Use Blackout Comms stealth modes to manage your RF footprint / detect-ability. If you're not trying to remain hidden, leave stealth disabled.

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For slightly better battery performance and no RF footprint when not in-range of trusted devices, choose stealth low.

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Medium and high are more desirable when you don't care about location sharing, want to be able to send/receive messages and broadcasts, but don't want to reveal your position to RF scanners.