After several years of using the 500 mW Alfa USB WIFI Adapter for long-range WIFI networking, the N-mode network version is tested. Read about how the 2000 mW AWUS036NH USB WIFI adapter performs.
WIFI N-mode USB adapter - WLAN
The AWUS036NH USB WIFI from Alfa Network with 2000 mW transmission power;
The housing is identical to the 500 mW a/b/g mode AWUS036H USB WIFI adapter variant.
At the end of this article you find a link how to connect to weak WIFI signals with this USB adapter.
Ralink RT3070L Chip
Inside the AWUS036NH adapter is the one-chip Ralink RT3070L b/g/n network transceiver;
The chip manufacturer Ralink is now part of Mediatek.
WIFI signal strength - N-mode versus G-mode
The AWUS036NH in N-mode (2000 mW) is compared to the AWUS036 in G-mode (500 mW) with NetSurveyor;
The distance to the WIFI access point "tritonii5" is 75 meters with line of sight.
In this test only the USB WIFI adapter is swapped and the connection captured with NetSurveyor.
Signal strength for the WIFI access point "tritonii5" (-51 dBm) is 1 dBm weaker for the N-mode version compared to the G-mode Alfa WIFI USB adapter (-50dBm).
Although the received signal strength is weaker, the N-mode adapter is much faster with a 135 Mbps connection compared to a 50Mbps connection for the G-mode version.
Comparison - AWUS036H versus AWUS036NH
For far away WIFI access points, the G-mode AWUS036H (500 mW) will have a bit more chance to establish a connection than the more power full AWUS036NH (2000 mW).
When closer to a N-mode WIFI access point it's better to use the AWUS036NH.
The 2000 mW seems to be more brochure talk - the real difference is speed.
Tools & information used in this article;
A few price references;