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Good news! D-Link DWA-140

Posted: Mon Jun 16, 2008 6:51 pm
by brenny
The D-Link DWA-140 works a treat with OmniPeek; with certain caveats.

In order that there be no misunderstanding the device in question is thus:

D-Link DwA-140

FCC ID: KA2WA140B1 IC:4216A-WA140

H/W VER: B1
F/W VER: 1.00

Otherise known as the "D-Link DWA-140 RangeBooster N USB Adapter"

The driver used is the 'Ralink USB Driver a/b/g/n ralink_usb2870' as provided through 'MyPeek'


As regards the caveats the main problem is that the memory usage is atrocious, though there are things you can do about this.

I'm not sure whether the problem is due to OmniPeek's memory usage in general or that this particular driver has a heavy memory footprint.

NOTE: 'Out Of Memory' message seems to be due to inexplicable 'spikes' which drive memory usage over 200 MB's. Clicking 'OK' a few times will revert things back to normal.

Reducing the memory usage of OmniPeek in general;

Monitor->Options->Performance; Deselect items not required, if you require them all you're busier than I am!

Capture->Options->Performance; Deselect items not required, particularly video if it is not needed.

Minimising OmniPeek to the task bar whilst collecting information will reduce memory usage dramatically and this can only be put down to OmniPeek itsef and is not a driver issue.

OmniPeek can be slow to start and show the ridiculous 'Out Of Memory' message if the wireless interface is pre-selected, change to the wired interface on exit and OmniPeek will open faster next time at which
point you can choose the WLAN in 'Monitor->Options'

If there is an official memory management thread for OmniPeek let me know!

Incidentally the 'DWA-140' is actually a fine device in its own right with good range and signal strength.

If you need USB support at a reasonable price this is a good adapter to have although I'm pleased to say I have managed to enable the expensive "Belkin F5D8053 N Wireless USB Adapter" to work with OmniPeek with a trivial driver tweak but I'll explain that in another post.

The 'D-Link DWA-140 RangeBooster N USB Adapter' can be added to the list of compatible adapters!

Hope this helps some people,

take care

Brenny