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GPS & GNSS Systems

Machine control made easyNo complicated installationWireless. Portable. Precise.Grade with confidenceTechnology designed for operatorsOne system, multiple machinesDesigned for the machines you already ownFast, easy self-installAuthorized iDig dealerFamily owned and operatedCall 1-877-866-5721Machine control made easyNo complicated installationWireless. Portable. Precise.Grade with confidenceTechnology designed for operatorsOne system, multiple machinesDesigned for the machines you already ownFast, easy self-installAuthorized iDig dealerFamily owned and operatedCall 1-877-866-5721

GNSS / GPS

Precision Positioning for a
More Productive Job Site

Centimetre-accurate, real-time positioning for machine control, site layout, grading and stakeout — from an authorized iDig dealer who answers the phone.

Shop GPS & GNSS systems → Call 1-877-866-5721

The technology

What is GNSS / GPS?

GNSS — Global Navigation Satellite System — uses a network of satellites to deliver precise positioning data anywhere on the job site. GPS is the American part of that network; GNSS is all of it at once.

With RTK corrections, GNSS gives you centimetre-level positioning, so crews work faster, cut rework and get the job done right the first time.

iDig builds that technology into machine control and site positioning tools designed for real job-site use — the same receiver works on the machine or on a rover pole.

0.8 cm
Horizontal accuracy
1,400+
Signals tracked
30°
Pole tilt corrected
34 hr
Battery as a rover
iDig GNSS machine control on an excavator and skid steer with the SpotMan receiver, rugged tablet and wireless sensors
Grade elevation 285.4 m RTK fixed · 0.8 cm H · 1.5 cm V

Choose your system

Base, or base and rover

The same SpotMan receiver does both jobs. One on the machine takes corrections and drives grade. A second one becomes your own base station and broadcasts corrections over UHF, so you are not paying a monthly correction service. Add the rover kit and the receiver comes off the machine to shoot points, stake out and check volumes.

iDig SpotMan CT140T GNSS receiver with tilt compensation, the unit that serves as machine receiver, survey rover or RTK base station
The base

iDig SpotMan GNSS Receiver

The receiver on its own. Everything a machine needs and nothing more — and a second one converts into your own base station.

CT140T

View the product → Base and rover

iDig SpotMan GNSS Rover Kit

The same receiver plus the 2 m survey pole, rugged 8″ Android tablet, iPoint software, quick release, UHF antenna and hands-free backpack.

CT140T-K

View the product →

Questions

GPS and GNSS, answered

What is the difference between GPS and GNSS?
GPS is the United States satellite constellation. GNSS is the umbrella term for all of them together — GPS, GLONASS, Galileo, BeiDou and QZSS. A GNSS receiver sees far more satellites than a GPS-only one, which is what keeps it working between buildings, under tree lines and in a trench.
Do I need a base station, or will a correction service do?
Either works. The receiver has a SIM slot for 4G so it can pull RTK corrections from a network service, and it has a UHF radio for local corrections. If you buy a second receiver and run it as your own base, there is no monthly correction service at all and it works where there is no cell signal.
When does an iDig machine control system need GPS?
Always for 2D+ and 3D, because both take their height reference from satellites. Plain 2D is laser driven and needs no GPS. A skid steer only runs 2D+ or 3D, so it always needs a base station or rover. An excavator can run 2D off a rotary laser and steps up to 2D+ when you add GPS.
How accurate is it really?
0.8 cm horizontal and 1.5 cm vertical, the figures iDig publishes for the SpotMan, tracking more than 1,400 signals at once. For grade work that is the tier you need — network solutions that quote around 10 cm are not accurate enough to set grade from.
Do I have to hold the pole level?
No. A 200 Hz inertial sensor corrects up to 30 degrees of tilt, needs no calibration and is not thrown off by magnetic interference. Put the pole tip on the point, even against a wall or down in a trench, and shoot it.
Can one GPS system run two machines at once?
No. One GPS system covers one machine at a time. You move the receiver from machine to machine the same way you move an iDig system. Running two machines at the same time takes a second GPS system.
Do I need an iDig system to use the rover kit?
No. The rover kit is a complete survey and layout tool on its own — shoot points and lines, stake out from a DXF, calculate areas and volumes on the tablet, with no machine control involved. If you also run an iDig CONNECT system, the same receiver serves both.
Will it survive a job site?
The receiver is IP67 rated for dust and temporary immersion and is built to take a pole drop from 2 metres. The included tablet is IP68 and rated for 1.5 m of water for up to 30 minutes.
Got questions? Give us a call.
1-877-866-5721
Family owned and operated · Authorized iDig dealer
www.Contractors-Tools.com
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