Active Magnetic Loop Antenna HA SDR Short Wave Medium Wave Radio Loop Antenna Low Noise Adjustable Gain Antenna 100kHz-30MHz
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.
Shipping list:
1. Kits：
① Main Board
② Electronic components
2.Finished Board
① Finished Board.
②Loop antenna x 1. (304 steel wire, steel wire Φ1.5mm, loop vibrator Φ50cm)
Note: The battery is only for display, not included in the package
Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
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SHIPPING
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How to choose the correct size:
Step 1 Please measure your foot length carefully.
Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
