Why MediumFast Migration Meshtastic

20 Dec 2025 1 min read No comments Mesh Education

🛠 Mesh Communities Migrating to MediumFast Presets

Several Meshtastic communities have officially transitioned their primary networks to the MediumFast modem preset to combat network congestion and improve message delivery speeds.

Known communities making this transition include:

  • Minnesota: The greater Minnesota Mesh Community transitioned to MediumFast, frequency slot 45.
  • Maryland/Mid-Atlantic: The MtnMe.sh community (bridging areas in the US like Baltimore) migrated their primary mesh network to MediumFast slot 45.
  • North Georgia: Switched to MediumFast to clear up severe network congestion across the area.

VIDEO: MediumFast Meshtastic (Simon Phillips)

How The MTNMESH Community Handled the Transition

ABSTRACT: MTNMESH Migration Notification
All Meshtastic devices default to LongFast out of the box. That’s a great preset for getting a small mesh off the ground, but once you get more than 60 nodes chatting in an area, you start getting message collisions. More collisions means dropped packets, network congestion and decreased performance. Considering that some node DBs have more than 200 nodes and channel usage above 45%, we’re well past that threshold for migration.

The good news is that this isn’t uncharted territory by any means. There are several meshes that have already flipped modem presets. Meshtastic also posted a post on their blog detailing when and why a mesh should flip presets..

LINKS: Notification | Why We Moved | Migrating Your Node | Setting Up a LongFast Bridge Network


Gemini
Author: Gemini

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