Re: Directional antenna for WiFi access point

Marco Moock <[email protected]> wrote:
> On 26.10.2024 um 17:26 Uhr [email protected] wrote:
> 
>> Marco Moock <[email protected]> wrote:
>> > On 26.10.2024 um 01:05 Uhr [email protected] wrote:
>> >   
>> >> If anybody has ideas or experience please post!  
>> > 
>> > Such antennas exist and they work, but there is still physics which
>> > means if there is too much unwanted signal that can reach your
>> > receiver, you can't communicate properly. The directional antenna
>> > can't by design filter out interference from the direction it
>> > points to. 
>> 
>> In this case I _think_ the unwanted signal is roughly opposite the
>> intended direction. Something that casts a shadow from the
>> interfereing side seemed likely to be helpful, though casting a
>> shadow doesn't seem trivial: An aluminum cookie sheet had little
>> effect.
> 
> Yagi antennas exist that have various connectors. Maybe choose such a
> solution.
> 
>> > I highly recommend installing shielded Cat wire, this will ensure a
>> > stable and fast networking operation.  
>> 
>> That's not a desirable long-term solution, but may end up being a
>> temporary one. 
> 
> Why?
> 

Very awkward cable routing. The AP is on one side of the house, the
client is on the opposite side three rooms away. Attic and crawlspace
access are both difficult for running cables. If I were younger I might
consider it, but it'd be much better to understand what ails the wifi.

A few minutes after sending my previous post the wifi started working
spontaneously for perhaps half an hour. Then it dropped again and
hasn't come back up. I didn't touch anything, wavemon reported 
-29dBm from my APat the time it came up, the strongest interferer was about
ten dBM weaker. Both strong signals, but plenty of differential.

Thanks for writing,

bob prohaska