AML-30, Active Magnetic Loop Antenna Frequency range 10 kHz - 30 MHz Power consumption 5V - 20 mA, 9V-12V - 26mA Order the boards on OSH PARK https://oshpark.com/shared_projects/NqlfM7xq https://oshpark.com/shared_projects/O8YIWjMf Example, working with SDR Micron (Video)