GNSS Receiver Buyer’s Guide
Compare GNSS modules, development boards, integrated receivers, and survey systems—then find the integration path that fits your system.
GNSS RECEIVER TYPES
This GNSS receiver buying guide starts with one decision: how much hardware, software, and field integration your team plans to own. Start with the product boundary, then compare detailed specifications.
CUSTOM OEM HARDWARE
A surface-mount GPS module for a custom carrier board or embedded GNSS receiver design.
Choose it when
Your team wants control over the PCB, RF path, antenna, power, interfaces, and enclosure.
Your team still own
Carrier-board design, antenna integration, mechanics, validation, and production.
BENCH EVALUATION
A GNSS module on an accessible board for bench evaluation, firmware work, and interface testing.
Choose it when
You need fast electrical access before committing to a production PCB or final hardware architecture.
Your team still own
The final antenna, enclosure, mounting, host integration, and production design.
ROBOTS & FIELD MACHINES
A packaged receiver combining the positioning electronics, antenna path, host connection, cable, and housing.
Choose it when
You want to connect, mount, and field-test without designing the complete GNSS hardware stack.
Your team still own
Host software, correction delivery, mounting, installation, and application-level validation.
SURVEY & MAPPING
A complete field instrument built around survey, GIS, stakeout, or mapping workflows.
Choose it when
A field operator, controller, and established survey workflow are central to the task.
Your team still own
Job setup, correction access, field procedures, quality control, and final data management.
RECEIVER SELECTOR
Start with ownership, deployment, and project stage. You can verify detailed specifications after the direction is clear.
YOUR RECOMMENDATION APPEARS HERE
WHY THIS PATH
KALMIX FIT
Review documentationSELF-CHECK BEFORE COMPARING
Ownership → operating environment → project stageFor teams owning the carrier PCB, RF path, antenna, mechanics, interfaces, and production design.
View GUIDE →For reaching real NMEA output and correction testing before the production architecture is fixed.
View SCOUT →For reducing GNSS hardware work and moving faster into mounting, host integration, and field validation.
View SCOUT PRO →For an operator-led survey, stakeout, GIS, or mapping workflow centered on a complete field instrument.
Discuss your workflow →SELECTION CHECKS
A specification sheet is only useful after these system decisions are clear. Use these checks to separate a promising receiver from one that will work in the final product.
DECISION IMPACT
This sets ownership for PCB, antenna, enclosure, cabling, mounting, and production validation.
VERIFY
Set the responsibility boundary before comparing chipset details.
DECISION IMPACT
USB-C suits fast host integration; UART, I²C, PPS, and SPI suit custom embedded designs.
VERIFY
Check connector, voltage, driver, data rate, update rate, and two-way data flow on the real host.
DECISION IMPACT
Frequency support changes the signals available and RTK behavior in the conditions you expect.
VERIFY
Verify final-SKU bands and constellations rather than choosing by chipset family alone.
Compare full GNSS specificationsDECISION IMPACT
Open sky and repeated obstruction demand different variants, test routes, and validation plans.
VERIFY
Define the real route and the behavior required when the solution is not RTK Fixed.
Explore moving-platform GNSSDECISION IMPACT
A module adds RF work; an integrated receiver removes more antenna and hardware integration.
VERIFY
Confirm mounting, sky view, nearby metal, cable routing, and electrical noise.
DECISION IMPACT
RTK hardware needs a correction source, a host path, and defined behavior when RTCM data is delayed or unavailable.
VERIFY
Confirm source, format, latency, credentials, interface, and behavior when corrections stop.
Understand NTRIP07Evidence & Support
Specifications shortlist hardware; documentation, logs, test context, and support determine whether the integration can be debugged and maintained.
VERIFY
Look for protocols, mechanical references, tools, test conditions, and a clear support path.
Open DocumentationKALMIX OPTIONS
Compare product capabilities, available versions, prices, and availability before opening the product page for full specifications.
ENTRY RTK RECEIVER
A compact L1/L5 receiver for evaluation, education, early prototyping, and open-sky deployment.
