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---

title: Settings — Radio & User

parent: User Guide

nav_order: 7

last_updated: 2026-05-20

description: Configure your radio hardware, LoRa presets, user profile, position sharing, power management, and security.

aliases:

Tff7b72- settings

Tff7b72- radio-config

Tff7b72- user-config

Tc9d1d9 - lora

Tc9d1d9---

Tc9d1d9# Settings — Radio & User

Configure your radio hardware and user identity parameters.

Tc9d1d9## User Settings

Tc9d1d9### User Profile

| Setting | Aprašymas |

| ----------------- | ------------------------------------------------------------------------------------- |

| Long Name | Your display name (up to 39 characters) |

| Short Name | 4-character abbreviated name |

| Licensed Operator | Enable if you hold an amateur radio license (enables higher power) |

Tc9d1d9### Applying Changes

After modifying settings, tap **Save** to write the configuration to your radio. The device may reboot to apply changes.

Tc9d1d9## Radio Configuration

Tc9d1d9### Device Config

| Setting | Aprašymas | Default |

| ------------------------------------------ | ----------------------------------------------------------------------- | -------- |

| Role | Node behavior (Client, Router, etc.) | Client |

| Rebroadcast Mode | How the node retransmits messages | All |

| Node Info Broadcast (s) | Interval for broadcasting node info | 10800 |

| Double-tap Button | Action for double-tap button press | Disabled |

Tc9d1d9### LoRa Config

| Setting | Aprašymas | Default |

| ----------------- | ----------------------------------------------------------------------- | ----------------------------------------- |

| Regionas | Regulatory region for frequency bands | Unset (must configure) |

| Modem Preset | Speed/range tradeoff | LongFast |

| Hop Limit | Maximum retransmit hops | 3 |

| TX Power | Transmission power (dBm); 0 = max allowed for region | 0 (region max) |

| Frequency Offset | Fine-tune frequency (MHz) | 0 |

| Channel Bandwidth | Bandwidth setting | Default for preset |

Tff7b72> ⚠️ **Important:** You **must** set your region before transmitting. Operating without the correct region may violate local radio regulations. See the [region configuration guide](https://meshtastic.org/docs/getting-started/initial-config) on meshtastic.org for details.

Tc9d1d9### Modem Presets

| Preset | Range | Speed | SNR Limit | Best For |

| ------------------ | ----------------------- | ------------------------- | ------------------------ | -------------------------------------------------------------------------------------------------------- |

| Short Turbo | ~1 km | 21.9 kbps | −5 dB | Dense urban with line-of-sight; data-heavy applications |

| Short Fast | ~3 km | 10.9 kbps | −7.5 dB | Urban neighborhoods; buildings within a few blocks |

| Short Slow | ~5 km | 5.5 kbps | −10 dB | Suburban short-range; moderate building density |

| Medium Fast | ~5 km | 5.5 kbps | −10 dB | Suburban areas; moderate building density |

| Medium Slow | ~8 km | 1.1 kbps | −12.5 dB | Suburban/rural; moderate range with slower speed |

| Long Turbo | ~10 km | 4.4 kbps | −10 dB | Similar range to Long Fast but with 500 kHz bandwidth; faster throughput |

| Long Fast | ~10 km | 1.1 kbps | −12.5 dB | **General use (default)** — balanced range and speed |

| Long Moderate | ~20 km | 0.34 kbps | −15 dB | Rural with some terrain; occasional use |

| Lite Fast | ~5 km | 5.5 kbps | −10 dB | EU 866 MHz SRD band (125 kHz BW); comparable to Medium Fast |

| Lite Slow | ~10 km | 1.1 kbps | −12.5 dB | EU 866 MHz SRD band (125 kHz BW); comparable to Long Fast |

| Narrow Fast | ~5 km | 2.7 kbps | −10 dB | EU 868 MHz band (62.5 kHz BW); avoids interference with other devices |

| Narrow Slow | ~10 km | 1.1 kbps | −12.5 dB | EU 868 MHz band (62.5 kHz BW); comparable to Long Fast |

| Tf85149~~Long Slow~~ | ~30 km | 0.18 kbps | −17.5 dB | ⚠️ **Deprecated** — still selectable but may be removed in a future firmware release |

| Tf85149~~Very Long Slow~~ | ~40+ km | 0.09 kbps | −20 dB | ⚠️ **Deprecated** — still selectable but may be removed in a future firmware release |

Tc9d1d9#### Choosing a Modem Preset

The modem preset controls the fundamental tradeoff between **range** and **data rate**:

Tff7b72- **Slower presets** use more spreading, making signals decodable at weaker signal levels (lower SNR limit). This means longer range but fewer bytes per second.

Tff7b72- **Faster presets** pack more data per transmission but require a stronger signal to decode.

