Toroid Winding Step 25; Using The Ft37-43 - YooFab RFLEGO Assembly Instructions Manual

Toroid winding step 25

With the green toroid with ten turns, the LC meter reads a value of 512 uH.

Using the FT37-43

Using the FT37-43, each winding of ten (10) turns should produce 35 uH.
@ 3.5 MHz corresponds to an impedance of about 770Ω
•
@ 7 MHz corresponds to an impedance (Z) of about 1.5KΩ
•
@ 30 MHz corresponds to an impedance of about 6.5KΩ
•
The above is sufficient for our transformer to work well over the entire HF
spectrum.
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ASSEMBLY INSTRUCTIONS
RFLEGO Active Antenna Receiving Loop
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