Description
Active Magnetic Loop Antenna HA SDR Short Wave Medium Wave Radio Loop Antenna Low Noise Adjustable Gain Antenna 100kHz-30MHz
Description:
The circuit board has reverse connection protection. The reverse connection of the power supply will not burn the chip, but the components cannot be soldered to the back of the circuit board, otherwise the chip will be burned. There are battery buckles or terminals, 9 volt battery power can use battery buckles, other power supply can use terminals.
Note: The rear red wire port is positive (+) and the black wire port is negative (-). Please make sure the wiring is correct before powering on.
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