Amplifying or bigger antennas can pick up more noise and not improve distance. You can try this on your own with any hearing aid. Pushing the volume up does not mean you hear things farther away. You also increase all other noise.
I rarely have to use such a system because I move my WiFi hotspot to a better location.
Bob
We got a cheap 2.4GHz 25 dBi Yagi Wireless WiFi Antenna on ebay to improve WiFi long range but after several tests indoor and outdoor, it turned out that the performance of the Yagi Antenna is much worse than
Alfa-APA-M04-directional-antenna-7-dBi.
The Alfa-APA-M04 is able to see around 10-12 APs and even connect to some of them. The Yagi dosen't even see half of them and also unable to connect.
I am wondering how is it possible that the 25dBi Yagi is so bad compared to the Alfa-APA-M04 7dBi?
Does anyone have experience with those antennas?
Thank you for any advice.

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