Contractors come and go
Access is needed only for specific work, but shared credentials remain with former participants.
For construction projects
RTK corrections for your site teams
Connect your base or relay an external NTRIP stream. Deliver corrections to survey crews, contractors, and compatible machinery, with access you control.
- Separate access for each crew
- Streams organized by project
- Connection status in one dashboard
No credit card required. Relay included in the trial.
Site architecture
From your source to every crew
Choose your correction source
Your base station
RTCM
or
External NTRIP stream via Relay
RTCM
YouCORS
NTRIP hosting and team access
Survey crews
Contractors
Compatible machinery
Assign each crew the streams it needs. Revoke a contractor’s access without changing everyone else’s credentials.
Relay is available in Trial and Enterprise. See how Relay works
Your correction source, your team access: YouCORS delivers RTCM streams from your base or an external NTRIP source you are authorized to use. You choose the source; we provide hosting and access management.
Complexity on a large site
Project participants change faster than shared access settings
Every stage introduces new contractors, work zones, and devices. Without one access model, it is difficult to revoke credentials safely or locate the source of a problem.
One login cannot be revoked safely
Changing a shared password affects surveyors, contractors, and machinery at once.
Teams use different settings
Inconsistent stream names and connection settings make it harder to select the correct source for each work zone.
The work area keeps expanding
New zones and stages require a clear structure for mountpoints and clients.
The primary source is unavailable
Without a prepared procedure, teams do not know which stream and settings to use next.
The failure is not isolated
The correction source, internet, caster, and rover are investigated at the same time without a clear owner.
Responsibility is fragmented
The owner, general contractor, and subcontractors define RTK infrastructure boundaries differently.
Connect one crew, then scale
From a correction source to your field teams
Choose the source, organize streams by project, and give every crew its own access.
- 1
Choose your correction source
Use a configured site base or an external NTRIP stream suitable for the work area and permitted for your use.
- 2
Connect the stream
Publish RTCM from your base or use Pull Relay to receive an external stream. Relay is included in Trial and Enterprise.
- 3
Separate mountpoints
Use clear names organized by project, work zone, or construction stage.
- 4
Give each crew its own access
Create separate NTRIP client credentials for permanent staff and contractors.
- 5
Limit access
Assign streams by role and disable clients when the relevant stage is complete.
- 6
Check connections and data
Monitor source and rover sessions in the dashboard, then verify correction reception on the equipment.
YouCORS does not establish a common coordinate system by itself. Accuracy depends on correct base coordinates, survey control, RTCM format, and equipment configuration.
Project participants
Every organization receives only the access it needs
Separate permanent users, temporary contractors, and compatible machine-control systems while retaining centralized management.
Owner's survey team
Permanent access to core streams and responsibility for the survey control.
General contractor
Access for coordinating internal crews and assigned work areas.
Subcontractor crews
Separate clients limited to the duration and zone of specific work.
Machine-control systems
RTK/NTRIP-compatible terminals connected after their parameters are validated.
As-built survey team
Access to the assigned stream while completed work is measured and documented.
Technical inspection
Agreed access for independent verification and stage acceptance.
Access by project stage
The connection roster changes with the project
Define the roles, required stream, and access end point for every stage in advance.
- 01
Site preparation
- Who connects
- Survey team, general contractor, and grading crews.
- When to revoke access
- Temporary crews after layout and preparation are complete.
- 02
Earthworks
- Who connects
- Surveyors, earthwork contractors, and compatible machine control.
- When to revoke access
- Contractors when the earthwork package is closed.
- 03
Utilities
- Who connects
- Installation crews, surveyors, and technical inspection.
- When to revoke access
- Installation contractors after the as-built survey for their zone.
- 04
Roads and hardscape
- Who connects
- Road contractors, machinery, and the survey team.
- When to revoke access
- When work in the assigned zone is complete.
- 05
Structural installation
- Who connects
- Erection crews, surveyors, and inspection staff.
- When to revoke access
- Subcontractors after the relevant stage is accepted.
- 06
As-built survey
- Who connects
- The survey team and designated contractor specialists.
- When to revoke access
- After as-built documentation is delivered and verified.
- 07
Handover and operations
- Who connects
- The operator and designated archive users.
- When to revoke access
- All project and contractor clients are reviewed and disabled.
Example configuration
2 correction streams, 8 rovers, 10 contractor clients
For example, use a base stream for one work zone and an authorized external stream through Relay for another. Assign crews the stream suitable for their work area.
