Beware of cheap underperforming clones
As of 2023 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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The manual could have some more info about ELECTRICAL DELAY
Leif M 2024/02/08 15:19
The ELECTRICAL DELAY and TIME DOMAIN OPERATION are explained quite briefly in the manual. They could use some more info, like about sign of the figure the user writes to the time delay. I always forget which way it is. TIME DOMAIN OPERATION gives a number for cable lengths. Is it half or what the value time delay needs. And the sign of course.
Sometimes electrical delay and time domain operation functions are easier than whole calibration in a difficult spot.
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