CHOOSE A VERSION
1 Hz standard RTK · BMI325 not active
ROBOTICS & FIELD MACHINES
A field-ready L1/L5 receiver for robotics, AGV, agriculture, construction machinery, and low-speed autonomous platforms.
CHOOSE A VERSION
1 Hz standard RTK
CUSTOM OEM MODULE
A 24-pin LCC L1/L5 module family for custom carrier boards, embedded receivers, and volume integration.
CHOOSE A VERSION
Standard RTK · UART / I²C / PPS
| Compare products | SCOUT | SCOUT PRO | GUIDE K35 |
|---|---|---|---|
| Product form | Integrated IP67 G-Mouse | Integrated IP67 G-Mouse | 24-pin LCC surface-mount module |
| Main application | Evaluation and open-sky projects | Robotics and field machines | Custom OEM integration |
| GNSS platform | BEKEN BK1662 | Airoha AG3335 | Airoha AG3335 |
| Interfaces | USB-C serial | USB-C serial | UART · I²C · PPS · SPI |
| Antenna | Integrated antenna | Integrated antenna | External antenna required |
| Starting price | $99 | $149 | $69 |
| Next step | View SCOUT | View SCOUT PRO | View GUIDE K35 |
DETAILED SPECIFICATIONS
Explore protocols, interfaces, mechanical references, and detailed product documentation in the Kalmix Documentation Hub.
VALIDATE YOUR SHORTLIST
To evaluate a GNSS receiver, define the required performance thresholds, test the complete integration on a representative route, and review every result with its test conditions and limitations.
Set measurable requirements for error, availability, degraded states, and a route that represents deployment.
Acceptance criteriaUse the intended antenna, mounting, correction path, host connection, motion, and obstruction conditions.
Test logsReview the route, reference method, solution states, error distribution, degraded periods, and stated limitations.
Evidence-based decisionGUIDE K35E GROUND TRUTH FIELD RECORD
Published field result
Module-level result from one documented setup, route, reference method, and analysis window; not a universal claim for every Kalmix product or deployment.
Use TRACE to connect, forward corrections, monitor receiver status, inspect the skyplot, and save test logs.
Get TRACE for WindowsReview interfaces, protocols, mechanical references, compliance files, and product-specific integration documentation.
Open DocumentationDECISION FAQ
Quick answers to the questions that most often change the receiver form, integration path, or Kalmix starting point.
GPS is one satellite navigation constellation. GNSS is the broader category that can include GPS, Galileo, BeiDou, GLONASS, QZSS, and other supported systems. Many products are still called GPS receivers even when they track several constellations. Compare the exact signals supported by the final product, not only the category name.
Choose a module when your team needs control over the PCB, RF path, antenna, power, interfaces, enclosure, and production architecture. Choose an integrated receiver when you want to reduce GNSS hardware work and move faster into host integration, mounting, and field validation.
A development board is useful when you need accessible interfaces for bench evaluation, firmware work, and early correction testing before the production architecture is fixed. It is not automatically deployment-ready; the final system may still need a custom antenna, enclosure, cable, mount, and carrier board.
No. RTK-capable hardware needs suitable satellite measurements, a compatible correction source, and a working data path that delivers corrections to the receiver. Installation, obstruction, multipath, correction age, solution state, and the application’s validation method also affect the result.
SCOUT is the simplest Kalmix starting point for cost-conscious, open-sky evaluation with a packaged receiver. GUIDE is the better evaluation path when board-level integration is already a requirement. SCOUT PRO is the stronger starting point when the prototype is expected to move toward robotics or field-machine deployment.
GUIDE fits teams building GNSS directly into a custom carrier board, receiver, or embedded product. SCOUT and SCOUT PRO fit projects that prefer an external integrated receiver with the antenna, enclosure, cable, and host-ready connection already packaged.
Share your host, application, operating environment, correction source, project stage, and expected volume. We’ll help identify the more practical starting point before you commit to a receiver form or production design.
