You have just proven his point, how do you think that the rest of us figured this one out? We bought the module and played with it. Anyway get this: https://www.aliexpress.com/item/4001035772795.html

There are plenty of serial to BT or WiFi modules available that work with NanoVNA practically out of the box. Why do people insist on reinventing the wheel? <manfred@...> wrote:

Use a laptop, use a BT to serial or WiFi to serial adaptor. <bdewitt@...> wrote:

Message test. If you do not see the previous sentence in large font, the group is setup to strip HTML formatting. gmail.com@groups.io> wrote: to messages from other users.

Official retailers are listed on the official site: https://nanovna.com/?page_id=121 <jnojr@...> wrote:

Any 0805 resistor will do, they are all "non inductive". Just search for SMD resistors. You usually get a couple with that board kit. <gervail.antoine@...> wrote:

Those are good up to ~100MHz, really useful for all sorts of small components. Don't overpay for it, these usually go for ~$3: https://s.click.aliexpress.com/e/_DB7YAkD A really useful addition when u

Terminate port 1 with a 50Ω load, measure S21. Add ~10db to the trace and more or less you get your safe limits. <quineatal@...> wrote:

For all frequencies above ~300MHz H4 uses harmonics of the clock generator so it hurts the dynamic range. innovativetimingsystems.com@groups.io> wrote:

H4 is a wrong device for that range. <ray@...> wrote:

Authorized stores are listed at nanovna.com <sim31_team@...> wrote:

Why would you buy a clone when you can get the original for less? <sim31_team@...> wrote:

If you are going to do this, don't do it with single frequencies, do a full sweep. Anyway, multiple people did this before and posted on this same list. <quineatal@...> wrote:

HT antennas are designed to work with your device in your hand ... <quineatal@...> wrote:

NanoVNA Saver is the standard under Linux, for updates dfu-util <william.northcote@...> wrote:

H4 has one clock. If you are comparing results, the first thing you have to do is to eliminate the firmware as much as possible (extrapolation is the biggest issue if you are not hitting the same poin

Boot in the DFU mode and flash again (you probably flashed the H4 firmware). If your device does not show up in DFU mode you will need to get a $5 programmer and flash it that way. <william.northcote=

In the frequency range that Sark supports, NanoVNA is lab grade. Only nice feature that Sark has is the sinusoidal output that is adjustable.

Not sure if source is available but firmware is, for example: https://groups.io/g/nanovna-beta-test/message/4680 Anyway NanoVNA Saver has it implemented and is not device dependent ... <jca1955=sbcglo

More memory and faster processor: more features like more points and faster scanning.