@Sarah Davis good question, and honestly one that comes up a lot when people first start working with modules that have serious range headroom.
The short answer is the MultiNav Pro+ doesn't do automatic adaptive TX power out of the box — it's not running some background RSSI feedback loop that throttles output based on link quality. The external amplifier design that gets you to those extreme ranges is essentially always in the picture. So yes, at 20-50 meters you're technically overdriving the link relative to what the range requires.
That said, this is something you can address in firmware. The module's TX power is configurable, so if your use case keeps nodes close together you can just set a lower output level in your init config and leave headroom for the rare times nodes drift further apart. The AI Firmware Builder in the Dev Hub is actually pretty good for generating that kind of adaptive RSSI-based power management logic if you want to get fancy with it — describe the behavior you want and it'll give you something workable to start from.
The practical impact on battery life at close range is real, so it's worth tuning rather than just leaving it at max. Worth posting your tracking use case in the Dev Hub too — someone else has probably solved this exact pattern already.
