DIY 868/917 Mhz LoRa collinear coaxial antenna 7.8db part I. For tests and calibration check part II
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DIY 868Mhz LoRa collinear coaxial antenna 7.8db part I
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DIY 868/917 Mhz LoRa collinear coaxial antenna 7.8db part I. For tests and calibration check part II
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