Appendix; Technical Evaluation Recommendations - NETGEAR WNDR4720 Review Manual

Wifi storage router with 2tb hard drive

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Appendix

1. Wi-Fi Speed and Range

The NETGEAR CENTRIA router's high transmit power and sensitive antennas fine-tuned for each

frequency band provide superior range in comparison to competing routers. Please note WiFi speed and

range always depend on the WiFi adapters in use and the processing power of the network device. In

the case of CENTRIA, as the router is capable of multiple sessions, the computer can become the

bottleneck when testing with only one computer. Also note that it is best to run the Iperf or IxChariot

test programs using multiple sessions instead of single sessions.



Highest speed is reached with Intel 6300 WiFi cards integrated in notebooks (found in selected

Dell and HP notebooks).



USB adapter speed (with NETGEAR WNDA3100 v2) at close range is usually less than integrated

WiFi N in laptops as the interface is via USB instead of natively talking to the PC CPU bus. This is

not a limitation of the USB adapter, but reflects the speed at which the PC can interface and

process traffic while driving the USB adapter.



It is best to use mid channels in 2.4 GHz range (Channel 4 – 8) as they support the highest

power, per FCC/CE regulations, and hence provide extended range.



For the 5 GHz band, the higher the power, the better the range. NETGEAR recommends using

channel 153 for testing 5 GHz.

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