10 min read — DOSnet Blog
If you've ever looked into LoRa communication technology and found yourself reading about duty cycle restrictions, 1% airtime limits, or European frequency regulations, you may have walked away confused — or worse, worried that LoRa might be legally restricted here too.
It's not. And the reasons why tell a genuinely interesting story about Australian spectrum policy, and why we as Australians are in a better position than most of the world to build the kind of community communication networks that DOSnet exists to create.
First: what is AU915?
AU915 is the frequency plan used by LoRa devices in Australia. It operates in the 915–928 MHz band — specifically, a set of channels within that range defined by the LoRa Alliance for Australian and some other Asia-Pacific deployments.
The number matters because different countries allocate different frequency bands for unlicensed low-power devices. The United States uses US915 (902–928 MHz). Europe uses EU868 (863–870 MHz). Japan uses AS923. India uses IN865. Australia uses AU915.
Each plan has different characteristics: available channels, maximum transmit power, duty cycle rules, and legal frameworks. And this is where Australia genuinely stands apart.
The European problem: 1% duty cycle
In Europe, LoRa devices operating on the EU868 band are subject to a duty cycle restriction of 1%. This means a device can only transmit for 1% of any given time window — 36 seconds out of every hour.
This restriction exists because the EU868 band is shared with many other services and the regulators needed a mechanism to prevent individual devices from dominating the shared spectrum. It's a reasonable regulatory response to a real problem. But for applications like mesh communication networks — where you want nodes to relay messages reliably and frequently — a 1% duty cycle is a significant constraint.
European Meshtastic users have to be careful about how frequently their nodes transmit. Busy networks can hit duty cycle limits, causing messages to be queued or dropped. Community mesh networks operating at scale in Europe need to account for this ceiling.
What Australia has instead
The AU915 band in Australia operates under the ACMA (Australian Communications and Media Authority) class licence framework for low-interference devices. This framework does not impose the same 1% duty cycle restriction that applies in Europe.
Australian LoRa operators must comply with the transmit power limits and technical specifications defined in the class licence — and DOSnet nodes are configured to do exactly this — but they are not subject to a hard duty cycle ceiling in the same way European operators are.
This means Australian Meshtastic networks can be more responsive, handle more traffic, and operate more reliably in high-usage scenarios than their European equivalents. A community mesh with dozens of nodes, handling frequent GPS updates, message traffic, and sensor data, can do so without bumping against a hard regulatory ceiling.
Why the 915 MHz band is better for range
Physics matters in radio. Lower frequencies travel further and penetrate obstacles better than higher frequencies. The 915 MHz band that Australia uses sits below the microwave range and propagates well through vegetation, building materials, and terrain.
Compared to the 2.4 GHz used by WiFi, or the higher frequencies used by some competing technologies, 915 MHz delivers meaningfully better range and obstacle penetration for the same transmit power. This is one of the reasons DOSnet nodes achieve 3–12km range in real Australian terrain — the physics of the frequency is working in our favour.
The ACMA class licence: what it means for you
The class licence framework is one of the most practical and user-friendly regulatory frameworks for low-power radio in the world. Under a class licence, the licence covers an entire category of compliant devices. Individual users don't need to apply for, pay for, or manage their own licence.
This means you can purchase a DOSnet node, power it on, and be operating a legal radio device in Australia with no paperwork, no registration, and no ongoing regulatory obligation. You can deploy commercially — for farming, worksites, fleet communication — without a commercial radio licence. DOSnet nodes are configured to comply before they leave Brisbane.
What the AU915 advantage means for community building
Australia is one of the largest countries on earth by land area. It has some of the most challenging communication environments anywhere — remote outback, dense coastal ranges, deep river valleys, vast agricultural plains. And it consistently experiences natural disasters that destroy telecommunications infrastructure at exactly the moments when communication matters most.
The AU915 regulatory environment gives Australians a legal, accessible, affordable framework to build their own community communication infrastructure. Without duty cycle restrictions limiting network density. Without individual licensing requirements creating barriers to participation. Without the legal complexity that makes this technology harder to deploy in other parts of the world.
We are, genuinely, in a fortunate position. And the question is whether we use it.
The tragedy of awareness
Most Australians have never heard of LoRa. Most farmers, most outback workers, most rural communities that are chronically underserviced by telcos have no idea that the technology to build their own communication network exists, is legal, is affordable, and is operating in their country right now.
The Taliban in remote mountain terrain knows about this technology. Drug cartels running covert networks across international borders know about it. Meanwhile, a farming family in a Queensland valley with zero phone reception and a history of flood isolation doesn't.
That's the gap DOSnet exists to close. Not through complexity, not through expensive subscriptions, not through government programmes that take five years to roll out. Through a pre-flashed node, a solar repeater on a ridge, and a family that can now communicate across their entire property for the first time.
Strategies for building Australia's grid
The AU915 advantage means Australia can build one of the most extensive community LoRa mesh networks in the world. The regulatory environment supports it. The physics supports it. The geography — vast distances, sparse population, frequent disasters — creates the need more urgently here than almost anywhere else.
Individual property coverage: Every farm and remote homestead that deploys a mesh network becomes a node in something larger than itself. A node on a ridge serves that property — and potentially relays messages for neighbouring properties within range.
Community coordination: Towns, neighbourhoods, sporting clubs, and community organisations that deploy community packs create dense coverage in specific areas. When clusters of nodes connect across properties and routes, the network grows organically without any central coordination.
Route coverage: The outback highway routes that traverse hundreds of kilometres of zero-coverage country are some of the highest-value corridors for mesh deployment. A truck driver with a node in their cab contributes a moving relay point to every other mesh user along that route.
Emergency resilience: SES chapters, rural fire brigades, flood response teams, and emergency management organisations that adopt Meshtastic create a disaster-resilient communication layer that operates independently of the infrastructure that disasters destroy. This works exactly when nothing else does.
We should feel fortunate — and responsible
The AU915 frequency allocation, the ACMA class licence framework, the 915 MHz physics — these are advantages that many countries don't have. Countries where LoRa community mesh deployment is constrained by duty cycles, individual licensing requirements, or frequency allocations that reduce range.
Australian operators have the regulatory freedom to build community mesh networks at scale. The technology is ready. The legal framework supports it. The need is undeniable — every flood season, every fire season, every drought year makes it clearer that Australia's most vulnerable communities need a communication layer that doesn't depend on infrastructure that disasters can destroy.
What's missing isn't regulation or technology. It's awareness, and the decision to act on it.
At DOSnet, every node we sell is a small act of infrastructure building. Every farm pack deployed is a family that can communicate when the towers fail. Every solar repeater on a ridge is a permanent relay point that serves everyone in range — whether they know it or not.
We're building Australia's backup grid. One node at a time. In a country that, because of AU915, has every regulatory advantage it needs to do exactly that.
The question is whether we take it.
Ready to be part of the network? Browse DOSnet packs | Start with our beginner guide