Hello Ed,
I postpone my experiments until I can build these transformers needed to do
a proper(?) DM measurement (as described in the earlier article, Fig. 16b).
A month ago I ordered some small toroids (also to make a three way RF
meter), still awaiting them.
I think your T1 measurement is only part of getting a DM model/measurement.
All the best,
Victor
P.S. The article is about CMC build of non-coax/twined cable, so the
model/results I somewhat different then for a 'transmission line' (RF) CMC:
Op di 12 jul. 2022 om 08:58 schreef Ed G8FAX <ed@...>:
toggle quoted message
Show quoted text
Hi Victor,
Thank you for your update and information.
There are different ways to measure CMC performance as there are different
'lumped' component models of a CMC taking account of parasitic elements of
a practical or real component.
There is merit in making a test configuration and method for how the
component will be used in a particular application. If I were designing and
making a CMC filter, I would use a different method of testing to my simple
proposal, one very similar to your preferred configuration.
I do not have any rf 1:1 center-tapped baluns so am not able to compare
results. If and when you have time to make comparisons, I would be very
interested in your findings.
Kind regards
Ed, G8FAX
