B5-Lite TX power limits in Brazil

I have a 7 km link with B5-Lites in Brazil. It works well enough for what I need but I can’t set the tx power to anything greater than 17 dBm – even on freq 5805 which isn’t DFS. Any reason for this?

I’d like to upgrade to fw 1.4.4 but I’ve seen reports of losing a few dB of signal and I’m already at -72 for this link.


Conseguiu resolver ?