Connect
Pair your phone with a compatible Meshtastic radio using Bluetooth, Wi-Fi, or USB.
Community-powered, off-grid communication
Help build the Greater Port Huron Meshtastic network.
MeshPH is a community effort to expand reliable, license-free LoRa messaging throughout Port Huron, Fort Gratiot, and the surrounding Blue Water Area.
Target coverage
Port HuronFort GratiotBlue Water Area
What is Meshtastic?
Text messaging without cell towers or monthly service.
Meshtastic is an open-source, decentralized mesh network built with inexpensive LoRa radios. Your phone connects to a small radio by Bluetooth, and that radio sends encrypted messages from node to node.
Because each well-positioned node can relay traffic, the network becomes more useful as more people participate. It can support everyday experimentation, outdoor recreation, community events, and backup communication when normal infrastructure is unavailable.
How it works
Transmit
Your radio sends short messages over license-free LoRa frequencies without a cellular plan.
Relay
Other nodes repeat packets across the area, extending communication beyond a single radio link.
Grow
Outdoor nodes placed high and in the clear help strengthen coverage for the entire community.
Getting started
Join MeshPH in four steps.
No amateur radio license is required for normal Meshtastic operation in the United States. Use certified hardware and follow applicable FCC rules.
1
Choose a device
Start with a supported radio such as a Heltec, RAK WisBlock, LilyGo, or other Meshtastic-compatible device designed for the US 915 MHz band.
2
Install Meshtastic
Install the Meshtastic app on Android or iPhone, then flash current stable firmware if your device does not already have it.
3
Apply local settings
Set the radio region to United States and use the network settings shown below so your node can communicate with nearby MeshPH users.
4
Place and test
Put the antenna near a window or outdoors, send a message on the primary channel, and check which nodes you can reach.
MeshPH settings
Recommended settings for the Greater Port Huron mesh.
These settings keep new users compatible with the standard public Meshtastic network while the local mesh is being built. Private or specialized channels can be added later without replacing the primary channel.
Important: Do not change the primary channel’s pre-shared key unless the community announces a coordinated change. Nodes with different modem presets or keys will not communicate on that channel.
MeshPH configuration
- LoRa Region
- US
- Modem Preset
- LONG_FAST
- Primary Channel
- LongFast
- Channel PSK
- Default
- Frequency Slot
- Default / Automatic
- Hop Limit
- 3
- Node Role
- CLIENT
- MQTT
- Off for most nodes
Build the network
The best contribution is a well-placed outdoor node.
Height and a clear view of the surrounding area usually matter more than raw transmit power. A weatherproof, solar-powered node on a rooftop, tower, silo, or other elevated location can dramatically improve local coverage.
- Use a quality 915 MHz antenna and keep feed-line loss low.
- Mount the antenna outdoors and above nearby obstructions.
- Use the CLIENT role unless the local administrators specifically recommend another role.
- Give fixed nodes a recognizable name and avoid sharing an exact home location publicly.
- Keep firmware reasonably current and document any permanent coverage node.
Local participation
Have a good location for a node?
Businesses, radio enthusiasts, homeowners, public-service groups, and community organizations can all help fill coverage gaps across the Blue Water Area.
Common questions
MeshPH FAQ
Does Meshtastic replace emergency services?
No. Meshtastic is a hobbyist and community communication tool. Never rely on it as your only way to reach 911 or receive official emergency information.
Do I need internet access?
No. Nearby radios communicate directly over LoRa. Internet-connected MQTT gateways are optional and should be configured carefully because they can change network behavior and privacy.
How far will a node reach?
Range depends heavily on antenna height, terrain, buildings, interference, and hardware. A handheld indoors may reach only a limited area, while elevated outdoor nodes can cover many miles under favorable conditions.
Should every rooftop node use the ROUTER role?
No. Overusing router roles can hurt network performance. Start with CLIENT. Specialized roles should be coordinated with experienced local operators.
Can I add a private channel?
Yes. You can add secondary encrypted channels for a family, group, or event while keeping the standard primary channel available for local public traffic.