Today we performed tests on a R11e-LR8 card.
In the attachment I present a comparison of your product vs another company product.
The main beam is accompanied by side beams at unacceptable level. We found that the side beams signal seems to be lower with higher LoRa SF.
1st image - Mikrotik
2nd image - LorixONE

Hello,
we have simillar problem, please check the attached image from the spectrum analyser.

Thanks