We’ve experienced a high number of uplink retransmissions on one of our new ePMP 3000l sectors utilizing a Cambium 90/120 antenna. After some investigation, I realized a few of our customers are actually higher or possibly level with the AP. I’m concerned the vertical beamwidth isn’t broad enough to reach them, causing the poor signal. They’re receiving about 76dbm at 5 miles with high packet loss.
Has anyone experienced this? Is there any way apart from adding a directional horn etc. to solve this?
Horns are honestly the only way to go for antennas. Once you get over the fear the gain is less, it will out perform a sector in probably every circumstance.
Well, 10 miles is a haul… How are you having vertical beam issues at 10 miles with a sector? At those distances, I would go with the asymmetrical horns from RFE. They will give you similar gains to sectors. Your vertical width is 1/2 the horizontal width of the horn.
Hello @claya,
did you try to play with the link planner? You can try different antenna combinations. Also visual presentation can give you some clue how to sort this issue.