Platform
Airoha AG3335 foundation
A compact dual-band GNSS platform for embedded RTK module design and OEM evaluation.
GUIDE Series
Kalmix™ GUIDE — L1/L5 RTK GNSS Module
Kalmix™ GUIDE — L1/L5 RTK GNSS Module
A board-level dual-band RTK module for OEM hardware design, embedded positioning systems, and volume deployment.
Airoha AG3335
L1/L5 Dual-Band
RTK-Capable
Board-Level Module
OEM Integration
Regular price
$69.00
Regular price
$99.00
Sale price
$69.00
Shipping calculated at checkout.
Quantity
Couldn't load pickup availability
Building 10+ units? Volume pricing available →
Global shipping. Estimated delivery typically 7–10 business days. Tracking provided after shipment.
12-month limited warranty
Email support included
OEM-friendly
Datasheets & integration docs
Key Facts
A board-level RTK module for OEM integration.
GUIDE is the module-level foundation for teams designing embedded positioning hardware, custom GNSS receivers, and volume RTK integration projects.
Module
Board-level RTK GNSS
GUIDE is designed for embedded hardware design, OEM integration, and custom positioning systems.
Platform
Airoha AG3335
Built around a dual-band L1/L5 GNSS platform for RTK-capable module-level integration.
Configurations
K35C / K35E
K35C supports standard RTK evaluation. K35E adds RTK+DR capability for moving platforms.
Evaluation
Module-level project fit
Designed for teams evaluating GUIDE as part of an embedded GNSS design or OEM receiver project.
Configuration Selector
K35C vs K35E: choose the right GUIDE configuration.
GUIDE is available in two module configurations. K35C is designed for standard RTK evaluation and embedded GNSS projects. K35E adds RTK+DR capability for moving platforms and more demanding integration scenarios.
| Configuration | K35C Standard RTK | K35E RTK + DR |
|---|---|---|
| Positioning role | Standard dual-band RTK module | Dual-band RTK module with dead reckoning support |
| Recommended use | Open-sky RTK evaluation, embedded GNSS projects, and cost-sensitive OEM design | Moving platforms, robotics, AGV, vehicle electronics, and short GNSS interruption scenarios |
| Best fit | Stationary or open-sky systems | Mobile systems that turn, accelerate, or pass through partial obstruction |
| RTK capability | Yes | Yes |
| Dead reckoning | Not included | Included |
| IMU | Not included | 6-axis IMU for RTK+DR configuration |
| Evaluation price | $69 direct evaluation price / $99 MSRP | $99 direct evaluation price / $149 MSRP |
Choose K35C if
You are evaluating standard RTK, designing a cost-sensitive GNSS board, or working mainly in open-sky conditions.
Choose K35E if
Your platform moves, turns, or may experience short GNSS interruptions where RTK+DR can improve continuity.
Not sure which configuration fits your project?
Discuss GUIDE integration →Product Overview
GUIDE is a board-level RTK module for custom hardware integration.
GUIDE is Kalmix’s board-level RTK GNSS module family for teams designing embedded positioning hardware, custom GNSS receivers, and OEM integration projects.
Unlike a finished G-Mouse receiver, GUIDE does not include the enclosure, cable, antenna mount, or field-ready deployment package needed for direct installation on a machine.
It is intended for engineering teams that need module-level access, layout flexibility, and project-scoped support before moving toward volume deployment.
01
Board-level access
Designed for teams building their own control boards, receiver hardware, or embedded GNSS systems.
02
Not a finished receiver
GUIDE is a module, not a sealed receiver with enclosure, cable, antenna mount, and field installation package.
03
Evaluation before volume
Best suited for module evaluation, OEM design review, and technical discussion before production deployment.
Module-Level Capabilities
Module-level capabilities built around AG3335.
GUIDE combines the Airoha AG3335 platform, dual-band RTK capability, optional RTK+DR configuration, and OEM-oriented integration support for embedded positioning projects.
RTK
Correction-ready workflow
Designed for RTK workflows where the host system manages GNSS output, correction input, and configuration.
RTK + DR
Motion-oriented option
K35E adds RTK+DR capability for moving platforms where GNSS signal quality may change during operation.
OEM
Integration support path
Built for teams that need pin-level evaluation, interface discussion, layout planning, and project-scoped support.
Module-to-Receiver Path
From module evaluation to receiver deployment.
GUIDE exposes the module-level foundation for board design. SCOUT Series packages the same positioning direction into a field-ready receiver form factor, while OEM projects can extend the platform into custom integration paths.
You are here
Path 01 · Module
Evaluate the GUIDE module
Your team is designing custom electronics around the K35 footprint and needs board-level access before volume deployment.
