Selasa, 31 Agustus 2010

How To Choose a Wireless Modem

connects various computers that have wireless accessibility or connectivity into one single network.  This device then connects all the computers within its network to another entirely different network like the Internet.  When choosing the wireless modem to get you connected, there are a multitude of things that you will definitely have to consider prior to hunkering down on one.  Here are some these things.
  • Determine your needs.  Evaluate your internet connection.  Are you using DSL or Cable?  Are you using cellular technology like CDMA, GPRS, or 3G?  Knowing what you will be using to connect to the Internet will determine what type of wireless modem you need.  If you have a DSL or Cable connection, then you will simply need a wireless router.  If you are going to be connected using cellular technology, then you will need a specialized wireless modem for it.  This type of modem will be a small device that will be integrated with a SIM card for the connection.  Some laptops already have this type of modem integrated already.  Since wireless routers are pretty common, let’s assume that you will be using cellular technology.
  • Know the network service.  CDMA, GPRS, CDPD, and 3G are just some of the wireless networks that most wireless services will be offering.  3G is probably the fastest.  Now, you will need to know the type of network service or technology used in order to know what kind of wireless modem you will be getting.  Most modems are specific to one technology.  For instance, CDMA modems will not be able to connect to 3G services and vice versa.  So, before purchasing the modem, make sure to check with your carrier to figure out what type of modem you will use.  If in doubt, there are multi-tech modem models available that basically allow you to use any type of technology or wireless service with one single device.  The only drawback is that this tends to be substantially more expensive.
  • Go with security.  Wireless networks are considered flawed when it comes to security.  When choosing a modem, make sure that it comes with the much needed security features like WEP and WPA.  These are basically encryptions that will prevent hacking over the air.
  • Go with a modem with Wi-Fi access.  Regardless of the technology used to connect the modem to the carrier, make sure that the back end supports traditional Wi-Fi accessibility.  Remember, laptops and portable devices will want to connect to this modem and if the modem does not allow that on the back end, then the modem will more likely be useless.  If you do decide on one without Wi-Fi, then consider connecting the modem to a Wi-Fi router for the back end connectivity.
  • Brand is key.  It is critical to always be brand conscious when choosing these kinds of devices.  Never ever go with the cheaper brands made in China, India, or Malaysia.  They may be more appealing due to its price but it will expose you to all types of risks and may not even work as desired.  Going with the safer brands such as Linksys, D-Link, Cisco, Nokia, and the like is advisable. 
Again, like all purchases, never purchase a modem before scouting out all the other stores in the area first.  Make sure to get the best deal possible.  Also, never discount the importance of research.  If you see a model that catches your fancy, make sure to look for user-reviews online prior to making the move.

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