My last blogpost compared my Sidekick to my Proxim adapter. I did this because I used to use a Proxim, and now I use a Sidekick for WLAN surveys. I have colleagues that use the Edimax and Comfast adapters, so I went out and purchased a few so I could compare. I did this because a year or so ago, I was comparing my Proxim survey to a colleague’s Comfast survey. We both did the same building, but at different times, and the results were way off. They differed so much I though the other machine had a bad WLAN adapter.
So here we go again, comparing the four adapters listed above. This is of the same facility as last time, however a different part of the building that came online recently. Same requirements for the WLAN, same guy doing all four surveys. Same machine, same walking speed, same ballcap and same worn out tennis shoes. This time I am going to show -60 dBm so I can fit it on the graphic. There is no other reason for this, so please don’t go using -60 dBm as a survey requirement because you saw it here. I normally look at -67 dBm for voice surveys if you were wondering. This is 5 GHz, of course. I’m also not going to compare every AP, because there’s no point.
Now I’m going to get right to the point. Here they are:
Sidekick -60 dBm
Here is my Proxim’s adapter at -60 dBm. Very Similar to the Sidekick. I expected this, since I did a validation a few weeks ago and highlight that in my blogpost.
Now the Comfast CF-912AC USB network adapter @ -60 dBm:
Last but not least, the Edimax AC1200 at -60 dBm:
My only comment is, “hey, nice ears, Edimax. I would say that the Edimax adapter saw the APs slightly louder than everyone else. Not by much, though. Just for kicks, I have knocked 5 decibels off the Edimax view above and it sort of looks like the others. Maybe that is because the Edimax has the little plastic antenna that folds out. I’m not going to pry mine apart to find out if it is empty plastic or if it actually has antennas in there.
I have been slowly adding some WLAN adapters to rssicompared.com, and I have high hopes of adding all my adapters to that site so we can all benefit. I am also creating my own little spreadsheet that will become a blogpost that compares the network adapters I find in my daily life.