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The SKM81F is a complete GNSS engine module that features super sensitivity, ultra low power and small form factor.
Read More| Accuracy | 3m |
| Receiver Type | GPS/BDS/GLONASS |
| Dimension(L×W×H) | 18*18*6.3(mm) |
The SKM81F is a complete GNSS engine module that features super sensitivity, ultra low power and small form factor. The GNSS signal is applied to the antenna input of module, and a complete serial data message with position, velocity and time information is presented at the serial interface with NMEA protocol or custom protocol.
It is based on the high performance features of the single-chip architecture, Its –165dBm tracking sensitivity extends positioning coverage into place like urban canyons and dense foliage environment where the GNSS was not possible before. The small form factor and low power consumption make the module easy to integrate into portable device like PNDs, mobile phones, cameras and vehicle navigation systems.
Features：
◆GPS/BDS/QZSS reseiver
◆ Ultra high sensitivity: -165dBm
◆ Extremely fast TTFF at low signal level
◆ Built-in 12 multi-tone active interference canceller
◆ Ultra low power consumption
◆±10ns high accuracy time pulse (1PPS)
◆ Advanced Features: AlwaysLocate; AIC; EPO;EASY
◆ SBAS (WAAS,EGNOS,MSAS,GAGAN)
◆ Operating temperature range: -40 to 85℃
◆ Small form factor: 18x18x6.3mm
◆ RoHS compliance (Lead-free)
| Parameter | Specification | |
| Receiver Type | GPS,GLONASS,BDS | |
| Sensitivity | track | -165dBm |
| capture | -148dBm | |
| Accuracy | position | 3.0m CEP50 without SA(Typical Open Sky) |
| speed | 0.1m/s without SA | |
| Timing（PPS） | 10ns RMS | |
| Start Time | Cold start | 23s(Typical Open Sky) |
| Hot Start | 2-3s | |
| Hot Start | 1s | |
| Reacquire | <1s | |
| Auxiliary GPS support | EPO | |
| Power consumption | track | 25mA @3.3V Typical |
| capture | 30mA @3.3V | |
| Data update rate | 10Hz Max | Default 1Hz |
| Limit | height | Max 18,000m |
| speed | Max 515m/s | |
| acceleration | Less than 4g | |
◆LBS (Location Based Service)
◆PND (Portable Navigation Device)
◆ Vehicle navigation system
◆Mobile phone
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