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Antenna Selection GNSS Antenna Selection Guide for RTK, CORS and Monitoring The GNSS antenna is a critical part of RTK rover, base station, CORS, VRS and deformation monitoring projects. Use this guide to compare signal support, installation environment, multipath risk, mounting, cable length and receiver compatibility. Request antenna support View GNSS antennas Author: TOKNAV GNSS Solution Team Reviewed by: TOKNAV Product and Field Application Team Last Updated: July 2026 Download the GNSS Antenna PDF Checklist Get a printable antenna selection checklist for receiver compatibility, signal support, mounting, multipath risk, cable planning and fixed-station installation. Name Company Email Country Project note Website Send me the PDF checklist By submitting, you agree that TOKNAV can contact you about this resource and related project support. A receiver can only work with the signal quality it receives. In open field RTK, the antenna choice affects setup stability and repeatability. In CORS, VRS and deformation monitoring projects, antenna installation can affect long-term data quality, multipath behavior and maintenance risk. This guide helps buyers compare antennas for projects using TOKNAV GNSS receivers, CORS receivers such as NET660i, base station workflows and reference station antennas such as TCA920. 1. Match the Antenna to the Application Application Antenna priority Related page RTK rover surveying Portable installation, stable signal reception, compatibility with receiver workflow. GNSS Receiver Local RTK base station Clear sky view, stable mount, cable plan and signal reliability for the project area. VRS vs RTK Base Station CORS or VRS station Permanent mounting, multipath suppression, weather exposure, grounding and maintenance access. CORS Station Checklist Deformation monitoring Stable installation, repeatable signal environment, protected cable routing and reliable data continuity. Monitoring Guide 2. Check Signal, Mounting and Multipath Conditions Signal requirements Confirm receiver model and supported constellations/frequencies. Confirm whether the project needs RTK, CORS, VRS, monitoring or mixed use. Check whether future receiver upgrades should be supported. Installation environment Open sky visibility and possible obstructions. Nearby metal, walls, water, machinery or reflective surfaces. Wind, rain, dust, cable exposure and maintenance access. Cable and accessory plan Cable length, connector type and protection method. Mounting pole, monument, enclosure and grounding. Lightning protection and service replacement plan. 3. When to Consider a Choke Ring Antenna Choke ring antennas are commonly considered for fixed reference station, CORS, VRS and high-precision monitoring projects because they are designed to help reduce multipath effects in demanding installation environments. Consider a choke ring antenna such as TCA920 when the project involves a permanent or semi-permanent station, high-value correction data, long-term observation, or an environment where reflected signals may affect data quality. TCA920 is a relevant option for fixed reference station, CORS, VRS and monitoring projects where multipath control and stable signal reception are important. 4. Information to Send for Antenna Recommendation Receiver model and project type. Country, installation environment and site photos. Mounting method, cable length and enclosure requirements. Required signals, data workflow and accuracy target. Whether the antenna is for rover, base station, CORS, VRS or monitoring use. Internal Planning Links Download antenna PDFs View GNSS case studies Plan VRS infrastructure Ask TOKNAV for antenna selection FAQ: GNSS Antenna Selection Is the antenna as important as the GNSS receiver? Yes. The antenna affects the signal quality received by the system, especially in reference station, CORS, VRS and monitoring projects where long-term stability matters. When should I use TCA920? TCA920 is a relevant option to evaluate for reference station, CORS, VRS and monitoring installations where multipath suppression and stable receiving performance are important. What information is needed to recommend an antenna? Send the receiver model, project type, installation photos, mounting method, cable length, required signals and accuracy target. Can one antenna fit all projects? No. Rover, base station, CORS and monitoring projects have different installation and signal requirements. The antenna should match the workflow and environment. Request GNSS Antenna Selection Support Send your receiver model, project type, site photos, cable plan and required signals. TOKNAV can help compare antenna and accessory options for your GNSS workflow. Contact TOKNAV View TCA920

