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16 lines
918 B
Plaintext
16 lines
918 B
Plaintext
---
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title: Overview
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sidebar_label: Overview
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slug: /overview
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sidebar_position: 2
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description: "Discover the basics of Meshtastic's operation, from sending messages via the companion app to the network's intelligent rebroadcast system for extended reach."
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---
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## How it works
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When you send a message on your Meshtastic companion app, it is relayed to the radio using Bluetooth. That message is then broadcasted by the radio. If it hasn't received a confirmation from any other device after a certain timeout, it will retransmit the message up to three times.
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When a receiving radio captures a packet, it checks to see if it has heard that message before. If it has it ignores the message. If it hasn't heard the message, it will rebroadcast it.
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For each message a radio rebroadcasts, it marks the "hop limit" down by one. When a radio receives a packet with a hop limit of zero, it will not rebroadcast the message.
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