EFFECT OF CMCs and/or BALUNS on RECEIVED NOISE

Beware of cheap underperforming clones

As of 2022 there are many badly performing clones on the market. V2/3GHz NanoVNA uses parts like ADF4350 and AD8342 which are costly and clones have been cutting costs by using salvaged or reject parts.

See official store and look for V2 Plus4/V2 Plus4 Pro versions only to avoid getting a bad clone. We have stopped selling V2.2 versions since October 2020, so all V2 hardware that are not Plus or Plus4 are not made by us and we can not guarantee performance.

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EFFECT OF CMCs and/or BALUNS on RECEIVED NOISE

David Eckhardt 2021/01/22 23:54

For those unbelievers in feedline chokes to properly treat CM energy on
feedlines, I made some quantitative tests using my HF antenna and Icom
7300. So,...... have a read of the short attachment.

I hope it leaves you with a belief in baluns (NOT transformers) and CMCs.

Dave - WØLEV

PS: After some 3-years, I still have not removed the clear plastic
covering the surface of the touch screen.......

EFFECT OF A COMMON MODE CHOKE.docx

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