Tim,
Do you have to install some firmware on your nanovna for it to work?? And that you have to make sure it is certain nanovna?? not all will work.?
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Firmware is something called Dislord?
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I have NanoVNA-H but not the H4.??? Will the NanoVNA-H work which has a 2.8" screen?
This is what it is.? Note, I got it much cheaper in the past - but inflation these days...
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Probably best it have its own topic for using NanoVNA for matching crystals.
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Anyways, I went searching, I found this link:
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Look at the text:
Due to the discontinuation of NXP SA612A, we started to produce compatible chip ZeeTK NE602A, but due to the different chip manufacturing process, there is a slight difference between the two in the use of harmonics, new compatible ZeeTK NE602A NanoVNA-H rev3.7 and NanoVNA-H4 rev4.4 version hardware schematic.
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Daniel KK4MRN
