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hurymak
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Best wifi settings for "noisy" environment?

Fri Feb 10, 2017 3:00 pm

When working in area, where there is plenty of electromagnetic devices, and much of metallic elements around
what setting can help to improve signal?
at least some...
 
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cdiedrich
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Re: Best wifi settings for "noisy" environment?

Fri Feb 10, 2017 3:52 pm

It depends ;-)
Are you talking about regular clients connecting to your AP or about a PTP/PTMP deployment?

For the latter I'd recommend lowering the channel width to the absolute minimum.
Make your antennas as directive as possible.
RF rear shields prove to be pretty efficient in my experience - use them on sectors to filter out noise from rear and partially sides.
Also ceramic filters in the cable path between antenna and APs are a very good choice (as close as possible to the antenna) - the drawback of those obviously is that you have to stick with the selected frequency until you change the filter.

-Chris
Christopher Diedrich
MTCNA, MTCUME, MTCWE
Basel, Switzerland
Bremen, Germany

There are 10 types of people: Those who understand binary and those who don't.
There are two types of people: Those who can extrapolate from incomplete data
 
hurymak
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Re: Best wifi settings for "noisy" environment?

Fri Feb 10, 2017 6:16 pm

It depends ;-)
Are you talking about regular clients connecting to your AP or about a PTP/PTMP deployment?

For the latter I'd recommend lowering the channel width to the absolute minimum.
Make your antennas as directive as possible.
RF rear shields prove to be pretty efficient in my experience - use them on sectors to filter out noise from rear and partially sides.
Also ceramic filters in the cable path between antenna and APs are a very good choice (as close as possible to the antenna) - the drawback of those obviously is that you have to stick with the selected frequency until you change the filter.

-Chris
thanks.

Currently there is this router:
CRS109-8G-1S-2HnD-IN
and its normal AP inside company.
Employees work on PC with usb wifi cards and also want to use theirs mobile phones.
I tested it on my android phone with tik app:

tx/rx signal strenght: -56dBm
ch0 :-60
Ch1: -59dBm
signal to noise: 46
tx/rx ccq: 83%
 
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cdiedrich
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Re: Best wifi settings for "noisy" environment?

Mon Feb 13, 2017 3:12 pm

Hmm...
those numbers look quite OK to me.

Let's try some basic improvement moves:
Get your device as high and as central as possible in the office.
Read "as high as" like "at least 50cm over head height.
Make sure your antennas have a perpendicular orientation to each other (one upright, one flat).
Find the least congested channel in your office.
Maybe it's a good idea to lower TX power. As a start, set our regulatory-domain to your country.

Good luck,
-Chris
Christopher Diedrich
MTCNA, MTCUME, MTCWE
Basel, Switzerland
Bremen, Germany

There are 10 types of people: Those who understand binary and those who don't.
There are two types of people: Those who can extrapolate from incomplete data

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