From: [email protected] <[email protected]> On Behalf Of Alex RigExpert via groups.io
Sent: Tuesday, October 13, 2020 9:01 AM
To: [email protected]
Cc: Serhii Litvinov <s.litvinov@...>; Ashot Andreev <aandreev@...>
Subject: Re: [RigExpert Family] 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

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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