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a sample program is available which provides more insight into the advanced uses of the module but the logic can be a bit tough to follow
The board also features 2x USB 3
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Option 1: Sensors work in areas covered by Helium Network (Check on Helium Explorer)
Standards CE: EN IEC 62368-1:2020 + A11:2020
JCB003 GPS+GSM Combination Antenna rail a sample program is availableFeatures GPS Antenna Center Frequency: 1575. 421MHz Band Width: CF3MHz Polarization: RHCP Gain: 0dBicZenith V. S. W. R: 1. 5 Impendance: 50 Axial Ratio: 3dB GSM Antenna Frequency Range: 824~960MHz 1710~2170MHz V. S. W. Rmin: 2. 5 Polarization: Linear Gain: 2dBiZenith Impendance: 50 Specifications: Item Specifications GPS Antenna Dielectric Antenna Center Frequency 1575. 423MHz Band Width CF4MHz Polarization RHCP Gain 0dBicZenith V. S. W. R 1. 5