- Custom PCB, controller board, or receiver hardware
- Need pin definition, footprint, and layout references
- Evaluate K35C / K35E before production integration
- Engineering-led samples and volume discussion
Path 02 · Receiver
Use SCOUT PRO receiver
You want the same positioning direction, but packaged as a field-ready receiver with enclosure, antenna, cable, and mounting handled.
- Need faster RTK workflow validation
- Prefer USB-C receiver instead of board-level design
- Want enclosure, antenna, and mounting already integrated
- Better fit for robotics, AGV, and field evaluation
Path 03 · OEM
Start a custom OEM project
Your application needs project-specific hardware, connector, antenna, enclosure, firmware behavior, or integration support beyond a standard SKU.
- Target volume and defined product roadmap
- Specific mechanical or electrical envelope
- Project-scoped firmware or protocol requirements
- Single engineering path from module to receiver
Technical Specifications
Public reference data for GUIDE engineering evaluation.
A conservative specification table for first-pass evaluation. Full electrical, mechanical, and protocol details should be confirmed through the GUIDE datasheet and integration package.
| GNSS Engine | |
| Receiver type | 135-channel Airoha AG3335 dual-band GNSS engine |
| GPS signals | L1C/A · L5 |
| GLONASS signals | L1 |
| Galileo signals | E1 · E5a |
| BeiDou signals | B1I · B1C · B2a |
| QZSS signals | L1C/A · L5 |
| SBAS signals | L1 |
| Positioning & Velocity Accuracy | |
| Position accuracy | Standalone (SPP): ≤ 1.0 m CEP · RTK Fixed: ≤ 1 cm + 1 ppm CEP |
| Velocity accuracy | Standalone: 0.2 m/s · RTK Fixed: 0.03 m/s |
| Correction input | RTCM 3.x |
| TTFF & Sensitivity | |
| TTFF, AGNSS off | Cold start: 26 s · Warm start: 16 s · Hot start: 1 s |
| TTFF, EASY on | Cold start: 16 s · Warm start: 2 s · Hot start: 1 s |
| TTFF, EPO on | Cold start: 5 s · Warm start: 3 s · Hot start: 1 s |
| Sensitivity | Acquisition: −145 dBm · Reacquisition: −157 dBm · Tracking: −165 dBm |
| Dynamic limits | Altitude: 10,000 m · Velocity: 500 m/s · Acceleration: 4g |
| Interface & Protocol | |
| K35C interfaces | UART · I2C · PPS |
| K35E interfaces | UART · I2C · PPS · SPI |
| Output protocol | NMEA 0183: GGA, RMC, GSV, GSA, GLL, VTG, GST |
| PAIR protocol | Supported proprietary command protocol |
| Electrical Characteristics | |
| Power supply / VCC | 3.0 V – 3.6 V, typical 3.3 V |
| Power consumption @ 3.3 V | K35C: 25 mA tracking / acquisition · K35E: 30 mA tracking / acquisition |
| Backup mode | 25 μA |
| Physical & Environmental | |
| Package | 24-pin LCC |
| Dimensions | 12.2 × 16.3 × 2.4 mm |
| Operating temperature | −40 °C to +85 °C |
| Product type | Board-level GNSS module for integration into user-designed hardware |
Field Evidence
Real-world test records, not just datasheet claims.
Kalmix Ground Truth publishes selected field-test records with documented setup, route context, reference method, and interpretation notes. These records are not blanket performance guarantees; they help engineers inspect how a configuration behaved under a specific test condition.
Ground Truth Record
GUIDE-K35E Vehicle Route Field Test
A documented vehicle-route test record with setup details, route context, reference method, and reading notes.
Each record reflects one documented setup and route context, not a universal performance guarantee.
Integration & Host Platforms
Designed for board-level integration with common host systems.
GUIDE exposes standard embedded interfaces for host-side integration. The module is intended for teams building control boards, receiver hardware, or vehicle electronics around their own product requirements.
MCU
MCU-based controllers
For STM32, NXP, GD32, ESP32, RP2040, and similar embedded controllers using low-level serial interfaces.
Linux
Linux host systems
For Raspberry Pi, NVIDIA Jetson, and Linux-based host processors through UART or USB-UART bridge designs.
Vehicle
Vehicle electronics
For T-Box, P-Box, robotics controllers, and machine electronics requiring board-level GNSS integration.
OEM
Custom receiver design
For teams building receiver boards, antenna layouts, enclosure strategy, and production integration paths.
Target Applications
Built for the same real-machine deployment scenarios.
GUIDE supports the same application directions as the SCOUT Series, but at the module level for teams building their own electronics, receivers, and embedded positioning systems.
Robotics
Ground robots and mobile platforms operating autonomously outdoors.
