Printed parts for magnetic loop HF antenna made from the cheap 90 cm aluminim fitness hula hoop (16 mm pipe dia).

The coupling loop is 18 cm dia and made from a solid electrical copper wire. The tuning capacitor holder is designed for a standard AM poly-film variable capacitor. Please note capacitor holder is detachable, so you can redesign it for any other capacitor suitable for required frequency band.

The antenna is mounted on a standard 20 mm PVC sewer tube. All parts are fastened using M3 Allen key bolts and hex nuts.

73! de R4ABX