We took private 5G to Burning Man

One radio. One antenna. A mast on a trailer hitch, running on sunlight. No grid, no fiber, no carrier — and stock iPhones held video calls three-quarters of a mile across a city of 70,000 people. Here’s exactly how — and what it means for your sites.

Black Rock City, Nevada · Deployed September 1 – 7, 2026 · six days on site
A field report for anyone who owns more property than their carrier covers

1  What we proved

2  How far it actually reached

2.1  Camp to the Man, on a stock iPhone

Black Rock City is a surveyed grid, so we can give you real distances to real landmarks instead of hand-waving. The antenna sat at camp on the E ring at 4:00, pointed across the city at the Man. Two readings, taken on a stock iPhone 17 Pro.

Distances measured against the published 2026 Black Rock City street grid. Signal is what the handset showed. We read bars, not dBm — bar thresholds are carrier-defined and unpublished, and in crowded RF conditions the bar count can track signal quality rather than raw strength.

The video call is the number that counts here, not the bars.

2.2  The honest caveat: one antenna covers a wedge

Here’s the part most vendors leave out. A 90° sector antenna fires into a quadrant, not a circle — we mounted ours at 4:00 and E and aimed it dead center at the Man. So there are two halves to this result:

3  This is not “better WiFi.” Not close.

You’re going to want to compare this to WiFi. Don’t. WiFi is legally forbidden from operating anywhere near this power. Not outgunned — prohibited.

Here’s the whole thing in one picture. Radiated power is what a signal acts like after the antenna focuses it — the way a reflector turns a bulb into a spotlight.

That’s 79× more power. The WiFi bar is drawn a little wider than true scale — at 4 W it would be thinner than a hairline.

And this isn’t about WiFi gear being weak. The FCC simply won’t let it go any higher — 4 W is the ceiling on 2.4 GHz, on 5 GHz, and on 6 GHz. Adding new WiFi bands didn’t raise it.

You can’t buy your way past it either. Bolt a bigger antenna onto a WiFi radio and the rules make you turn the transmitter down by exactly what the antenna gained you. You end up at 4 W every time. So this isn’t a fair fight, and it was never going to be — WiFi isn’t permitted to play at this level.

And power is only half of it. The rest is what you’re allowed to rely on.

For anything that matters, those last two cards beat the power figures. You can’t promise your operations team coverage that runs on spectrum anyone else can walk into. Our spectrum is coordinated and our slice is assigned — which is why it holds up under real traffic, and WiFi doesn’t.

4  What this means for your sites

Off-grid private 5G is ready right now. Not promising, not emerging — deployable today, by a small crew, on hardware you can order.

One radio on a 35-foot mast covers a mile or two of open ground. That’s the whole footprint, and it lands on exactly the property carriers serve worst.

Same story every time: coverage quits where your property gets interesting, and fiber costs more than the problem.

4.1  Will it work at your site?

Straight answer: the playa gave us one advantage — dead-flat terrain. It did not give us a clear path. 70,000 people parked camps, vehicles and art cars across it, and that’s where the excess loss went.

Forget the radius. Radio count comes down to your clutter and your buildings — and an RF survey answers that in a week.

5  The entire build

Two people and a trailer hitch. Every item below is something a normal cell site needs and this one didn’t.

The mast is the Critical Tech Solutions RATT, a field-swappable rapid-deploy unit that drops onto a standard trailer hitch — and that hitch is the whole reason two people can put it up. Guy-wired, ¾″ lag bolts driven into the playa, antenna at about 35 ft. It held 30 mph sustained wind without a single adjustment. Height is the biggest lever you have on coverage, so a mast that sways or walks its anchors takes your coverage with it.

Nothing on the client side was special. Stock iPhones and iPads, Horizon 5G hotspots, and a Peplink BR1 Mini 5G in an external MAX housing, on both eSIM and physical SIM. The iPhones are the whole argument: your network can serve the phone that’s already in your crew’s pocket.

5.1  The brains: Ataya Chorus

A cell network needs more than a radio. It needs the software that decides which devices may join, keeps each one’s traffic private, and sends it out to the internet — the part phone companies run on racks of servers in climate-controlled buildings. Here it ran on Ataya Chorus, built right into the MOSO radio.

That is a big part of why the whole build fit on a trailer hitch. No server rack at camp, no cooling, no engineer typing in settings. We powered the radio up, it found Chorus in the cloud over Starlink, and it set itself up.

Running it was the easy part. Every SIM, eSIM, and device on the network lived in one Chorus dashboard in a web browser. Adding a device meant adding its SIM on a web page — no trip to the radio, no command line. From anywhere with an internet connection we could see who was connected, check how the network was holding up, and change settings.

Secure by design. A device can only join if it carries a SIM we issued, so there is no shared password to leak the way there is with WiFi.

Built for a satellite link. Chorus sends only small control messages up to the cloud; each device’s actual data leaves right at the radio. That keeps Starlink’s capacity for the people on the network instead of for network overhead.

Grows by adding radios. Each new radio finds the network and joins on its own, so covering the rest of a site is a matter of mounting more hardware, not re-engineering the software.

6  Why the playa is the perfect torture test

This wasn’t a stunt. Every condition that makes the playa miserable is a condition that takes real networks down — and the playa runs all of them at once, for six days straight.

The playa is flatter than your site. That’s the only break it gave us — it definitely wasn’t clear of obstructions. See Section 4.1.

7  The numbers, and how we know them

7.1  How 20 watts becomes 316

Four numbers, straight off the equipment. They just add up.

Those four figures add up to 316 watts of radiated power — 79 times what any WiFi access point is allowed to put out.

7.2  Receipts: what we measured vs. what we calculated

Every number here is one of four things: something we saw, something we calculated, something we estimated, or something we never measured at all. We tell you which. We don’t blend them together and hope you can’t tell.

8  The bottom line

One radio. One antenna. A Starlink dish and a battery charged by the sun. Hauled into a desert with no infrastructure of any kind — and stock iPhones made video calls clear across a city of 70,000 people. Six days. No grid. No fiber. No carrier.

And it wasn’t luck. The coverage matches the link budget, which means it’s repeatable — on your site, with your numbers.

So if you’re weighing private cellular for a substation, a campus, or a response capability — the technology isn’t the risk anymore. What’s left is RF design for your specific site, careful engineering around the interconnects, and honest measurement. Ordinary problems. Ours to solve.