If you are shopping for a wireless internet router, you have likely come across the dual band router, and have heard how it eliminates interference and improves connectivity. The question you may be asking yourself is: do I need a dual band router?
What is a Dual Band Router, and How Does a Dual Band Router Work?
Dual band technology utilizes two band frequencies, the commonly used 2.4GHz frequency and a less common 5GHz frequency. In areas that are crowded with 2.4GHz signals from competing routers and/or other cordless devices, interference often occurs. In this situation, a dual band router seamlessly switches from 2.4GHz to 5GHz and avoids the interference.
Check Your Area for Competing Signals
First, check the frequency of your home devices to see if they use 2.4GHz frequency. Cordless phones, microwaves and baby monitors are among the most common devices that can interfere with your wireless signal. If the devices you have in your home use the 2.4GHz signal, they may likely be affecting your signal strength. Be sure to check them though, since many do not use 2.4GHz. In addition, microwaves can only cause trouble while they are cooking. If you find only one device using the same 2.4GHz frequency, turn it on and off, walk around the house with it and check to see if it disrupts your connection. Having the same frequency makes interference possible, but it may not affect your signal strength enough to be of any concern.
Consider Your Wireless Environment
What is more important than the signals coming from within your home, are the signals coming from outside your home. If you live in an area that is crowded with 2.4GHz signals, such as an apartment complex with a number of neighboring routers and cordless devices, you will probably be better off with a dual band router. This is especially true if you have already been experiencing signal issues such as under-performing signal strength, sudden drop in signal strength, or disconnect. In addition, if you stream video to your television or participate in online gameing, you should purchase a dual band router to insure a seamless connection throughout your activity.
You do not need a dual band router if you live in a suburban type housing area or off a country road, and have no 2.4GHz devices in your home. If you have been using a single band router and have no complaints, you most likely do not need to shell out the extra cash for dual band.
A Few Things to Keep in Mind
Dual band technology will not fix connection problems that result from physical obstructions or distance issues; that is to say, dual band does not improve range. Also, not all computers and devices support dual band. While they are compatible, using the 2.4GHz frequency, they cannot take advantage of the extra 5GHz frequency and are subject to the same interference issues. Lastly, 2.4GHz was once the new and free frequency that 5GHz is today. In time, 5GHz will likely become equally crowded as dual band popularity grows.
