Kapanadze Cousin - DALLY FREE ENERGY

[Void]

I did use "normalize" to flatten the response when testing the connecting leads which in this case also includes the 3 turn in- and output coils.

Hi Itsu. Maybe I am misunderstanding, but if you normalized with the two three turn
windings on the ferrite core, it seems to me that the spectrum anaylzer would try to
normalize the response of the spectrum analyzer to be flat through the normalized frequency
range of 9 kHz to 100 MHz, which would normalize out much of the frequency response variation of the
yoke core. Don't you actually want to see what effect both the yoke core and primary winding are having
on the frequency response? If so, I think you need to just connect the spectrum analyzer probe to the
TG output cable (including the 10dB attenuator if you are using it) and do the normalization, and then
after doing this normalization to normalize out any frequency dependent imbalances in the cables and probe
and attenuator, you would then connect the cables to the three turn pickup winding and the primary winding
to see the frequency response through 100 MHz. Were you trying to normalize out the frequency response of the
yoke core intentionally?

[itsu]

Hi Void,

well, my dilemma is that  doing it your way (which i was meaning to do too), you ALSO measure the response of the 3 turn coil, and i ONLY want to know the response of one primary coil.
I hoped that doing it my way    i could eliminate (normalize) this 3 turn coil, but i am not sure if this will work that way, so i will try the other way too.

Itsu
 

[Void]

Hi Void,
well, my dilemma is that  doing it your way (which i was meaning to do too), you ALSO measure the response of the 3 turn coil, and i ONLY want to know the response of one primary coil.
I hoped that doing it my way    i could eliminate (normalize) this 3 turn coil, but i am not sure if this will work that way, so i will try the other way too.
Itsu

Hi Itsu.  OK, I see what you were trying to do now. The problem is that in trying to
normalize out any frequency peaks or dips due to the three turn coil, you are also normalizing out
the frequency response of the yoke core. You can't completely win either way it seems. 

[itsu]

Here the normalize was done (as from the books) using the used cables and attenuator before connecting to the dut.

The result is again over a 0Hz - 100MHz range, but shows to my opinion the response of both the 3 turn secondary and one primary combined.

Itsu

[Void]

Here the normalize was done (as from the books) using the used cables and attenuator before connecting to the dut.
The result is again over a 0Hz - 100MHz range, but shows to my opinion the response of both the 3 turn secondary and one primary combined.
Itsu

Hi Itsu. That is why I was just connecting my probe to a short strip of aluminum foil stuck to the side of the yoke
when I was doing my spectrum analyzer tests. A single loop of wire through the yoke core may have
less impact on the frequency response trace as well. I am not sure what the best approach is for
trying to do these sort of frequency response tests however.

P.S.  Those peaks around 50 MHz and above 90 MHz are interesting.