Something different is happening in Connecticut. This is not just another mesh experiment. This is a network being built with intent, and the backbone of that network is repeaters. Over the past two weeks, the Connecticut MeshCore network has expanded at a pace that stands out.

• March 25: 157 total nodes
• April 7: 331 total nodes

That is 174 new nodes in just 13 days. The growth is real, but the more important story is how that growth is happening.

Repeaters Are Driving the Network

They are what set MeshCore apart. In many mesh systems, including Meshtastic, most devices act as equal peers. That often leads to short range, inconsistent paths, and heavy reliance on flooding. MeshCore takes a different approach. It encourages dedicated, always-on repeaters placed in strong RF locations where height, antenna performance, and uptime matter.

Connecticut leaned into that model early. Repeaters increased from 103 to 165, while companion devices grew from 46 to 153. Companion growth is now accelerating, but the network only works because the repeater layer came first. At one point in late March, more than half the network consisted of repeaters. That is unusual, and it created a strong RF backbone from the start.

Why Do Repeaters Matter?

A repeater-heavy network changes how everything behaves.

• Better range per hop
• More predictable paths
• Less packet loss
• Less dependence on flooding
• Stronger performance in urban clutter

Instead of random peer-to-peer hops, traffic moves across a structured RF layer.  In simple terms, repeaters turn a loose mesh into a usable network.

Connecticut’s Build Strategy

The Connecticut effort, organized informally through CT Mesh, followed a clear strategy from the beginning. Repeaters were placed high and in the clear. Frequencies and configurations were standardized. Growth focused on filling geographic gaps rather than simply adding nodes. That approach shows up clearly in the data. In just a few days at the end of March, repeaters jumped from 103 to 118, with more than 100 added in rolling weekly counts. Once that backbone was in place, companion growth followed.

Activity levels confirm that the network is working. Daily active nodes consistently range between about 90 and 140. Even as the network doubled in size, activity did not drop. Nodes are not just being deployed. They are being used, and messages are moving reliably.

You can see a clear transition in the network’s evolution. Early on, the focus was on building infrastructure, with heavy repeater deployment and fewer users. Now, the network is entering a usage phase, with companion devices growing rapidly and approaching a one-to-one ratio with repeaters. That shift signals a healthy, functional system.

Geographically, the project first took hold in central Connecticut and has recently seen strong growth in eastern Fairfield County. At the same time, there are still clear coverage gaps. Southwestern Connecticut, particularly lower Fairfield County, remains largely without repeater coverage. Northwestern and parts of eastern Connecticut also show significant voids on the CT Mesh node map.

That may begin to change. The Greater Bridgeport Amateur Radio Club (GBARC) recently received a grant from Amateur Radio Digital Communications (ARDC) to install five repeaters across southwestern Fairfield County. These sites will be positioned along the coastal communities, an area that is currently underserved. This kind of targeted deployment has the potential to unlock large portions of the network and improve regional connectivity.

Just as important, it sets an example. When new repeaters come online in strategic locations, they tend to spark additional growth. Other clubs and individual operators often follow, filling in gaps and extending coverage outward. That is how this network has grown so quickly so far.

How This Differs From Typical Mesh Deployments

This is also where MeshCore differs from many typical LoRa mesh deployments. In many setups, nodes are placed low, antennas are compromised, power is inconsistent, and routing is opportunistic. The result is uneven coverage and unreliable performance. In Connecticut’s MeshCore network, repeaters are placed high, antennas are tuned, and uptime is a priority. Coverage is planned and expanded deliberately. That structure produces stronger links and more consistent performance.

Where to Learn More

If you want to explore the network or get involved, CT Mesh maintains a central hub and Discord community where you can find setup guides, frequency plans, live network data, and active coordination to help you get on the air and contribute to the build-out.

• https://ctmesh.org
• https://discord.gg/aZHgYWpK.

What Comes Next

The foundation is already in place. A dense repeater backbone, strong daily activity, and rapid user adoption are all established. The next phase is refinement. Filling coverage gaps, extending into underserved regions, and improving path efficiency will define the next stage of growth.

If the repeater-first approach continues, Connecticut is on track to become one of the most complete MeshCore deployments anywhere. That progress did not happen by accident. It came from focusing on what matters most in RF networks: height, coverage, and repeaters.