Product overview
The Shenzhen JND Technology Co., Ltd ST-26-GNF1 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, quadcopters, hexacopters and other multirotors, alongside vehicle and portable equipment. The physical architecture uses a single-sided surface-mount arrangement with a secondary SMT assembly approach. An eighth-generation UBX-M8130 chipset is combined with integrated LNA, SAW and flash components, a KDS 0.5 PPM TCXO and an RTC crystal.
Integration options include UART/TTL and optional USB 2.0 output. The default serial rate is 9600 bps, with selectable alternatives extending to 921600 bps, while navigation updates are adjustable from 1 Hz to 10 Hz. Configurable NMEA 0183 V3.0 sentence combinations and pedestrian, automotive, stationary, portable and airborne modes support different host applications. Configuration commands remain stored after power loss. AssistNow Online and Offline services are supported, and position/PPS indicator behavior changes according to whether a position fix has been obtained.
Specifications
| Specification | Value & conditions |
|---|---|
| Product type | ST-26-GNF1 single-frequency, dual-mode GNSS receiver module |
| Receiver chipset | Eighth-generation UBX-M8130 |
| Integrated components and configuration retention | Integrated LNA, SAW and flash; stored configuration commands are retained after power loss. |
| Mounting architecture | Single-sided surface-mount module supporting a secondary SMT assembly process |
| Manufacturing process | Lead-free manufacturing; RoHS compliant |
| Output interfaces | UART / TTL; optional USB 2.0 outputUSB 2.0 output is optional. |
| Reference oscillator | KDS 0.5 PPM TCXO |
| Serial data rates | 9600 bps default; selectable 1200, 2400, 4800, 19200, 38400, 57600, 115200, 230400, 460800 and 921600 bps9600 bps is the default. |
| Navigation output protocol | NMEA 0183 V3.0: GGA, GSA, GSV, RMC, VTG and GLLOutput sentence combinations are configurable. |
| Real-time clock | Built-in RTC crystal |
| Update rate | 1 Hz–10 HzAdjustable data refresh rate. |
| Satellite quality controls | Configurable satellite quality controls and software settings to prevent position drift |
| Navigation modes | Pedestrian, automotive, stationary, portable and airborne modes; 2D and 3D positioningUser-selectable operating and positioning modes. |
| Position/PPS indicator support | Supports a position/PPS indicator with fix-dependent behavior.Before a position fix, the indicator is continuously lit or off; after a fix, it flashes. |
| Assisted positioning | Supports AssistNow Online and AssistNow Offline A-GPS services. |
| Satellite navigation engine | Mixed GPS, GLONASS, BeiDou, Galileo and SBAS engine; SBAS systems listed are WAAS, EGNOS, MSAS and GAGAN. |
| Intended applications | Positioning, tracking and navigation, including model aircraft flight control, UAVs, quadcopters, hexacopters and other multirotor aircraft |
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