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I agree, if the seller has a high number of transactions, a score of less than 99% usually tells the true story. In those cases I also try to read some of the negative ratings and specially the follow

The really sad part about e-bay (because they are in the business of making money) is that once upon a time feedback meant something. For example your feedback stayed with you year after year !? So

I received my white nanVNA 20days back. It has 650mah battery and is ver3.4 Pf course no shields , neither any case.

I always consider seller ratings and think of the percentage in reverse. A seller with 96 has 4% unhappy 98 has half of that 99 has 1/4th of 96%. 99.5% has 1/8 the dissatisfied customers of 96. If you

Another problem with the chinese sellers is that sometimes the language barrier is just too much for them and they just say "yes-yes" to everything without really understanding the question and just

This ebay item looks very much like the unit I purchased off of Amazon recently (< 4 weeks). Attached are photos inside mine. Assuming the photos come through. I am new to NanoVNA and do not know

There seems to be a lot of them on there claiming to have the latest unit. What really gets me is not just the false advertisements but this line: "Shipping Terms - For remote regions, we will charge

Hi One small note This is not "PL-259 calibration" it is a PL-259 calibration-kit for calibrating SO-239.....

Look at the version screen SW build october 3, 2019 for sure no v3.4 -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files: /g/nanovna-users/files Erik, PD0EK

On Tue, Feb 11, 2020 at 04:10 PM, <nanovnagroup@...> wrote: But in the mean time if any of you eagle eyed guys want to take a shot at this and see if this is really a v3.4 unit here it is:

More negative reviews than I would like to see and many of them appear pretty serious.

I asked this "US Ship" ebay seller straight up and he replied that yes, his NanoVNA has in fact a v3.4 PCB. I also asked this morning on a follow up message if he could post some pictures of the PCB

Thank you everybody who answered my question. I got the answer I wanted. 73/Torbjorn

Hi Kurt, That would be nice! My nanovna-h and the torque wrench are not shipped yet. At the flea market in Rosmalen (NL) I will look for leads (hope for Huber Suhner for reasonable prices) and

Hi, Interpolation problem not only nanovna exist. If you use nanovna saver 10 segment = 1010 points data. But another interpolation errors occured, because double calibration not ok. Nanovna saver

See Erik's msg # 10886 for why a 101 point calibration performed using a wide frequency span, may not be accurate when applied to a 101 point measurement in a different frequency span. - Herb

Greetings, Using the "NanoVNA-Saver" PC app to control my mid quality nanoVNA I spent considerable time testing the high impedance measurement accuracy. I had previously made up a variety of loads

Unless you understand why it should work you should always recalibrate when changing frequency span. Search the group for longer explanation In short. A linear interpolation in two dimensions between

Somewhat longer answer Calibration creates a set of known calibration data points. 101 in total Any frequency used during measurement that does not uses exactly one of these calibrated data points

Best is to ALWAYS calibrate the device for any measurement using exactly the same frequency span you are using in the measurement. Only when you know why it should work you are allowed to use a