CORS / Reference Station CORS Station Setup Checklist for GNSS Reference Networks Use this checklist when planning a GNSS CORS station, VRS reference network or permanent RTK correction site. It covers the site, receiver, antenna, power, communication, testing and maintenance details that should be confirmed before quotation and installation. Request CORS configuration View VRS Solution Author: TOKNAV GNSS Solution Team Reviewed by: TOKNAV Product and Field Application Team Last Updated: July 2026 Download the CORS/VRS PDF Checklist Get a printable CORS and VRS station planning checklist for site selection, receiver and antenna choice, power, communication, testing and maintenance handover. Name Company Email Country Project note Website Send me the PDF checklist By submitting, you agree that TOKNAV can contact you about this resource and related project support. A good CORS station is not only a receiver on a roof. For reliable network RTK, VRS, monitoring or reference-station operation, the project team must control the station environment, antenna installation, data communication, power continuity and maintenance workflow. This checklist is written for survey organizations, distributors, system integrators and infrastructure owners comparing products such as NET660i, NET660, tBase and TCA920. NET660i is a compact starting point for CORS, reference station and augmentation-system planning. NET660 supports reference station infrastructure where stable GNSS data output and network workflow matter. 1. Confirm the CORS Station Purpose Project role Single permanent reference station for local RTK users. Multi-station CORS network for city or regional correction coverage. VRS network RTK service for multiple rover users. Reference data source for monitoring, agriculture or machine control. Buyer inputs to collect Country or region, coverage area and expected rover users. Station quantity and whether the network will expand later. Expected correction method, data format and service workflow. Target applications: surveying, construction, monitoring, agriculture or mixed use. 2. Select a Stable Station Site Site selection is the first technical filter. A receiver with strong tracking still needs an installation point with clear sky visibility and a stable monument or mounting structure. Choose a location with open sky view and limited obstruction above the antenna. Avoid reflective surfaces, metal structures, walls, large machinery and high-voltage interference where possible. Confirm that the mounting point is stable and not affected by vibration or building movement. Check access for maintenance, cable routing, grounding and weather protection. Document the site with photos, coordinates, elevation, nearby obstacles and planned cable length. 3. Choose Receiver and Antenna Configuration Component Selection question TOKNAV starting point CORS receiver Does the project need permanent reference station operation, network communication and stable GNSS data output? NET660i or NET660 Base station receiver Is this a local base-rover workflow rather than a permanent CORS network? tBase GNSS antenna Does the site need multipath suppression and stable reference station signal reception? TCA920 or another suitable TOKNAV GNSS antenna Accessories What cable, mounting, lightning protection, enclosure and power accessories are required? Resource Center and project recommendation 4. Power, Communication and Data Workflow Checklist Power Main AC or DC power source. Backup power or UPS requirement. Grounding and lightning protection plan. Power stability during storms, outages or remote operation. Communication Ethernet, cellular, WiFi or other data link availability. Static IP, server access or Ntrip workflow requirements. SIM card, router, antenna and signal strength if cellular is used. Remote management and troubleshooting access. Data Required data format and correction service workflow. Sampling rate and storage requirements. Monitoring dashboard or control center needs. Rover user access and account management plan. 5. Installation Acceptance Checklist Receiver firmware, settings, station name and coordinates are documented. Antenna mounting is stable, level, protected and photographed. Cables are weather protected, labeled and routed safely. Power supply and backup plan are tested. Communication uptime is tested under normal operating conditions. Correction data output is checked with a rover or downstream workflow. Station logs, photos and maintenance notes are stored for handover. Internal Planning Links VRS vs RTK Base Station GNSS Antenna Selection Guide Compare GNSS Receivers View Case Studies FAQ: CORS Station Setup Which receiver should I start with for a CORS station? NET660i and NET660 are relevant starting points for CORS and reference station projects. The final selection should confirm station role, communication, data output and environment. Does a CORS station need a choke ring antenna? Many reference station projects benefit from an antenna designed for stable signal reception and multipath suppression. TCA920 is one TOKNAV option to evaluate for this role. What details should I send before asking for a quote? Send country, coverage area, station count, installation photos, power condition, communication plan, receiver preference, antenna environment and expected rover users. How is this different from a local RTK base station? A local RTK base station usually supports one project or jobsite. A CORS or VRS network is planned for permanent reference data, broader coverage and multiple users. Request CORS Station Configuration Support Send your country, station quantity, coverage target, antenna environment, power condition and communication plan. TOKNAV can help compare receiver, antenna and accessory options. Contact TOKNAV Download resources

