Wireless: Alfa AWUS051NH

[jpkirk]

Alfa AWUS051NH, works, injection works

[sleepdead]

thank you!

[IOStorm]

Alfa AWUS051NH, works, injection works

Are you using a dual USB cable with this, to supply extra power? The adapter is listed on Amazon as being 2000mw. I didn't think you could get that much juice from USB ports.

[oliverkrystal]

I think the 2000mW refers to the wireless strength

[jpkirk]

The 2000mw adapter is the AWUS036NH. It only operates in 2.4GHz. The 51NH operates in both 2.4 and 5GHz.

As for power requirements. I have heard but not verified that the 2000mw is somewhat misleading in that Alfa includes the dBi of the antenna in its advertised rating. So the number they quote would actually be an EIRP number. The 51NH I have came with both a 5dBi and a 9dBi antenna. So all that "extra" power is due to the antenna and not the actual device itself. So, assuming that a 9dBi antenna is used for the 2W output of the 36NH device, the output at the device would have to be around 250mw. Not sure what the max for USB is.

Recognize that I am no expert at calculating dB. What I do know is that every 3dB up or down is twice or half power respectivly.

[Ethhunt]

Woo, thank god. Because I just ordered "Alfa AWUS051NH 500mW High Gain 802.11a/b/g/n high power Wireless USB A / B / G / N Wireless WiFi Network adapter With a 5dBi and 9dBi magnetic base Rubber Antenna, Mini bendable Flex cable and Suction cup / Clip Window Mount - High speed Up to 300 Mbps - With Hot Swap Support". Is this the one you said works right?

[Arnianor]

Hello !

I just read this thread and the out-of-the-box one and want to order ausb dongle. Being quite new, I didn't get everything so maybe can you advice me which one to choose between the awus036nh and the awus051nh.
I was about to order the awus036nh but noticed that the chipset listed on alfa's website is rt3070 where the chipset listed here for this card is rt2870, so will it still work ?
Then asus051nh is listed with two different chipset, rt2770 and rt2750 on alfa's website. Is one better than the other ?

Last question, what do you guys think about the alfa awuso36neh ?

Thanks !

[jpkirk]

Again, sorry for the late reply. I bought the AWUS051NH because it supports both 2.4 and 5GHz. I needed it for my windows box and was blessed with it also working very well in a straight HDD install and a VMWare install of BT5. In VMWare it seems to drop after a while. I think that is a VMWare issue though since it works fine in the HDD install. I have not tested under BT5 R1 yet. Working on that.

[alpunka08]

hello i have been trying to get this to work for about two weeks now

Backtrack 5

"root@bt:~# airmon-ng start wlan0

Found 2 processes that could cause trouble.
If airodump-ng, aireplay-ng or airtun-ng stops working after
a short period of time, you may want to kill (some of) them!

PID Name
1213 dhclient3
1669 dhclient3
Process with PID 1669 (dhclient3) is running on interface wlan0

Interface Chipset Driver

Wlan0 Ralink RT2870/3070 rt2800usb - [phy0]
(monitor mode enabled on mon0)







How do i fix this?? i am a n00b ish

[jpkirk]

Sorry for the late reply. Yes. I have two and they rock.