Ebyte E28-2G4M12 Series User Manual page 10

Chengdu Ebyte Electronic Technology Co., Ltd.
Manual
The ground will absorb and reflect wireless radio wave, so the performance will be poor when testing near ground.
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Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea.
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The signal will be affected when the antenna is near metal object or put in a metal case.
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Power register was set incorrectly, air data rate is set as too high (the higher the air data rate, the shorter
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the distance).
The power supply low voltage under room temperature is lower than 2.5V, the lower the voltage, the
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lower the transmitting power.
Due to antenna quality or poor matching between antenna and module.
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E28-2G4M12S User
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