Ques. I have a requirement of using my Airtel home broadband connection through a wi-fi router, and after going through all my internet research I have short-listed two products, viz., DIR-605L and DIR-615. And in spite of writing to firstname.lastname@example.org, I have NOT received any response, since near to a week now. And even the customer care people are not having full information with them. So you are my last resort, please help me to choose between them.If you can answer my following questions(simply copy an paste the whole matter and type your answer after each point, in the same sequence) it would be a great help:
1) My operating system is Windows XP service pack 2, is this compatible with both routers mentioned above (C-Net reviews mentioned service pack 3)? Please confirm.
2) Are both routers N-router (as in G-type or N-type)?
3)a. One specification mentioned in C-Net for DIR-615 is, 'Full Duplex Capability', what does this mean? 3)b. My room (where I'll be placing the router) is below the terrace, and alongside my room is a balcony, towards the roadside (and above is the terrace). I am expecting to get the wi-fi coverage on terrace as well. So (roughly speaking) is the feature 'Full Duplex Capability' usefull for this purpose?
3)c. Is this feature not available in DIR-605L?
4)a. For DIR-605L the antennas are 5dBi and for DIR-615 the antennas are 2 dBi; please confirm.
4)b. What does dBi mean? Is it like higher the better (in what terms)?
5) So finally, for my use in the floor above, 5dBi of DIR-605L would be better or 'Full Duplex Capability' of DIR-615 would perform well (give me a rough idea)?
Expecting a positive and helpfull reply,If there's a way I can directly call you, please let me know.Thanking you!Regards,Saurabh Kesharwani.
Ans. 1.Yes, the internet will work fine on Window XP service pack 2 with both the routers.
2. Yes both the routers are 802.11n and support speeds upto 300mbps.(But does your computer's network interface card support 802.11n?? To enjoy these speeds your computer should also support 802.11n!)
(b).A half-duplex (HDX) system provides communication in both directions, but only one direction at a time (not simultaneously). A full-duplex (FDX), or sometimes double-duplex system, allows communication in both directions, and, unlike half-duplex, allows this to happen simultaneously.
(c)This feature is present in most new routers in the market including DIR-605L
(b).The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity (usually power or intensity) relative to a specified or implied reference level. In this context it is the gain of the antennas. In electronics, gain is a measure of the ability of a circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output.
Higher the gain of the antenna more will be its range. If the range of your wireless router is good then you will get good speeds at greater distances.
(5) DIR-605L would be a better choice because of its bigger sized and higher gain antennas which will give you a longer WiFi range.