@Nick-Stroumtsos

Moderator said in Power supply brownout w/ the Microhard Carrier USB Dongle
@Nick-Stroumtsos Our carrier board design is a few years old, there's a good chance it won't meet this newer spec.

That is correct, it is not going to be supported on this design.
We designed for the 30dBm max power modes from several years ago as shown here:
f1f632e6-b6ae-4764-9042-22ea4426fe05-image.png

We have a power consumption table in our tech docs that helps a user determine the limits for various modes:
https://docs.modalai.com/microhard-add-on-datasheet/#power-consumption
but nothing above 30dBm. We'd need new hardware for that.
Sorry, but at least hopefully that explains the behaviors you are seeing.