Every remote project starts with the same question.
Will the phone network actually work out there?
Most people answer it by opening a carrier coverage map, seeing a patch of colour over the site, and moving on. Then the equipment arrives, gets installed, and the data link drops out every afternoon. Or works fine at the gate but dies 300 metres down the access track.
Coverage maps are a good starting point. They are not a design tool.
Why Coverage Maps Get It Wrong in Remote Australia
Carrier coverage maps are predictions. They’re built from modelling, not from someone standing at your monitoring site with a measurement device.
In remote areas that matters. Hills, ridgelines, vegetation and distance from the nearest tower all change what a device actually sees. A map might show coverage across a whole valley when, in reality, one side has a usable signal and the other has almost nothing.
The maps also don’t tell you much about quality. A device can technically connect and still be unusable because the signal is noisy, congested or bouncing between towers.
For a phone in a ute, that’s an annoyance. For telemetry, SCADA or a monitoring network that needs to report reliably, it’s a real operational risk.
Smartphone Apps Aren’t Much Better
The next step many teams take is walking the site with a phone and a speed test app.
It’s better than nothing, but a phone only sees one carrier, usually one band at a time, and its antenna and radio aren’t designed for engineering measurement. Results change depending on the handset, where it’s held and what the network decides to do at that moment.
You end up with a handful of screenshots, not data you can design a network around.
What Carrier-Grade Measurement Actually Looks Like
This is where purpose-built measurement equipment comes in.
MarchNet works with technology partner Ranlytics and its CERNO carrier-grade cellular measurement platform. CERNO is rugged, portable hardware that can be carried on drive routes or walked to individual sites, capturing engineering-grade RF data across multiple carriers and bands at the same time.
Instead of a single number on a screen, you get detailed measurements of signal strength, signal quality and interference, all tied to GPS location. That data flows into the Ranlytics platform, where it becomes coverage heat maps and site-by-site breakdowns.
Typical measurements include:
- RSRP – how strong the signal is
- RSRQ – how good the signal quality is
- SINR – how much interference and noise is present
- Throughput – what speeds the connection can actually deliver
- Which towers and bands each location is being served by
Measuring 9 Bands at Once
On a recent project in the Northern Territory, MarchNet surveyed a network of remote monitoring sites to work out whether public mobile networks could replace ageing copper infrastructure.
Using CERNO, the team concurrently measured 9 different bands across Telstra and Optus. Every drive route and walk survey captured the full picture across both carriers in a single pass, rather than repeating the same trip for each network or band.
That made a big difference in a remote environment where every extra day in the field adds cost.
The results showed most sites could run reliably on public LTE with the right equipment and external antennas. A handful of locations didn’t have enough signal, and for those MarchNet designed a targeted solar-powered active repeater solution, rather than recommending new towers.
You can read the full story in the Remote Monitoring Network in the NT case study.
Why This Matters Before You Spend Money
Measured data changes the conversation.
Instead of guessing whether a site will work, you know. Instead of over-building a private network everywhere “just in case”, you put infrastructure only where it’s genuinely needed.
A proper coverage survey helps you:
- Decide whether public carriers can do the job
- Choose the right carrier, or use both for failover
- Pick the right antennas and mounting heights
- Identify exactly where repeaters or private LTE are needed
- Avoid expensive rework after equipment is installed
For remote operations, a few days of proper measurement up front is usually far cheaper than months of chasing dropouts later.
Design Studies Built on Real Data
MarchNet combines carrier-grade field measurement with RF design and engineering to deliver design studies for mining, renewable energy, agriculture and critical infrastructure projects across Australia.
Whether the answer ends up being public carrier services, private 4G and 5G networks, satellite or a mix of all three, it starts with knowing what’s really happening on site.
If you’re planning connectivity for a remote site, talk to the team about a coverage survey before you commit to a design.
