I would strongly advise purchasing for Hugen's site:
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I haven't had any issues ordering form the alababa site and the delivery to me in the U.S. was prompt.
Purchasing from Hugen will help better characterize the performance of the nanoVNA if we have the same model.
The nanoVNA-H, and nanoVNA-F, have an excellent price-to-performance ratio for a piece of hobbyist test equipment. We should support the original developers.
Mike N2MS