First, regulations prohibit speeds greater than 53k. Second, it is rare to get the 53k rate. According to a survey on "modemsite.com", "Of those getting 56k rates, 80-90% are getting 40k or higher. About 75% get rates between 44-49.3k. About 10% get rates of 50k or higher, and about 15% get rates between 34.6 - 38.6k. However, the throughput achieved by a substantial portion of the connections doesn't match the connect rate." Notice the first part of that quote "Of those getting 56k rates…" even though the modem may be a 56k modem, and the internet service provider (ISP) offers 56k connections, it is not uncommon for users not to get a 56k connection, but the older 33,600 connection. Unless the user has their modem software properly configured, the true connect speed may not be known. When connecting on a dialup line, the user may hear a series of tones and static-like sounds. These noises are the two modems negotiating a connection. Unless a connection log is saved, the user may not know their real connect speed and other relevant connection information.
Notice that above, the word "connection" is used, but connection speed is only one of many factors of how well a modem really works. Throughput, or the speed that the modem processes data, is a superior indication of modem performance. Modems typically offer the ability to compress some data, which may speed the loading of websites, and the transfer of compressible data.
Other factors influencing modem speed and throughput include the computer itself, the modem, the phone wires and lines, external causes of line noise, and the software used. Some older computers have problems with faster modem speeds, especially using external serial modems. If the computer has an older 16450 "UART" serial chip, it lacks enough of a buffer, or temporary storage, to properly handle modern modems. Newer computers have a 16550 or better "UART" which can handle higher speeds. Another factor is the condition and quality of the wire connecting the modem to the wall, and the interior phone wiring in the house. Having other phones or devices connected to the same phone line may degrade performance. Often the phone cord that comes with a new modem or computer is an "economy" grade that may lack proper insulation or contain inferior wires. Many of these poor quality cables are also subject to electrical interference. Some users have found that replacing the cord between the modem and the wall with a better quality cord can improve performance. It is also important to note here that while controversial, I believe that it is important to have the modem connected to a surge suppressor. While it is documented that a surge suppressor does slow the connection and throughput slightly, I believe that it is a necessary precaution for most modems. The only modems that I am aware of that specifically recommend not connecting to a surge suppressor is some Zoom models, as they contain internal protection.
The outside junction box on the house and the external telephone company phone line may also be a source of trouble. An old trick often used following a rain storm, if the modem has trouble staying connected, or is suddenly performing poorly, is to use a hair dryer to dry the wires in the junction box. Moisture can cause line noise and interference. On most outside junction boxes is a door marked for consumer access. In this door is a phone jack. Some users note their normal connection quality, and then reconnect the modem directly to the junction box jack, and again note the quality. If there is substantial improvement, then it is possible that the interior wiring is a culprit. If there is no significant improvement, then the interior wiring is likely ok
The brand and model of the modem is often a major influence on performance. Modemsite.com has a continuous survey where thousands of users have rated the quality of their modems and connections. There are some distinct differences indicated among the many models listed, which may indicate models to either consider or avoid. Generally, the less expensive winmodems, softmodems, or controlerless modems have good connection speeds, but inferior throughput, because they lack their own processor, and utilize the computer CPU to process data. Since the CPU is also often busy processing other data, performance may be slowed. Some tech support people at the ISP can objectively recommend models that have worked well on that system.
Another factor is the software and drivers used by the modem. The less expensive modems listed above often require updated drivers to improve performance. A user should periodically check the modem maker's website for revised software and updated drivers. Antivirus software, while vital, also slows throughput as it checks the incoming data stream for threats.
An easy way to improve the performance is to change the modem configuration and settings. Most ISPs will provide the user with help on entering recommended settings. There is also a variety of software to change registry settings that may help improve throughput. A check of any of the major download sites will quickly indicate a variety of such software, often under the "modem utilities" or "web accelerators" categories. While many such programs may provide some improvement, many others are useless. Read credible, independent third party reviews before paying for any such programs.
Many of us have become dependent on our computers for business, recreation, news, email, entertainment, and a variety of other uses. While the technology available to us advances, the threats to our computing are also increasing. Look at recent news events and their implications to our personal "Cyber Security". A secondary issue, which may be more of a security issue than many realize, is personal privacy.
Both of these products will detect spyware on the computer, with Ad-Aware offering broader detection and removal capabilities.
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