GNSS Correction Guide VRS vs RTK Base Station: Which Correction Method Fits Your Project? Compare VRS network RTK and local RTK base station workflows for surveying, CORS, monitoring and construction projects, with practical product paths for NET660i, NET660, tBase and GNSS antennas. Discuss CORS/VRS Project Download GNSS resources Author: TOKNAV GNSS Solution Team. Reviewed by TOKNAV Product and Field Application Team. Last updated: July 2026. When a surveying team, construction contractor, CORS operator or system integrator plans a high-precision GNSS project, one of the first questions is simple but important: should the project use a local RTK base station or a VRS network RTK workflow? Both methods can support centimeter-level positioning when designed and operated correctly, but they are not the same. A local RTK base station is often practical for a single jobsite or short-term project. A VRS network is better suited to wider-area correction coverage, shared rover users and long-term infrastructure. Local RTK base workflows usually start with one base receiver and one or more rover receivers. VRS and CORS workflows use multiple reference stations and correction distribution for wider coverage. What Is a Local RTK Base Station? A local RTK base station is a GNSS receiver installed at a known point. It sends correction data to one or more rover receivers by radio, network connection or another supported data link. The rover uses the correction data to improve positioning accuracy for field work. Common Applications Construction layout and stakeout. Topographic survey on a defined project site. Field work where public or private network RTK coverage is unavailable. Short-term survey projects that need local control. Dealer demonstration kits and training workflows. TOKNAV Product Path TOKNAV tBase can support base-rover workflows, while RTK rovers such as T50Pro, T40Pro, T20Pro and T10Pro can be selected according to field needs. What Is a VRS Network RTK Workflow? A VRS network RTK workflow uses multiple reference stations and network correction processing to support rover users across a wider planned area. Instead of relying on one local base station for one project area, the network collects data from several reference stations and provides corrections through a correction service workflow. Best-Fit Projects Regional or city-level correction coverage. Multiple rover users working in different locations. Stable infrastructure for surveying, monitoring, agriculture or machine positioning. A correction service managed by an organization, distributor, agency or system integrator. Long-term operation rather than one short field job. TOKNAV Product Path TOKNAV VRS Solution connects CORS/reference station receivers, GNSS antennas, data communication and project planning support for this kind of infrastructure. Quick Comparison: VRS Network RTK vs Local RTK Base Decision factor Local RTK base station VRS network RTK Best fit One jobsite, one team or short-term project area. Wider-area correction coverage with multiple users or long-term operation. Infrastructure One base receiver, rover receivers and data link. Multiple reference stations, antennas, communication and correction service workflow. Setup complexity Lower. Good for project teams that need fast field deployment. Higher. Requires planning for station locations, communications, server/workflow and maintenance. Scalability Limited to local project needs and data-link condition. Better for many rover users and larger coverage areas. Typical TOKNAV products tBase with RTK rover receivers such as T20Pro, T10Pro, T40Pro or T50Pro. NET660, NET660i, TCA-series antennas such as TCA920 and VRS/CORS project support. When Should You Choose Each Method? Choose a Local RTK Base Station When The project is limited to one site. The work period is temporary. Network RTK coverage is weak or unavailable. The team needs direct control over the correction source. The buyer wants a package that is easier to train and deploy. Choose VRS or CORS Infrastructure When Many users need correction access across a planned region. The project needs long-term reference station operation. Correction data must be distributed by network workflows such as Ntrip. The solution may support surveying, monitoring, agriculture or machine control together. The buyer is building a correction service or infrastructure system. Questions to Answer Before Requesting a Quote For a Local RTK Base Station Package What is the