missing and I just finished my new loop antenna for VLF, LF, MF.
Construction data: A
pipe systems with a diameter of 25mm
Four 90 ° elbows always 25mm
A Tee 25mm
A Box by external electrical ... just like you
A variable capacitor of suitable cap (for now use what I have, that is a condo from 1.3n + other fixed capacitors to be put in parallel)
A flat 40-pin I
arms of the loop is 50cm and the total inductance of the coil is 2.23mH.
I have not used all 40 poles but only 37, the three that are advanced have used them to make the loop feeding.
This secondary loop takes the input signal to be sent to the receiver ... not loading the main loop and maintain a good Q.
I have already tested the loop when it was still a pile of pieces not stuck ... and I must say that performs well under 100kHz! (DCF77, HBG)
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