Benjamin | July 26, 2021

Joop | June 30, 2021

William | June 16, 2021

Extremely satisfied with the hardware and software.

For 4" NanoVNA V2 Plus4

I have really enjoyed the “Plus 4” version. I also have an official V2.2 VNA from Tindie but I am enjoying the enhancements of the Plus 4. The larger display is nice but the reality is that the most utility comes from connecting the unit to a PC COM PORT and using the software interface. This unit is quite accurate and puts a previously unaffordable piece of test equipment into the hands of hobbyists, technicians, and engineers. Thanks to all the folks who have made this possible.

I gave 1-stars for communications due to the fact that though I purchased both units from Tindie, Tindie failed to respond to my request for purchase price credit.

Response from HCXQS group | June 16, 2021

Hi, if you have any questions you can always use "Message Seller" on the right hand side of the page. Thanks

Louis | May 18, 2021

Stan | May 18, 2021

Very disappointed that the main CPU does not have FPU.

For 4" NanoVNA V2 Plus4

Received the NanoVNA V2 Plus4 well packaged and delivered before the expected delivery date. Thank you.
Very disappointed that the main CPU in the VNA does not have the Floating Point Unit (FPU) as previous units do have them. They should be advertised as not having the FPU and sold for less. The addition computational speed on a VNA would be a great benefit.
Will these VNA units be replaced??
Not happy!!

Response from HCXQS group | May 21, 2021

Hello, all VNA calculations use fixed point math and do not use floating point. The developer verified there is zero difference in measurement speed with or without FPU enabled, so it is disabled in all firmware builds. The sweep speed above 140MHz is always 400 points/s. As FPU is disabled in all firmware releases, it will make no difference if it is present or not.