RTK corrections without CORSL-Base

Self-converging PPP base station that delivers centimetre-accurate RTK corrections to any drone — without subscribing to an expensive CORS network. Satellite-based precise point positioning, anywhere on Earth.

30-Day Money Back
IP68 Waterproof
Global Shipping
24h Support
2cm
PPP Accuracy
IP68
Waterproof Rating
0
CORS Subscriptions Needed
$2,999
Hardware + 1 Year PPP Service
L-Base — IP68 PPP GNSS
IP68 PPP 2 CM RMS L1 / L2 / L5 NO CORS NEEDED

L-Base

IP68-rated GNSS receiver with built-in PPP processing. Dust-tight, submersible, field-ready.

CORS networks are
expensive and limiting
Traditional RTK

Dependent on CORS

Ongoing costs, limited coverage, infrastructure dependency

  • CORS/NTRIP subscriptions cost hundreds to thousands per year
  • Coverage gaps in rural, remote, or developing regions
  • Accuracy degrades beyond 30–40 km from nearest CORS station
  • Reliant on third-party infrastructure and uptime
  • DJI D-RTK 3 still requires CORS or network RTK for full accuracy
L-Base + PPP

PPP replaces CORS

Satellite-based, global coverage, no infrastructure

  • PPP uses satellite orbit & clock corrections — no local CORS needed
  • Works anywhere on Earth with clear sky view
  • Self-converges to 2 cm RMS — no base station network required
  • No ongoing NTRIP or CORS subscription fees for positioning
  • Broadcasts to any RTK drone: DJI, ArduPilot, PX4
See It In Action
Two minutes
to centimetre
accuracy

Watch L-Base auto-converge via satellite L-Band PPP corrections — no CORS network, no base station network, no internet required. Just place, power on, and fly.

Three steps. Two minutes.
1

Place

Set L-Base on the ground with a clear view of the sky. No tripod needed.

5 sec
2

Power On

Press the button. PPP auto-converges to ITRF2020 centimetre coordinates.

~2 min
3

Fly

RTK corrections stream to your drone automatically. Centimetre accuracy, the entire flight.

10 hrs
Aerial view of mining and construction site — L-Base deployment
Real-World Deployment

Built for the toughest job sites

Mining, construction, agriculture — L-Base delivers centimetre accuracy where CORS networks don't reach.

Mining
Construction
Agriculture
Infrastructure
GPS
L1 · L2 · L5
Galileo
E1 · E5a · E5b
BeiDou
B1 · B2 · B3
GLONASS
L1 · L2
L1 / L2 / L5 CARRIER PHASE
Ground Station

L-Base

IP68 · Tri-Frequency · Multi-GNSS
Phase 1 — PPP Positioning

Compute Absolute Coordinates

Multi-frequency carrier phase eliminates ionospheric delay. Precise orbit & clock corrections resolve ambiguities. Converges in ~2 minutes.

ITRF2020
Global absolute reference frame
Phase 2 — Base Station Mode

Generate RTK Corrections

PPP coordinates locked as base station reference. Generates RTCM 3.x corrections, broadcast as NTRIP stream in real time.

RTCM 3.x
NTRIP correction stream
Radio
No internet · ~10km
4G
NTRIP over cellular · unlimited
RC Link
DJI pass-through · plug & play

RTK Fixed — Full Coverage

DJI Matrice · Phantom 4 RTK · Mavic 3E · ArduPilot · PX4
RTK Fixed · 2 cm RMS · ITRF2020
End-to-End Accuracy
2 cm
ITRF2020 Global Absolute Coordinates
No CORS · No base station network · No infrastructure dependency
Power on anywhere, centimetre RTK everywhere
One device.
Every mission.

Mining & Stockpiles

Fly volumetric surveys over mine sites where CORS coverage doesn't exist. L-Base delivers centimetre-accurate corrections from satellite — calculate stockpile volumes with confidence, even at the most remote pit.

