Leonid Tekanov

Less is more | CWNE#373

[Leonid Tekanov @LTekanov]

@wifiwise I would say it's 1 user per 8-10 sq meters.
But this user may bring 5 devices :)

I don't know, maybe modern beefy APs are just enjoying multipath thesedays, but, still I am worried if due to the ceiling reflections those APs would cause CCI at longer distances than we expect.

[Leonid Tekanov @LTekanov]

Today in Amsterdam I found out that there is such a thing as "climatic ceiling panels". Very energy efficient.
Unfortunately, made of metal, so the whole ceiling in your office is a large reflecting surface.

Anybody designed HD Wi-Fi in such offices? How did it work out?

[Leonid Tekanov @LTekanov]

@raymondhendrix @revolutionwifi If there is no NDA in place, could you share some examples of how you make the installation? Especially how exactly are you lowering the APs?

[Leonid Tekanov @LTekanov]

Aruba is transmitting the full set of 5GHz channels in its beacons, while my MacBook limits itself to 36-64 only.
There is a neighbor network with 36-64 in its beacons, maybe MacBook follows its restrictions.
Need to understand available channels from the legal point of view.

[Leonid Tekanov @LTekanov]

Anybody from Israel?
Trying to figure out local RF regulatory in 5GHz.

What channels are available to use indoor and outdoor without licensing?
Any useful links?

[Leonid Tekanov @LTekanov]

@VoFi_Martin @get_max Do you propose to shield or not to shield? :)
We are considering creating some kind of rf-attenuating "nests" for each AP to fight with interference from neighbor APs. But didn't try it yet.

[Leonid Tekanov @LTekanov]

Anybody got any experience with installing APs underfloor in crowded open spaces? We've done some tests but the noise level from adjacent APs was too high. It worked, however. The next step is to try again with directional antennas.

[Leonid Tekanov @LTekanov]

@curtisklarsen @Dutch_Fi Actually, it was fully tested only on Ubuntu. There is a plenty of space to contributions, when we talk Linux :)

[Leonid Tekanov @LTekanov]

I made a python-based tool to collect Wi-Fi diagnostics from macOS and Linux.

It's like Apple Wireless Diagnostics, but you are in control. And it generates human-friendly reports.
Free and open source. Welcome to contribute!

It's called "yfitool".
https://t.co/qdh083ksIS

[Leonid Tekanov @LTekanov]

@SondreSandberg1 Feel free to contribute :)

[Leonid Tekanov @LTekanov]

@raymondhendrix Definitely! Was lucky to attend same deep dive, thanks for sharing and investigating that “dirty radio” with SignalHound.

[Leonid Tekanov @LTekanov]

Can't emphasize enough how uplifting and inspirational #WLPC is.
Thanks for your support, have a safe trip, and see you all next time!
Peace!

[Leonid Tekanov @LTekanov]

@rambo_fi @GeorgeOu @martinwrenh @WirelessJimP Thanks for your comments!
It's so much fun in having all these tools on hand. Will try to dive deeper today. And probably share some new findings.

[Leonid Tekanov @LTekanov]

Accidently recorded the perfect explainer of why you should not install your APs near metall surfaces.
Share this with your installation crew!

@martinwrenh, thanks for being amazing narrator, nice to meet you!
@WirelessJimP, thanks for awesome antenna deep dive!

#WLPC #WLPC_EU

[Leonid Tekanov @LTekanov]

Was lucky to meet @mrncciew in person. Thanks for your canonical blog, returning to it every time!

[Leonid Tekanov @LTekanov]

This fluffy fella deserves recognition as a Wi-Fi professional too — for having to attend all my online meetings for the last half a year. #WLPC #WLPC_EU

[Leonid Tekanov @LTekanov]

@7taaltonen Hey Tuomas! Looking forward to finally meet you in person. I'm in Prague already. Just send me a message in Slack, when you ready.

[Leonid Tekanov @LTekanov]

Got my doubts before attending to #WLPC in Prague. Is a guy from Russia still welcome?
The first one I’ve met in the lobby was @Ferney_Munoz. He just hugged me and his “how are you” super warm and sincere, as always. And Matthew’s “glad you’ve made it” too.

Thanks. See you all!

[Leonid Tekanov @LTekanov]

@VoFi_Martin @EkahauSupport That's exactly what I've anticipated.
But looks like Mobile Device offset postulates... opposite?

Results could be reproduced with the following manual profile:
Offset @ 2.4GHz -14dB
Offset @ 5GHz -7dB

[Leonid Tekanov @LTekanov]

Hey @EkahauSupport!

Is this by design that RSSI is the same for 5GHz and 2.4GHz while having identical EIRP and antenna pattern in both bands (Generic AP used)?
This is witnessed only in View As Mobile Device Offset.