AGV & Yard Vehicles
Autonomous trucks and yard vehicles navigating dynamic industrial environments.
Precision Agriculture
Guidance and positioning for farming equipment and field operations.
Construction & Survey Support
Machine guidance, site mapping, and survey support in challenging jobsite conditions.
Autonomous Research Platforms
Experimental vehicles and sensor research in outdoor test environments.
Education & Prototyping
Hands-on learning, rapid prototyping, and system evaluation with real RTK data.
Quick Facts
At-a-glance reference.
Plain-text reference designed for fast lookup, engineering review, and machine-readable extraction.
Module Reference
- Brand
- Kalmix
- Product name
- GUIDE
- Product type
- Board-level RTK GNSS module
- Module series
- K35 Series
- Configurations
- K35C · K35E
- Chipset platform
- Airoha AG3335
- GNSS bands
- L1 + L5 dual-band
- Channels
- 135 channels
- Constellations
- GPS · GLONASS · Galileo · BeiDou · QZSS · SBAS
- Position accuracy
- Standalone: ≤ 1.0 m CEP · RTK Fixed: ≤ 1 cm + 1 ppm CEP
- Velocity accuracy
- Standalone: 0.2 m/s · RTK Fixed: 0.03 m/s
- Update rate
- K35C: 1 Hz · K35E: 10 Hz
- IMU
- K35E includes ST LSM6DSR 6-axis IMU
- Interfaces
- K35C: UART · I2C · PPS / K35E: UART · I2C · PPS · SPI
- Output protocol
- NMEA 0183 · PAIR proprietary protocol
- Correction input
- RTCM 3.x
- Package
- 24-pin LCC
- Dimensions
- 12.2 × 16.3 × 2.4 mm
- Operating temperature
- −40 °C to +85 °C
- Primary use
- OEM receiver design · embedded positioning · module-level evaluation
- Related receiver
- SCOUT Series
- Availability
- Engineering evaluation / sample-only
Frequently Asked Questions
Answers for engineering and OEM teams.
Practical answers about GUIDE module evaluation, K35C / K35E selection, documentation, direct checkout status, and OEM integration.
What is Kalmix GUIDE?
GUIDE is Kalmix’s board-level RTK GNSS module family for teams designing embedded positioning hardware, custom GNSS receivers, and OEM integration projects. It is not a finished receiver product; it is intended for module-level evaluation and integration into user-designed hardware.
What is the difference between K35C and K35E?
K35C is the standard RTK configuration with 1 Hz update rate. K35E adds RTK + DR capability, 10 Hz update rate, and an integrated 6-axis ST LSM6DSR IMU for moving platforms and more demanding integration scenarios.
Why is direct checkout disabled?
GUIDE is currently handled through engineering evaluation rather than self-service checkout. Module-level projects usually require discussion around host interface, antenna design, board layout, documentation needs, and production plan before samples or volume supply are coordinated.
Should I choose GUIDE or SCOUT PRO?
Choose GUIDE if your team is designing its own PCB, receiver hardware, or embedded electronics. Choose SCOUT PRO if you need a ready-to-mount RTK receiver with enclosure, antenna, USB-C cable, mounting, and field deployment already handled.
Does GUIDE require an external antenna?
Yes. GUIDE is a board-level GNSS module and requires a suitable external L1/L5 GNSS antenna and integration design. If you need an integrated antenna and enclosure, SCOUT Series is the better starting point.
What host platforms can GUIDE work with?
GUIDE is intended for embedded host integration through standard interfaces such as UART, I2C, PPS, and SPI on K35E. Typical hosts include MCU-based controllers, Linux host processors, vehicle electronics, robotics control boards, and custom receiver hardware.
Are datasheets and reference materials available?
Public documentation includes introduction, pinout and interfaces, mechanical dimensions, protocol reference, certifications, and knowledge base articles. Datasheet PDF and deeper integration packages are available through engineering discussion.
Can GUIDE be used for OEM or volume projects?
Yes. GUIDE is designed for OEM evaluation and volume integration projects. Production terms, sample quantity, documentation package, and support scope are discussed based on project requirements and expected deployment plan.
Can firmware or protocol behavior be customized?
Project-specific firmware, protocol, or configuration requirements can be discussed during OEM evaluation. Kalmix does not publish a fixed customization menu; these requests are reviewed based on technical feasibility, project scope, and expected volume.
What information should I provide when contacting Kalmix?
Useful information includes target application, expected volume, host platform, antenna plan, interface requirements, operating environment, timeline, and whether you are evaluating K35C or K35E. This helps route the discussion to the right technical path.
Still have engineering questions?
Review the GitHub resources or contact Kalmix for integration files, project pricing, and technical support.