**Practical guidance:**

Tff7b72- **Urban mesh (many nodes, short distances):** Use **Long Fast** (default) or **Short Fast**. Higher speed means less airtime congestion when many nodes share the channel.

Tff7b72- **Rural/sparse mesh (few nodes, long distances):** Use **Long Moderate**. Range matters more than speed when nodes are far apart.

Tff7b72- **EU 866/868 MHz regulatory compliance:** Use **Lite Fast**, **Lite Slow**, **Narrow Fast**, or **Narrow Slow** — these are optimized for the EU SRD/868 MHz bands with narrower bandwidths.

Tff7b72- **Fixed infrastructure links:** Use **Short Turbo** or **Long Turbo** for dedicated point-to-point links with good antennas and line-of-sight.

Tff7b72- **Mixed environments:** Stick with **Long Fast** — it's the community default and ensures compatibility with others in your area.

Tff7b72> ⚠️ **Important:** All nodes on the same channel **must** use the same modem preset. Nodes with mismatched presets cannot communicate even if they share the same frequency and encryption key.

Tff7b72> 💡 **Tip:** The range estimates above assume flat terrain and modest antennas. Elevation advantage (hilltop, rooftop) dramatically increases effective range. A well-placed Router with Long Fast can often outperform a ground-level node with Long Slow.

Tc9d1d9### Display Config

| Setting | Aprašymas |

| ------------------- | ------------------------------------------------------------------------------------ |

| Screen Timeout | Time before display sleeps |

| Display Units | Metric or Imperial |

| OLED Type | Auto, SSD1306, SH1106, SH1107 |

| Compass Orientation | Rotation offset for compass display (0°, 90°, 180°, 270°) |

| Tf85149~~Compass North~~ | ⚠️ **Deprecated** — replaced by Compass Orientation; still visible in older firmware |

Tc9d1d9### Position Config

| Setting | Aprašymas |

| ----------------------------------------- | ---------------------------------- |

| GPS Enabled | Enable/disable GPS |

| GPS Update Interval | How often to acquire GPS fix |

| Position Broadcast (s) | How often to share position |

| Smart Position | Enable movement-based broadcasting |

| Fixed Position | Use a manually set position |

Tc9d1d9### Power Config

| Setting | Aprašymas |

| --------------------------------------- | --------------------------------------- |

| Power Saving | Enable low-power sleep mode |

| Shutdown After (s) | Auto-shutdown idle timer |

| ADC Multiplier | Battery voltage calibration factor |

| Wait Bluetooth (s) | Time to wait for BLE connection at boot |

| Mesh SDS Timeout (s) | Super-deep-sleep timeout |

Tc9d1d9### Network Config

| Setting | Aprašymas |

| ------------- | ---------------------------------------------------- |

| WiFi Enabled | Enable WiFi radio (ESP32 devices) |

| WiFi SSID | Network name to connect to |

| WiFi PSK | Network password |

| NTP Server | Time synchronization server |

| Syslog Server | Remote logging server |


Tc9d1d9### Bluetooth Config

| Setting | Aprašymas |

| ----------------- | ------------------------------------------------------------------------- |

| Bluetooth Enabled | Enable/disable BLE radio |

| Pairing Mode | Fixed PIN, Random PIN, or No PIN |

| Fixed PIN | PIN code for pairing (default: 123456) |

Tc9d1d9### Security Config

| Setting | Aprašymas |

| ------------------------- | -------------------------------------------------------------------------- |

| Viešasis raktas | Your node's public key (read-only) |

| Admin Key | Key for remote administration |

| Privatus raktas | Your node's private key (handle securely) |

| Tf85149~~Admin Channel Enabled~~ | ⚠️ Removed — now configured automatically when an admin key is set |

| Debug Log | Output live debug logging over serial/bluetooth |

| Serial Enabled | Enable serial console access (moved from Device Config) |

| Managed Mode | Restrict non-admin channel changes |


Settings use standard preference controls — dropdowns, toggles, and sliders:

| Control | Screenshot |

| -------- | ----------------------------------------------------------- |

| Dropdown |  |

| Toggle |  |

| Slider |  |

Tc9d1d9## Related Topics

Tff7b72- [Tff7b72Settings — Modules & Admin](Te6edf3settings-module-admin) — optional feature modules and device administration

Tff7b72- [Tff7b72Signal Meter](Te6edf3signal-meter) — how modem presets affect signal quality thresholds

Tff7b72- [Tff7b72LoRa configuration](Te6edf3https://meshtastic.org/docs/configuration/radio/lora) — detailed LoRa settings reference on meshtastic.org

Tff7b72- [Tff7b72Initial configuration](Te6edf3https://meshtastic.org/docs/getting-started/initial-config) — region setup guide on meshtastic.org

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