GMM-U1 Datasheet, PDF (16/36 Pages) List of Unclassifed Manufacturers – GPS Module

GlobalTop Technology
Gmm-u1 Data Sheet
16 _{Ver. V0G}
2.9 GPS External Antenna Specification (Recommended)
It is important that the antenna gets a clear view of the sky and is positioned on a surface
level to the horizon for best results. The following specification has to meet for the use
reference design.
Characteristic
Polarization
Frequency Received
Power Supply
DC Current
Total Gain
Output VSWR
Impedance
Noise Figure
Specification
Right-hand circular polarized
1.57542GHz +/- 1.023MHz
3V to 10V
3mA ~ 30mA at 3.3V
+ 15dBi
< 2.5
50ohm
< 1.5dB
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