USB isolator suggestions?
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
Від Dragan Milivojevic · #38871 · 12/08/24
USB isolator suggestions?
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:
Від Dragan Milivojevic · #38866 · 12/07/24
USB isolator suggestions?
Use a laptop, use a BT to serial or WiFi to serial adaptor. <bdewitt@...> wrote:
Від Dragan Milivojevic · #38841 · 12/02/24
Закрито HTML message editor not available for this group ?
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.
Від Dragan Milivojevic · #38838 · 12/02/24
"Fake" NanoVNAs?
Official retailers are listed on the official site: https://nanovna.com/?page_id=121 <jnojr@...> wrote:
Від Dragan Milivojevic · #38744 · 11/25/24
Measure transformers, inductors and trap filters
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:
Від Dragan Milivojevic · #38528 · 11/07/24
Measure transformers, inductors and trap filters
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
Від Dragan Milivojevic · #38522 · 11/07/24
Why so many different names for the firmware .DFU files?
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:
Від Dragan Milivojevic · #38515 · 11/07/24
Why so many different names for the firmware .DFU files?
For all frequencies above ~300MHz H4 uses harmonics of the clock generator so it hurts the dynamic range. innovativetimingsystems.com@groups.io> wrote:
Від Dragan Milivojevic · #38509 · 11/07/24
Why so many different names for the firmware .DFU files?
H4 is a wrong device for that range. <ray@...> wrote:
Від Dragan Milivojevic · #38504 · 11/06/24
Nano VNA reference with 4'' screen
Authorized stores are listed at nanovna.com <sim31_team@...> wrote:
Від Dragan Milivojevic · #38482 · 11/02/24
Nano VNA reference with 4'' screen
Why would you buy a clone when you can get the original for less? <sim31_team@...> wrote:
Від Dragan Milivojevic · #38480 · 11/02/24
Testing NanoVNA H4 power settings
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:
Від Dragan Milivojevic · #38460 · 10/27/24
Testing HT antennas
HT antennas are designed to work with your device in your hand ... <quineatal@...> wrote:
Від Dragan Milivojevic · #38083 · 9/25/24
Linux software for the nano?
NanoVNA Saver is the standard under Linux, for updates dfu-util <william.northcote@...> wrote:
Від Dragan Milivojevic · #38069 · 9/24/24
Effective Comparisons?
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
Від Dragan Milivojevic · #38056 · 9/23/24
VNA bricked.
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=
Від Dragan Milivojevic · #37988 · 9/19/24
Sark 110
In the frequency range that Sark supports, NanoVNA is lab grade. Only nice feature that Sark has is the sinusoidal output that is adjustable.
Від Dragan Milivojevic · #37976 · 9/18/24
Is this a good choice?
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
Від Dragan Milivojevic · #37966 · 9/17/24
Is this a good choice?
More memory and faster processor: more features like more points and faster scanning.
Від Dragan Milivojevic · #37957 · 9/17/24