health status, and regular visits to the veterinarian.

Visit New Cat to learn more. Copyright 2005 Ron King. Ron King is a full-time researcher, writer, and web developer. This article may be reprinted if the resource box is left intact.

Music For Yoga Free Download Mp3

About me

  • I'm 34334
  • From
My profile

Archives

Powered by Blogger
and Blogger Templates