search

SaddlebackCollegeRobotics / .github

0 stars 0 forks source link

Test alternate WiFi antennas. #195

Closed Supernova1114 closed 4 months ago

Supernova1114 commented 5 months ago

Having issues with low bandwidth and spotty connection with current 2.4 GHz antenna. Will need rover to traverse at the maximum 1 km range.

Supernova1114 commented 5 months ago

The antenna we previously used was a 6 dbi antenna with a ubiquti bullet. We are now using a 13 dbi antenna, with the ubiquiti rocket 2ac prism.

An initial test within the lab gave a stable 60 Mb/s. Sometimes it would spike to 110 Mb/s. With the original antenna and bullet, we were getting 10 to 30 Mb/s.

This new setup seems much less susceptible to radio noise.

Next step is to do a range test with the antenna.

It looks like we are using a 90 degree sector antenna. If it happens that our FOV is not good enough, there is also a 120 degree version that just have one less dB than our current antenna.

https://store.ui.com/us/en/collections/uisp-wireless-antennas-sector/products/am-2g15-120

Supernova1114 commented 4 months ago

Sector antenna seems to be fine with the new 16 dbi antenna on the rover side.