[TowerTalk] Wireman W2DU Current Type Balun

[Lux, Jim]

On 12/25/22 4:18 AM, Máximo EA1DDO_HK1H wrote:
> Paul, there is a document somewhere showing S21 better (more accurate) results to S11.
> I need to look for that doc.
>
> 73,
>
> Máximo EA1DDO
> www.EA1DDO.es


There's a nice application note from Copper Mountain that looks at 
uncertainty in S11 vs S21 measurements of impedance.  As one might 
expect it varies with the magnitude of the impedance.

https://www.mwrf.com/technologies/test-measurement/article/21849791/copper-mountain-technologies-make-accurate-impedance-measurements-using-a-vna