application: surveying, construction, road, GIS or training? How large is the project area? Will correction data use radio, network or another link? How many rover receivers are needed? What battery, controller, software and accessory needs should be included? For a VRS or CORS Project Which country or region needs coverage? How many reference stations are planned? What are the station installation environments? What antenna type and mounting conditions are expected? How will data communication, power supply and server workflow be handled? Recommended TOKNAV Product Paths Project need Recommended starting point Next action RTK surveying with local correction tBase plus RTK rover receivers. Request a base-rover package recommendation. CORS or VRS infrastructure NET660i, NET660 and suitable antennas. Share station count and coverage plan. Reference station antenna selection TCA920 or another TOKNAV GNSS antenna. Send receiver model, mounting environment and required signals. Monitoring and long-term infrastructure GNSS Deformation Monitoring with receiver and antenna planning. Send monitoring point quantity, site condition and data interval needs. Next Planning Resources After comparing VRS network RTK and a local RTK base station, use these resources to move from correction method selection to station design, antenna selection, proof review and inquiry preparation. CORS Station Setup Checklist GNSS Antenna Selection Guide GNSS Deformation Monitoring Guide TOKNAV Case Studies Resource Center Contact TOKNAV FAQ: VRS vs RTK Base Station Is VRS always better than a local RTK base station? No. VRS is better for wider-area network correction coverage and many users, while a local RTK base station can be simpler and more practical for one project site or a temporary field job. Which TOKNAV receiver should be used for CORS or VRS projects? NET660 and NET660i are relevant starting points for CORS and reference station projects. The final choice should be confirmed by station design, data link, antenna environment and project requirements. Which TOKNAV receiver should be used as a local base station? tBase is a practical starting point for base-rover RTK workflows. Pair it with suitable TOKNAV rover receivers according

Case Studies TOKNAV GNSS Case Studies: CORS, Monitoring, USV and Robots Real-world and publicly usable TOKNAV application stories for CORS/VRS planning, deformation monitoring, sports field marking robots, hydrographic survey, agriculture and machine control. Each case summarizes the country or buyer context, equipment, workflow, buyer result and next step for similar projects. Request a similar solution View resource center Customer names are kept anonymous unless already approved for public use. Where a public customer name or exact site is not approved, the case is presented as an application case with buyer context, equipment path and verifiable planning outcome instead of invented names or unsupported claims. Priority Application Cases France: RTK Base-Rover Road Resurvey Country: France Industry: Road surveying and engineering resurvey Equipment: TOKNAV GNSS base-rover kit, RTK rover workflow, UHF plus 4G fallback communication Challenge: A rural road resurvey team faced a tight deadline, mixed open farmland and tree-lined sections, and unstable cellular coverage. Workflow: The team set a fixed base station on a certified control point with open sky view, then used UHF where cellular coverage was weak and 4G fallback across open sections. Result: The team achieved consistent centimeter-level accuracy, avoided rework and finished the 12 km road project two days ahead of schedule. Read the source application story Philippines: Tboat USV Hydrographic Survey and Monitoring Country: Philippines Industry: Hydrographic survey, bathymetry and water quality monitoring Equipment: Tboat10, Tboat20, RTK positioning, echo sounder and water-quality payload options Challenge: Local teams needed safer and more repeatable water survey workflows for coastal shallow water, rivers and remote island conditions. Workflow: Tboat USVs supported automatic route planning, real-time video/data feedback, RTK positioning and flexible payload integration for survey and monitoring tasks. Result: Philippine users reported stable field performance, accurate depth data, easier transport and lower manual risk compared with traditional boat-based workflows. Read the source application story RTK and GNSS field cases should connect product setup, communication method and measurable project result. Monitoring and infrastructure cases should document site condition, point layout, data workflow and reporting needs. CORS/VRS Infrastructure: Reference Station Planning Case Country: Project country to be confirmed by buyer Industry: CORS, VRS, reference station and network RTK infrastructure Equipment: NET660, NET660i, tBase, TCA920 and station accessories Challenge: Buyers often request a CORS/VRS quote before confirming station count, antenna environment, communication, power and expected rover