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Re: AA-230 Zoom - measuring chokes

 

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Dear Tony,

Let me ask you a few questions:

For what purpose do you need to measure the impedance of a choke?

For example, when calculating and manufacturing various filters, we need to know the inductance of the choke (and its Q-factor). But not impedance. The filter (as a ready-made unit) has its own impedance.

It is possible to measure the inductance of the choke with an analyzer (observing some conditions).



Best Regards, Alex

13.10.2020 15:08, N2TK, Tony via groups.io §á§Ú§ê§Ö:

Trying to measure the choking impedance of some chokes I wound. Using #8 to
display all parameters. Frequency set to 1800 KHZ.
I am getting strange readings.  As an example, chokes wound with a pair of
#75 ferrite cores with 21 turns that should read 13K read Z - 2.3k and R -
292 ohms.
Am I doing something wrong (the usual case) or maybe the AA-230 isn't
designed to do this?
Thanks for any feedback
N2TK, Tony

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