yeah, but you still have a conductor in the near field of the antenna under test. It would solve the "measuring at the end of a balanced transmission line" thing. And, of course, galvanic isolation is handy in a lot of test scenarios.
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-----Original Message-----
From: <nanovna-users@groups.io>
Sent: Dec 5, 2024 11:30 AM
To: <nanovna-users@groups.io>
Subject: Re: [nanovna-users] USB isolator suggestions?
All the Analog Devices isolator chips seem to specify an input to output capacitance in the region of 2pF, which is quite good, and comparable to the Coilcraft broadband RF transformers.
Using an isolator and adding some additional clip-on ferrites to the USB cable, would improve the HF common mode isolation still further.
--
Regards,
Martin - G8JNJ
