[TriLUG] WiFi quality monitoring

[Joseph Mack NA3T]

On Thu, 14 Aug 2014, Joseph Mack NA3T wrote:

> The rf front ends of wifi routers have no filtering on them. They are 
> designed to be cheap. They're easily overloaded by out of band signals.

It's called intermod(ulation)

> The 
> cure is a wifi box with a different rf front end. I was lucky enough to find 
> that the first different brand worked fine. After that I found that the 
> original box worked fine if I used a paper clip instead of the antenna(s).

I found that the problem could be cured on the original box by putting 2db 
coaxial attenuators between the antenna and the connectors on the wifi box. This 
wasn't a great solution as the range was reduced and I had to use adaptors on 
each end of the attenuators to change from regular polarity to reversed polarity 
wifi.

Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!