- correction streams
- 2
- permanent rovers
- 8
- temporary clients
- 10
| Stage | Roles | Stream | Access period | Owner |
|---|---|---|---|---|
| Earthworks | Surveyors, machinery | SITE-EARTH | Until stage close | Lead surveyor |
| Utilities | 2 subcontractors | SITE-UTIL | 90 days | General contractor |
| Roadworks | Crew and machinery | SITE-ROAD | Work schedule | Project engineer |
| As-built survey | Survey team | SITE-ASBUILT | Permanent | Project owner |
This is an example access matrix, not a universal sizing rule. The final design depends on project scale, participants, work zones, equipment, and redundancy requirements.
Reliability and ownership
Diagnose the correction chain by control zone
YouCORS gives you one place to manage correction streams, access, and connections. Field results depend on the source, its coverage, and the receiving equipment.
A caster cannot correct wrong base coordinates, obstructed sky, radio interference, or incompatible RTCM. Assign an owner and diagnostic procedure to every link.
- Zone 1
Correction source
Base coordinates, observations, RTCM format, and coverage of the work area. For Relay, verify the upstream stream’s suitability.
- Zone 2
Source connection
The base’s internet connection or the upstream NTRIP service, credentials, and stream availability.
- Zone 3
NTRIP caster and server
Source reception, mountpoint, authorization, and delivery to clients.
- Zone 4
Client parameters
Host, port, mountpoint, credentials, and RTCM compatibility.
- Zone 5
Field conditions
Sky visibility, interference, satellite geometry, and rover or machine settings.
Site launch plan
Deploy the infrastructure before contractors mobilize at scale
Validate the technical chain and access rules with one crew, then connect the remaining participants stage by stage.
- 1
Step 1
Assign an owner for the site's RTK infrastructure.
- 2
Step 2
List your correction sources, work zones, and project participants.
- 3
Step 3
Create a trial caster and connect one base or external stream.
- 4
Step 4
Run a field test with one survey crew.
- 5
Step 5
Prepare one standard connection and diagnostic guide.
- 6
Step 6
Connect contractors through individual clients by stage.
- 7
Step 7
Design and validate a fallback procedure.
- 8
Step 8
Review active access and responsible owners regularly.
Launch resources
Prepare the site's technical procedure
Complete guide to RTK GNSS
Understand the base, rover, corrections, and conditions required for RTK.
Read guideManaging RTK field crews
Individual clients, groups, and temporary access for project teams.
Read guideConnect an external stream with Relay
Receive an upstream NTRIP stream and distribute it through your local client credentials.
Read guideWhy RTK Fix fails
Isolate problems across the base, transport layer, and receiver.
Read guideFrequently asked questions
Before launching RTK on a construction project
Do we need our own base station on the construction site?
No. You can publish corrections from your own base or use Pull Relay to receive an external NTRIP stream you are authorized to redistribute. Relay is included in Trial and Enterprise. The source must be suitable for your work area and equipment.
Can equipment from different manufacturers connect?
Yes, when equipment supports compatible NTRIP and RTCM versions. Validate every model, firmware version, and operating scenario before connecting at scale.
How do we provide access to a subcontractor?
Create a separate client, assign the required mountpoint, and disable the credentials when work is complete. Other participants do not need to be reconfigured.
Can one caster serve multiple construction projects?
Projects can be separated through mountpoints, clients, and groups. The choice between one or several casters depends on scale, ownership, regions, and isolation requirements.
How should we prepare a backup correction stream?
Define the backup source, mountpoint, client settings, and transition procedure, then test them on real equipment. Do not assume failover is automatic unless the configuration explicitly provides it.
Who is responsible for correct base coordinates?
The designated project survey team remains responsible. YouCORS transports the received stream and does not validate survey control or station coordinates.
What if the client is connected but RTK Fix is unavailable?
Check the correction source, RTCM format, internet, caster status, client permissions, and receiver conditions. With Relay, also check upstream coverage and stream suitability. A caster connection alone does not guarantee RTK Fix.
Does YouCORS supply RTK network coverage?
YouCORS provides NTRIP hosting and stream delivery. You provide a base stream or arrange access to an external source. Pull Relay receives one upstream stream and distributes the same stream to connected rovers; it does not generate per-rover VRS corrections.
Discuss your configuration
Choose the setup that fits your teams
Tell us about your correction sources, crews, and equipment. We can help you discuss the setup for your project.
Ready to connect your first crew?
Start a free 3-day trial with one base or an authorized external stream. No credit card required. Relay is included in the trial.
Start your free trial