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GNSS Module


Tracking Antenna Small GPS Receiver Module G-mouse SKM51

SKM51 is a complete GPS module (module + antenna) with high sensitivity, low power and small size.It can be easily integrated into portable devices PND, mobile phones, cameras, and car navigation systems.

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Chip MediaTek MT3333
Power Consumption 150mW
Dimension(L×W×H) 50.5*38.5*18(mm)

The SkyLab SKM51 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 connector design is the easiest and convenient solution to communicate with other electronic equipment.


◆Ultra high sensitivity: -165dBm

◆22 tracking/66 acquisition-channel receiver


◆NMEA protocols (default: 9600bps)

◆ Internal back-up battery

◆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 :50.5* 38.5 * 18mm

Parameter Specification
GPS receiver
Receiver Type L1 frequency band, C/A code, 22 Tracking / 66 Acquisition-Channel
Sensitivity Tracking:-165dBm
Accuracy Position:3.0m CEP50 without SA(Typical Open Sky)
Velocity:0.1m/s without SA
Acquisition Time Cold Start:23s
Warm Start:2~3s
Hot Start:1s
Power Consumption Tracking:30mA @3.3V Typical
Acquisition:35mA @3.3V
Navigation Data Update Rate 1Hz
Operational Limits Altitude:Max 18,000m
Velocity:Max 515m/s
Acceleration: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
Mechanical requirements
Dimension 50.5* 38.5 * 18mm
Weight 80g
Power consumption
VCC 3.3V~5V
Current 30mA(typical)
Operating temperature -40 ~ +85 ℃ (w/o backup battery)
Storage temperature -40 ~ +125 ℃
Humidity ≦95%

◆ LBS (Location Based Service)

◆ PND (Portable Navigation Device)

◆ Vehicle navigation system

◆ Mobile phone

1. who are we?
We are based in Guangdong, China, start from 2006,sell to North America(30.00%),Eastern Europe(15.00%),Western Europe(15.00%),Northern Europe(14.00%),Oceania(5.00%),South Asia(5.00%),Domestic Market(5.00%),South America(4.00%),Southeast Asia(3.00%),Africa(00.00%),Mid East(00.00%),Central America(00.00%),Southern Europe(00.00%).
2. how can we guarantee quality?
Always a pre-production sample before mass production; Always final Inspection before shipment;