Product overview
The Shenzhen JND Technology Co., Ltd ST-M1118 is a single-frequency, dual-mode positioning module built around the CYNOSURE III Lite GNSS system-on-chip. It receives BeiDou B1I/B1C and GPS L1C/A signals and supports both independent positioning with one satellite system and combined positioning across multiple systems. Its compact, highly integrated design targets cost-sensitive GNSS deployments at scale, with a small physical footprint and a surface-mount format suited to volume production.
The module measures 12.2 mm × 16.0 mm, providing a compact component footprint for integration. Its positioning features include A-GNSS assistance, while active antenna detection and protection provide additional antenna-related functionality. Compatibility with mainstream GPS modules is intended to reduce replacement costs, although that compatibility statement does not identify particular module models. The ST-M1118 combines these integration features with a low-cost design intended for applications where component cost is a significant procurement consideration.
Specifications
| Specification | Value & conditions |
|---|---|
| Product type | ST-M1118 single-frequency, dual-mode GNSS positioning module |
| GNSS chipset | CYNOSURE III Lite GNSS SoC |
| Dimensions | 12.2 mm × 16.0 mm |
| Supported satellite signals | BDS B1I/B1C and GPS L1C/A |
| Positioning modes | Single-system independent positioning and combined multi-system positioning |
| Assisted positioning | A-GNSS assisted positioning supported |
| GPS module compatibility | Compatible with mainstream GPS modules to reduce replacement costs |
| Active antenna functions | Active antenna detection and protection supported |
| Mounting format | SMD surface-mount format for volume production |
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