With the high price of the V2Plus4, lack of firmware support and lower frequency range, I recommend the LiteVNA. The H4 may be good enough for you personally but I tell people that if you want to experiment beyond 300MHz, get something else. You can see both the H4 and original NanoVNA. Some of this data was provided by various owners. ' I have posted data showing how some of the low cost VNAs compare. Once you move beyond that 300MHz, shit hits the fan. I was pretty impressed when I first saw this and it was a major letdown to see the higher end V2Plus4 not performing at least as well. My original NanoVNA is about 10dB higher. Noise floor for my H4 up 300MHz is around 85dB. UHF covers 3GHz which unless they have further increased the range of the original NanoVNA and H4, you are missing half the band as the highest I have seen them allow was 1.5G.
To keep absolute compatibility or exclude devices using the lesser MCU's.I think that will depend on your definition of "suitable". HW4.3 version of the H-4, it could limit the development of all H-4 devices Not to mention any future development could be possibly questionable for Not all B variants will actually have more FLASH/RAM and even if the dieĬontains it there is no guarantee that they will be fully functional and The H4 architecture does require more than 128KB flash, hence theĪdditional features over the H2.8 such as 401 points. Substituting it for the B variant that has half the flash and less ram is Not to mention any future development could be possibly questionable for HW4.3 version of the H-4, it could limit the development of all H-4 devices to keep absolute compatibility or exclude devices using the lesser MCU's.Ī common example.It's one thing substituting a 303 with a 302 (Fine if the additionalįeatures of the 303 are never used or will never be used in the future) But
Not all B variants will actually have more FLASH/RAM and even if the die contains it there is no guarantee that they will be fully functional and why they are binned as B variants. The H4 architecture does require more than 128KB flash, hence the additional features over the H2.8 such as 401 points. Unless you are planning to do a custom firmware what difference does itĪnyway, microcontrollers have "paper" specifications and real ones:Ī common example.It's one thing substituting a 303 with a 302 (Fine if the additional features of the 303 are never used or will never be used in the future) But substituting it for the B variant that has half the flash and less ram is something else! On Thu, at 08:05 PM, Dragan Milivojevic wrote:
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