[TowerTalk] Measuring Common Mode Choke with Anritsu VNA

[Jim Brown]

Hewlett Packard''s app note on this topic is well known, and my own 
attempts at measuring high values of Z using S11 resulted in large errors.

73, Jim

On 1/2/2018 5:28 AM, Wes Stewart wrote:
> You keep saying that and I keep directing you to Kurt's paper that 
> shows this is incorrect.
>
> http://hamcom.dk/VNWA/How%20to%20measure%20very%20high%20impedances-Deutsch%20DG3OK.pdf 
>
>
> On 1/1/2018 7:40 PM, Jim Brown wrote:
>>
>> Avery,
>>
>> Somehow I failed to clearly make the point that measurement errors 
>> associated with measuring high Z chokes with S11 is NOT a relatively 
>> small error, like 10%. It can be a VERY LARGE error, like 50-70% in 
>> resonant frequency. Which FAILS to allow assessment of suitability 
>> for use in a given frequency range.
>>
>> 73, Jim
>>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>