users. Workflow: TOKNAV first collects country, coverage area, station quantity, receiver preference, antenna environment and data communication plan. Result: A clearer station plan helps the buyer compare receiver, antenna, server/workflow and maintenance requirements before procurement. Use the CORS station setup checklist Deformation Monitoring: Dam, Slope and Infrastructure Planning Case Country: Buyer-defined infrastructure site Industry: GNSS deformation monitoring for dams, slopes, mines, bridges and buildings Equipment: NET660i, TCA920, monitoring devices, power and communication components Challenge: Monitoring buyers need to define point quantity, reference points, accuracy target, data interval, power, communication and alert workflow before hardware selection. Workflow: TOKNAV uses a project intake checklist to connect site photos, point layout and reporting requirements with receiver, antenna and communication planning. Result: The buyer can move from a broad monitoring request to a clearer bill of materials and integration discussion. Use the monitoring planning guide Sports Field Marking Robot: Soccer and Multi-Sport Venue Case Country: Venue or contractor market to be confirmed by buyer Industry: Sports facility construction, campus maintenance and field line marking Equipment: TR10Pro sports field marking robot with GNSS/RTK positioning and digital field templates Challenge: Venues and contractors need repeatable soccer, football, lacrosse, baseball and custom training layouts with less manual measuring and rework. Workflow: Operators choose a field template, confirm site conditions, prepare paint and RTK correction, then run a repeatable robotic marking path. Result: Facilities can standardize line marking quality and make multi-field preparation more predictable. View the TR10Pro field marking robot Agriculture and Machine Control: Field Leveling and Guidance Case Country: Farm, contractor or dealer market to be confirmed by buyer Industry: Precision agriculture, land leveling, dozer guidance and excavator guidance Equipment: TAG66, TAG88, TMC10, TMC20 and compatible GNSS receiver workflows Challenge: Dealers and project teams need to match steering, land leveling or machine control hardware with vehicle type, worksite condition and accuracy target. Workflow: TOKNAV collects crop or operation type, machine model, field or construction environment, correction method and expected deployment quantity. Result: Buyers receive a clearer product path before quotation instead of comparing unrelated agriculture and construction positioning products. View GNSS land leveling Additional Public Proof Story China, Hangzhou: Heritage Building Digitalization and Crack Discovery Country: China Industry: Heritage conservation, building digitalization and 3D mapping Equipment: TOKNAV TSR20 handheld LiDAR scanner with SLAM / RTK-SLAM workflows Challenge: A Qing Dynasty residence in Hangzhou required detailed digital documentation to support restoration planning. Workflow: TSR20 point clouds were combined with historical archive information to reconstruct building evolution and inspect structural details. Result: The scan revealed hidden structural cracks and provided a data foundation for restoration planning. Read the source application story Need to Turn a Project Into a Case Study? Best fit: Projects with approved photos, site context, product list and measurable result. Useful evidence: Field photos, screenshots, point layout, route map, survey output, monitoring graph or acceptance notes. Publishing rule: TOKNAV can keep customer names anonymous unless public approval is available. Submit a project for case study support Case Study Comparison Case Country Industry Equipment Buyer result RTK road resurvey France Road surveying GNSS base-rover kit, RTK rover, UHF/4G workflow Centimeter-level accuracy and 12 km project completed two days ahead of schedule. Tboat hydrographic survey Philippines Hydrographic survey and water monitoring Tboat10, Tboat20, RTK positioning and payload integration Stable field performance, safer water survey workflow and easier daily deployment. Heritage building digitalization China Heritage conservation and 3D mapping TSR20 handheld LiDAR scanner Hidden cracks identified and restoration planning supported by point cloud data. CORS/VRS station planning Buyer-defined Reference station infrastructure NET660, NET660i, tBase, TCA920 Clearer receiver, antenna, communication and maintenance plan before quotation. Deformation monitoring planning Buyer-defined Dams, slopes, mines, bridges and buildings NET660i, TCA920, monitoring devices Monitoring points, accuracy, data interval

