For GNSS resellers and integrators, the core requirement from a GNSS reference station is predictable, 24/7 correction data with minimal site visits. That means a stable monument, clean sky view, robust power and communications, and hardware designed to keep running even when individual components fail or need service.
Across IGS and national CORS networks, the operational standards are clear: high-quality stations must provide multi-constellation, multi-frequency tracking, redundant power, and reliable communications with data loss of less than 1% per year see, for example, IGS CORS guidelines. For channel partners, the challenge is delivering that level of reliability without building a custom system for every site.
iStation18 is built as a high-end reference receiver for Ground‑Based Augmentation Systems (GBAS) and CORS networks. It tracks all major GNSS constellations—BDS (including BDS‑3), GPS, GLONASS, Galileo, and QZSS—across multiple frequencies, so your network can meet modern CORS guidelines that now expect full multi‑GNSS capability as reflected in recent IGS CORS and EPN documents.
Signal quality is where many reference stations quietly fail. iStation18 integrates SpatiX Interference Mitigation and multi‑path rejection algorithms directly on the OEM boards. In practice, that means more stable carrier‑phase tracking in urban or industrial environments where metallic structures and RF sources are common. For channel partners, this reduces the number of support tickets related to intermittent RTK or PPP convergence issues.
Each station can host up to three GNSS boards simultaneously. That lets you offer configurations tailored to specific projects: dual‑board setups for hot‑standby redundancy, triple‑board systems for multi‑frequency logging plus high‑rate real‑time streaming. Because iStation18 also supports third‑party boards, integrators are not locked into a single GNSS chipset roadmap.
iStation18 uses a PXI-based modular architecture to consolidate what is usually a rack of mixed hardware into one industrial server. In a typical CORS deployment, you would separately procure a GNSS receiver, firewall, optical‑to‑electrical media converter, LTE router, UPS, and battery pack. Each of those adds procurement complexity, cabling effort, and failure points.
With iStation18, these are integrated into plug‑in PXI modules inside one chassis. The GNSS receiver, security gateway, fiber interface, LTE modem, UPS, and Li‑ion battery all share a common backplane yet remain individually replaceable. Field technicians can swap a faulty module in minutes without touching the rest of the installation or re‑terminating cables.
For channel partners in regions with demanding site logistics—such as remote agricultural hubs, coastal monitoring points, or urban roof‑top GBAS sites—this translates directly into lower truck rolls. A single spare chassis or a small set of spare modules can support an entire regional network, which simplifies stock management and post‑sales service contracts.
Reference station downtime immediately impacts every rover depending on that site. Industry experience shows that unscheduled outages in a CORS network can consume disproportionate support time and damage end‑user trust as highlighted in multiple RTK operations reviews such as recent discussions on production‑grade base stations.
iStation18 is engineered around a redundancy-first philosophy. On the GNSS side, it can host up to three OEM boards working in parallel; if one board fails or is taken offline for firmware upgrades, others keep the station broadcasting corrections and logging data. On the power side, it accepts AC and DC inputs with automatic switchover, includes wide‑voltage isolation circuitry, and integrates an internal Li‑ion battery that supports over 30 hours of continuous operation.
Communications are equally protected. Ethernet and LTE links can be configured with automatic failover and alerting, so a fiber cut or mobile outage does not silently stop correction streams. Because the UPS and battery are inside the same chassis, there is no need to engineer custom external power boxes to meet CORS guidelines for continuous operation during grid disturbances.
Modern CORS customers expect open data formats and secure transport. iStation18 addresses this directly by supporting RINEX 3.xx and SpatiX QXB formats with ZIP compression, plus legacy and real‑time protocols such as CMR/CMR+, RTCM v2.x/v3.x, BINEX, and NMEA 0183. Up to six high‑rate logging sessions can run in parallel on the integrated 32 GB flash storage.
For secure communications, the server includes routing functions with static and dynamic protocols, millisecond‑level link failure detection, and IPsec VPN tunnels using AES/SHA encryption. This aligns with security expectations for GNSS infrastructure deployed in transport, smart city, and critical infrastructure environments, where corrections often move across shared or public networks.
Practically, channel partners can integrate iStation18 into existing NTRIP, TCP/IP, or serial‑based correction distribution systems without custom firmware work. Data can be accessed over FTP and HTTP, which simplifies workflows for agencies that still prefer file‑based RINEX distribution alongside real‑time services.
As GNSS networks grow, operational complexity often becomes a bigger issue than hardware selection. Each additional station means more firmware to track, more configuration drift risk, and more potential blind spots in monitoring—problems highlighted repeatedly in recent RTK network integrity analyses such as cloud‑based RTK monitoring solutions.
iStation18 includes a built‑in web UI and intelligent cluster management layer designed for “man‑machine” and “machine‑machine” operations. From a central console, operators can push firmware upgrades, reboot devices, adjust configurations, run asset inventories, and monitor status across an entire fleet. This reduces the need for site‑by‑site SSH scripts or vendor‑specific management tools.
For channel partners, this is an enabler for recurring‑revenue models. Instead of selling a one‑off reference receiver, you can offer a managed CORS service where your team handles monitoring, updates, and SLA‑driven support across dozens of iStation18 nodes. The combination of integrated redundancy, secure protocols, and cluster management allows you to scale from a single municipal GBAS installation to a national multi‑station network without redesigning your operational playbook.