↗ Typical accuracy: 2 cm vertical
🌾

Agriculture & Land Management

Map drainage patterns, plan variable-rate seeding, and verify land boundaries across vast farms. No cellular network needed — L-Base works off-grid in Kazakhstan, Australia, Brazil, or anywhere your fields are.

↗ Coverage: works on any size farm
🏗

Construction & Infrastructure

Monitor earthworks, inspect bridges, and survey road corridors. L-Base provides the RTK corrections that DJI, Autel, and ArduPilot drones need — without an annual CORS subscription eating your project budget.

↗ ROI: saves $1,500+/yr in CORS fees
L-Base vs
DJI D-RTK 3
SpecificationL-Base + PPPDJI D-RTK 3
PositioningPPP — no CORS requiredPPP + Network RTK (CORS-dependent)
CORS subscriptionNot neededRecommended for full accuracy
Non-DJI dronesArduPilot, PX4, RTCM 3.xDJI only
Ecosystem lock-inNone — open platformDJI required
Broadcast linksRadio · 4G · Remote ControllerDJI proprietary
PPP accuracy2 cm±2 cm (with convergence)
CoverageGlobal — anywhere with sky viewLimited by CORS network coverage
WaterproofIP68IP67
Setup time~2 minutes~5 minutes
Hardware priceFrom $2,399$1,699+
Ongoing CORS cost$0$500–2,000+/yr typical
12+
Countries
750+
Devices deployed
2cm
Verified accuracy
98%
Uptime

We dropped our CORS subscription on day one. L-Base just works — even in areas where we had zero network coverage.

Surveying Team Lead — Agricultural Mapping Co.

My students use it for thesis fieldwork. Setup takes less time than explaining what CORS is.

Professor of Geomatics — National University

The ROI was obvious. One device replaced our base station and our CORS subscription. Paid for itself in three months.

Operations Manager — Drone Survey Startup

Built for
the field

IP68-rated. Dust-tight. Submersible. L-Base is a compact GNSS receiver with built-in PPP processing — eliminating your dependency on CORS networks entirely.

Wide landscape

Works Everywhere

No base station network required. Set up in 2 minutes, anywhere on Earth.

Do the math
Traditional (3 years)
$7,500+

CORS subscription $1,500/yr × 3
+ base station hardware

VS
L-Base (3 years)
$2,999

Hardware + 1 year PPP included
Year 2-3: $999/yr

3-year savings
$2,500+
Plus: no coverage gaps, no network dependency, works globally
Hardware &
PPP Service

Buy the hardware. Subscribe to PPP corrections separately, or bundle and save.

Hardware Only

$2,399
L-Base device — PPP subscription sold separately
  • L-Base hardware (IP68)
  • PPP 2 cm RMS — no CORS needed
  • L1/L2/L5 tri-frequency
  • Radio + 4G + RC broadcast
  • Open platform (any RTK drone)
  • All-day battery
  • OTA firmware updates
  • PPP subscription sold separately
Order Hardware

PPP Annual

$999/yr
Correction stream — requires L-Base hardware
  • PPP correction data stream
  • RTCM 3.x corrections
  • Auto-connect to L-Base
  • OTA service updates
  • Save $189/yr vs. monthly
Subscribe Annual