Resource Center TOKNAV GNSS Receiver Datasheets, Brochures and Buying Resources Download TOKNAV brochures, product datasheets, solution documents and buyer checklists for RTK surveying, CORS/VRS infrastructure, GNSS antennas, deformation monitoring, rugged GIS and positioning solution projects. Request model recommendation Compare GNSS receivers If you are comparing models or preparing a project quotation, send your application, country, required accuracy, correction method and target product family to TOKNAV for model selection support. Implementation Guides and Project Checklists Use these high-intent guides before requesting a quote. The CORS/VRS, deformation monitoring and GNSS antenna guides now include PDF checklist request forms so the sales team can follow up with the right project context. CORS Station Setup Checklist Plan a reference station from site selection through receiver, antenna, power, communication, installation and maintenance. Includes a gated downloadable PDF checklist. Open the CORS checklist and PDF request form GNSS Deformation Monitoring Guide Prepare monitoring points, reference points, receivers, antennas, data intervals, power and reporting workflows for infrastructure projects. Includes a gated downloadable PDF checklist. Open the monitoring guide and PDF request form GNSS Antenna Selection Guide Compare antenna choices for RTK rover, base station, CORS/VRS and long-term monitoring installations. Includes a gated downloadable PDF checklist. Open the antenna guide and PDF request form TOKNAV Case Studies Review country, industry, equipment, workflow and result examples before preparing a similar GNSS, RTK, USV or LiDAR project. View case studies GNSS Receiver Brochures and Datasheets Start here if you need RTK rover receivers, base station receivers, CORS receivers or a complete receiver package for surveying and construction workflows. GNSS Receiver Brochure T50Pro GNSS Receiver PDF T40Pro GNSS Receiver PDF T20Pro GNSS Receiver PDF T10Pro GNSS Receiver PDF NET660i CORS GNSS Receiver PDF NET660 GNSS Receiver PDF tBase GNSS Base Station Receiver PDF Solution Documents CORS, VRS and Monitoring These resources help project owners, distributors and system integrators prepare reference station, correction service and monitoring projects. Solution Brochure VRS Solution page CORS Station Setup Checklist GNSS Deformation Monitoring page GNSS Deformation Monitoring Guide Agriculture, Machine Control and USV Use these pages when the project involves land leveling, dozer guidance, unmanned surface vehicles or machine positioning workflows. GNSS Land Leveling Solution Machine Control Solution Unmanned Surface Vehicle Solution VRS and CORS solution resources for correction service planning. Field application resources for surveying, monitoring and infrastructure projects. GNSS Antennas, Accessories and Field Collection GNSS Antennas GNSS Antennas Brochure TCA920 Choke Ring GNSS Antenna PDF GNSS Antenna Selection Guide GNSS Antenna category Accessories Accessories category Accessories Brochure Rugged GIS Rugged and GIS Brochure P8/P8Pro Portable RTK Receiver PDF Rugged and GIS category Buyer Checklists RTK Receiver Selection Application: surveying, construction, GIS, agriculture, machine control or monitoring. Required accuracy and correction method: local base, radio, network RTK, VRS, PPP or other workflow. Field environment: urban, open field, mountain, mine, road, dam, bridge or campus. Preferred features: IMU tilt, visual measurement, radio, 4G, battery life, rugged body or lightweight design. CORS/VRS Project Country or region and planned coverage area. Station quantity, receiver model preference and antenna installation environment. Data communication plan, power supply condition and server or platform requirements. Expected rover users, accuracy target and project timeline. Monitoring Project Object to monitor: dam, slope, mine, bridge, building, tailings reservoir or construction site. Number of monitoring points and reference points. Accuracy target, data interval and reporting or alert requirements. Power supply, communication condition and installation environment. FAQ Which TOKNAV document should I download first? For general RTK receiver selection, start with the GNSS Receiver Brochure. For CORS, VRS or monitoring projects, also download the Solution Brochure, NET660i PDF and a relevant GNSS antenna document. Can TOKNAV recommend a product package after I send project details? Yes. Share your application, region, accuracy target, correction method, field environment and preferred product family so TOKNAV can recommend a receiver, antenna, software and accessory package. Are the PDFs enough for a distributor quotation? The PDFs are a good first step. Distributor or wholesale buyers should also include target market, sales channel, expected product demand, support needs and active project information. Do CORS and deformation monitoring projects need custom configuration? Yes. CORS, VRS and monitoring projects should be planned around station count, installation environment, communication, power, target accuracy and long-term maintenance requirements. Request a Recommendation Send your project type, country, required accuracy, correction method and target product family to TOKNAV. The team can help compare models, prepare documents and recommend a suitable package. Contact TOKNAV Distributor cooperation