Mode Meshtastic

Meshtastic: LoRa mesh network nodes and messages.

Group	IoT & sensors
Default frequency	869.525 MHz
Default sample rate	2 Msps
In the mode list	LoRa mesh, 869.525 MHz

Step-by-step: Tutorial-Meshtastic

What Meshtastic is

Meshtastic is an open LoRa mesh network for off-grid text messaging between small battery-powered nodes.

Frequencies and settings

Meshtastic and MeshCore (LoRa).

Setting	Value
Start frequency	869.525 MHz
Tuning range of the mode table	400 to 2500 MHz
Sample rate asked	2 Msps
Lowest working rate	1 Msps
Channel width	250 kHz

OnAir takes any frequency you type; the numbers above are the mode's starting point and the range its table describes. In the app the shortcut label is LoRa mesh, 869.525 MHz.

What OnAir shows

Nodes, map and chat.

The mode's own tab has these screens: Nodes, Map, Chat, Packets, Telemetry, Settings. The other tabs (Overview, Receiver, Scan, History) are described on the Main window page.

Tips and caveats

• Checked with generated signals and impairments; recordings of real signals welcome.
• Which radio: Usually yes for narrowband signals: an RTL-SDR tunes roughly 24 MHz to 1.7 GHz at up to about 2.4 Msps. Wide signals such as TV channels need a faster radio, and OnAir says next to the source what the selected radio can do.
• Try it without a radio: most modes include a built-in synthetic test signal, so you can open the screen and try the controls first.
• Receiving and the law: This mode is passive. It only receives, never connects, pairs or joins networks, and never decrypts payloads. Check the rules where you live. See Legal.

Related pages

• All modes, IoT & sensors
• Supported radios, Troubleshooting, FAQ
• More in IoT & sensors: ISM sensors, LoRaWAN, MeshCore, Bluetooth LE, Zigbee / 802.15.4, Wi-Fi HaLow (802.11ah), ANT+ sensors, DECT cordless phones, Wi-SUN FAN, LoRa (raw), Wi-Fi networks