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The SkyLab SKM55 Series with embedded GPS antenna enables high performance navigation in the most stringent applications and solid fix even in harsh GPS visibility environments.
Read More| VCC | 3.3V~5.5V |
| Ultra high sensitivity | -165dBm |
| Dimension(L×W×H) | 25 x 25 x 4.0 mm |
The SkyLab SKM55 Series with embedded GPS antenna enables high performance navigation in the most stringent applications and solid fix even in harsh GPS visibility environments.
It is based on the high performance features of the MediaTek single-chip architecture, Its –165dBm tracking sensitivity extends positioning coverage into place like urban canyons and dense foliage environment where the GPS was not possible before. The UART and USB connector design is the easiest and convenient solution to communication with other electronic equipment.
SKM55 series GPS modules include SKM55TM, SKM55TD, SKM55RM, SKM55RD, SKM55U, etc.
| Standard protocol | hardware interface | ||
| Micro-Fit 3.0 | USB | DB9 | |
| UART(TTL) | SKM55TM | SKM55TD | |
| RS232 | SKM55RM | SKM55RD | |
| USB | SKM55U | ||
Features
Ultra high sensitivity: -165dBm
22 tracking/66 acquisition-channel receiver
WAAS/EGNOS/MSAS/GAGAN support
NMEA protocols (default speed: 9600bps)
Internal back-up battery
One serial port
Embedded patch antenna 25 x 25 x 4.0 mm
Operating temperature range: -40 to 85℃
RoHS compliance (Lead-free)
FCC,CE compliance
Tiny form factor ：46 * 45 * 15mm
| Parameter | Specification | |
| GPS receiver | ||
| Receiver Type | L1 frequency band, C/A code, 22 Tracking / 66 Acquisition-Channel | |
| Sensitivity | Tracking
Acquisition |
-165dBm
-148dBm |
| Accuracy | Position
Velocity |
3.0m CEP50 without SA(Typical Open Sky)
0.1m/s without SA |
| Acquisition Time | Cold Start
Warm Start Hot Start Re-Acquisition |
32s
23s 1s <1s |
| Power Consumption | Tracking
Acquisition |
30mA @3.3V Typical
35mA @3.3V |
| Navigation Data Update Rate | 1Hz | |
| Operational Limits | Altitude
Velocity Acceleration |
Max 18,000m
Max 515m/s Less than 4g |
| Antenna Specifications | ||
| Outline Dimension | 25 x 25 x 4.0 mm | |
| Center Frequency | 1575 ± 3 MHz | |
| Bandwidth | 10 MHz min | |
| Impedance | 50 Ω | |
| Axial Ratio | 3 dB max | |
| Polarization | RHCP | |
Applications
LBS (Location Based Service)
PND (Portable Navigation Device)
Vehicle navigation system
Mobile phone
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