PPP Monthly

$99/mo
Cancel anytime — requires L-Base hardware
  • PPP correction data stream
  • Cancel anytime
  • 30-day money-back guarantee
  • Phone + credit card verification
  • OTA service updates
Subscribe Monthly
GNSS Performance
ConstellationsGPS, GLONASS, BeiDou, Galileo, QZSS, SBAS
Channels1792
PPP Accuracy (H/V)2 cm RMS (convergence: 3 min)
RTK Accuracy (H/V)0.8 cm + 1 ppm / 1.5 cm + 1 ppm
Static Accuracy (H/V)2.5 mm + 0.5 ppm / 5 mm + 0.5 ppm
Update RateUp to 20 Hz
TTFFCold <30s · Warm <5s · Re-acquisition <1s
Tilt Compensation≤2 cm (within 60°), calibration-free
Communication
Cellular4G LTE / WCDMA / GSM (FDD B1/B3/B7/B8/B20/B28, TDD B38/B40)
Internal Radio410–470 MHz UHF, 0.5W/1.0W (TrimTalk, South, Satel, Transparent)
Wi-Fi802.11 b/g/n (Hotspot mode)
Bluetooth4.1
WiredUSB Type-C (OTG supported)
Network ProtocolsNTRIP Client/Server, TCP
System & Data
Operating SystemLinux
Internal Storage8 GB
Data OutputRINEX, NMEA-0183
Differential FormatCMR, RTCM 2.x / 3.x
Electrical
Battery7000 mAh / 7.4V lithium (built-in)
Working TimeUp to 10 hours
Charging15W fast charge (5V 3A), 3 hrs to 90%
External PowerUSB 5–20V
Physical & Environmental
Dimensionsφ132 × 68 mm
Weight≈ 827 g
Operating Temp-40°C to +70°C
Storage Temp-55°C to +85°C
Ingress ProtectionIP68 (dust-tight, waterproof)
Shock Resistance2 m pole drop onto concrete
VibrationMIL-STD-810G
Download Full Datasheet (PDF)
Questions

What does this thing actually do?

It sits on the ground and talks to your drone while you fly. It tells your drone exactly where it is in the sky — accurate to 2 centimetres. That means your aerial survey maps and 3D models come out precise without any extra work.

Do I need to set up ground control points?

You can still use GCPs for checkpoints, but L-Base dramatically reduces how many you need. Many users skip them entirely for routine jobs. That alone can save hours per mission.

Is it hard to set up?

Nope. Put it on the ground, press the power button, wait a couple minutes. That’s it. No apps to configure, no coordinates to type in. It figures everything out on its own.

Will it work with my DJI drone?

Yes — Matrice series, Phantom 4 RTK, Mavic 3 Enterprise, and others. It also works with non-DJI drones like ArduPilot and PX4 builds. Basically any drone with an RTK input.

What if I’m in a remote area with no internet?

That’s actually where L-Base shines. It has a built-in radio link that works without any internet at all. You can fly in the middle of nowhere — mountains, farmland, desert — and still get centimetre accuracy.

How long does the battery last?

All day. One charge gets you through a full day of fieldwork. You can also plug in a USB-C power bank if you need longer.

Can I carry it in my backpack?

Yes — it’s compact and doesn’t need a tripod. Way more portable than the big base stations you’ve probably seen in surveying courses.

Why not just use a CORS network?

CORS subscriptions cost $500–2,000 a year, don’t work everywhere (especially rural areas), and you’re relying on someone else’s network staying online. L-Base gets the same accuracy from satellites directly, so none of those problems apply.

I’m a student — can I afford this?

The bundle is $2,999 for hardware + one year of service. Compare that to a CORS subscription ($500–2,000/yr) plus a traditional base station. For thesis fieldwork or a surveying startup, it pays for itself quickly. There’s also a monthly plan at $99/mo if you only need it seasonally.

What happens if it rains?

Keep working. It’s IP68 rated — fully waterproof and dust-proof. Rain, mud, puddles, no problem.

From the field
Coastal Monitoring · Australia
We survey 40 km of shoreline every quarter to track erosion. Before L-Base, we needed CORS — which meant no coverage on half our sites. Now we set up in two minutes on the beach and fly. The data consistency between repeat surveys is exactly what our coastal engineers need.
James K.
Senior Surveyor — Environmental Consultancy
40 km
Coastline surveyed quarterly without CORS
Solar Farm Planning · Kazakhstan
Our site is 200 km from the nearest CORS station. Traditional RTK was simply not an option. L-Base gave us centimetre-accurate orthomosaics for panel layout planning — we saved three weeks of ground survey work on a single project.
Daniyar M.
Project Engineer — Renewable Energy Developer
3 weeks
Ground survey time saved per project

Ditch CORS.
Fly with PPP.

Satellite-based centimetre positioning for any drone. No CORS network. No lock-in.

Order L-Base
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L-Base + 1 Year PPP $2,999 Order Now