On Sat, Oct 5, 2019 at 11:25 AM, Bo, OZ2M wrote:
¡.. When it comes to the NanoVNA numbers may be somewhat confusing. I for one do
have some difficulties sorting one H/W from the other ¡..
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Bo, the different hardware is the easiest to sort out if you know the historical background. Here is what I have learned:
1. In 2016 edy555 created the open source NanoVNA project on GitHub. I'm not sure why he did not commercially manufacture the device, but ¡..
2, In early 2019 hugen cloned the open source schematic, manufactured the NanoVNA with frequency range expansion and NanoVNA Sharp software.
3. hugen's product is the black NanoVNA with shields on CH0 and CH1.
4. Noting the successful and positive feedback from buyer's of hugen's product, other Chinese manufacturers soon started selling clones of the clone.
5. There appeared a white clone with salamander design and a black clone without shields on CH0 and CH1.
6. hugen's clone and all the subsequent clones use the same edy555 schematic design. It is a testament to the robust nature of edy555's design that, performance wise, none of our group member's have been able to demonstrate a difference between the three different clones.
7. In September of this year another NanoVNA was marketed. It is called the NanoVNA-F. The NanoVNA-F is RTOS based, has a 4.3" display, and has a upper frequency limit of 1 GHz. It hasn't been out long enough for end user's to give their reviews but that should start happening soon. Out of the box it does not have a software program ready to use, such as NanoVNA-Sharp or Rune's nanoVNA-saver.
8. edy555 has asked hugen to re-name his product to NanoVNA-H to distinguish it.
So as of now, there are only two hardware versions being sold: The NanoVNA (-H) and the NanoVNA-F. Both edy555 and hugen have started development on a version 2 device, so "stay tuned to a theater near you".
The different firmware versions is another can of worms that hopefully someone else will open.
Herb
