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.
ASSEMBLY INSTRUCTIONS
RFLEGO Active Antenna Receiving Loop
page 56 of 66
