Product overview
The Shenzhen JND Technology Co., Ltd JND ST-26-GNF2 is a single-frequency, dual-mode GPS/GNSS receiver module for positioning, tracking and navigation. Its intended integration space includes model aircraft flight control, UAVs, quadrotors, hexarotors and other multirotor aircraft, alongside vehicle and portable equipment. The physical design uses single-sided surface mounting and a secondary SMT assembly scheme. An eighth-generation UBX-M8230 chipset forms the receiver core, with integrated LNA, SAW and flash components supporting the module architecture.
Integration options include selectable UART / TTL or USB2.0 output, configurable NMEA 0183 V3.0 sentence combinations and an adjustable 1Hz-10Hz refresh rate. The default serial rate is 9600bps, with selectable rates extending to 921600bps. Flash retains configuration commands after power loss, while a KDS 0.5PPM TCXO and built-in RTC crystal support the receiver design. Users can configure application modes and 2D or 3D positioning; supported assistance services include AssistNow Online and AssistNow Offline.
Specifications
| Specification | Value & conditions |
|---|---|
| Product type | ST-26-GNF2 single-frequency, dual-mode GNSS module. |
| Receiver chipset | Eighth-generation UBX-M8230. |
| Integrated components and configuration retention | Integrated LNA, SAW and flash; configuration commands can be stored and retained after power loss. |
| Mounting architecture | Single-sided surface mounting with a secondary SMT assembly scheme. |
| Manufacturing | Lead-free manufacturing; RoHS compliant. |
| Output interfaces | UART / TTL or USB2.0.Selectable output interface. |
| Reference oscillator | KDS 0.5PPM high-precision TCXO. |
| Data output rates | 9600bps default; selectable: 1200, 2400, 4800, 19200, 38400, 57600, 115200, 230400, 460800 and 921600bps.9600bps is the default; other listed rates are selectable. |
| Output protocol and sentences | NMEA 0183 V3.0: GGA, GSA, GSV, RMC, VTG and GLL.Output sentence combinations are configurable. |
| RTC | Built-in RTC crystal. |
| Refresh rate | 1Hz-10Hz.Adjustable data refresh rate. |
| Satellite quality controls | Configurable satellite quality controls and software settings to prevent position drift. |
| Application modes | Pedestrian, vehicle, stationary, portable and airborne modes; 2D and 3D positioning.User-selectable operating and positioning modes. |
| Positioning PPS indicator | Supports a positioning PPS indicator with fix-dependent behavior.Before a position fix: continuously illuminated or off; after a position fix: flashing. |
| Assisted GPS | Supports A-GPS services including AssistNow Online and AssistNow Offline. |
| Satellite navigation engine | Mixed engine for GPS, GLONASS, BeiDou, GALILEO and SBAS, including WAAS, EGNOS, MSAS and GAGAN. |
| Intended applications | Positioning, tracking and navigation for model aircraft flight control, UAVs, quadrotors, hexarotors and other multirotor aircraft. |
