Hi folks,

right now I am told to create a map of our WLAN at work. Does anyone know a tool which might help me out there?

Else I would just run around and write down the db of the signal at certain points and then do some fancy with it.

Regards Zhjim

The latter approach is the only one that works.

Students did extensive research trying to map the wifi at a College/University I passed through not that long ago. They found that a cement wall (concrete block with plaster both sides) lost you 99% of the signal. That's -20dB. But a trip through a window and reflected from a building 50 or 100 metres away and back in through another window was very inexpensive in signal by comparison (-6dB to -12dB) :-o.

I found a tool but its for windows. Dang.

We have the same problem with diverse materials. Specially in the warehouse. Some metal shelfs, some walls for small parts containments. And another firm like 50 meters away have our signal crisp and clean =

Thanks for the input. I leave the thread open for a while maybe someone has a spot on.

That College had cement walls between corridors and classes. They ensured poor/no reception in the classes. Access points were in corridors, and one opposite the door of the networking lab gave access in there. Public areas ( cafe, library & computer rooms, foyer) had coverage also. The students union was remote and had a special wifi arrangement, as cat5 had been tried & failed.

You kept the same IP wherever you went, and the same access point IP, so I presume DHCP was centralised somehow.

Guess the IP goes through roaming. Have some AP's from unifi within the office and the transit between all three are not recognisable. So not tested any VoIP things. Guess you'll notice then. But for just browsing and minor file edition while walking (Guess I'm the only one doing this ) works nice.
The missing cable connection could be helped through repeaters I guess. So the only some AP's need wired connection to DHCP or the AP's doing it all by themselfs. Should be no problem here.

I finnaly was able to locate all the AP's physicaly. Could connect through IP but some where hidden quite nice behind shelfs and alike.

When laying out for a big place, use a few APs and centralise DHCP if you can. Then they can have the same outward facing IP, just with different server facing ones.

DHCP is all set and good.

Did not really find any dark spots but having the testing guy note if he finds any. I'll then add another AP there. Now up to burn in the latest firmware.