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If you dont mind using CMD Line Interface, try dfu-util to install firmware. See to install. Real easy to use once you have .dfu file downloaded go to Terminal/CLI and type command:

dfu-util -a 0 -D <full pathname of .dfu file>

I'm on a MAC so no driver needed. See Bill Cody message #16933 working Windows driver:

Paul

Hello, I use Nano Solver with Lite64 end Nanovna V2 with PC.
I find very useful John Smith software, however the work of Dislord FW is great to use standalone.
*Sent:* Friday, September 30, 2022 at 7:43 PM
*From:* "Stan Dye" <standye@...>
*To:* [email protected]
*Subject:* Re: [nanovna-users] New member with a NanoVna H4
That is a reasonably recent firmware version - it should work fine for your
intended use case. There are a few added features in the latest release
version of firmware from DiSlord (ver 1.2.00) - mostly for direct use of
the device without a computer, so these may not be of great interest to you.
Stan

On Fri, Sep 30, 2022 at 11:28 AM Pete Harrison <rockfisher@...>
wrote:

Hi all, Ive had my H4 a month now and love it. Im not new to VNA's as use
a Agilent one at work occasionally.
I still cant believe how so much is packed into a small box for such a
brilliant price. Well done to all developers.

My question is , Would it be beneficial to upgrade the firmware? , Plan is
to use it with Joel smiths solver software if i can. (would love to see his
Labview worksheets, but understand his time and effort into it) labview can
be difficult at times, although im used to doing stuff with HPIB with it.

My H4 is as follows :-

version 1.1.01
HW version 4.3 MS

Thanks for letting me join this group, i look forward to any replies and
if i can help others i surely will.

Regards Pete

Best is to carefully read the "Absolute Beginners Guide to the NanoVNA"
which can be found in the files area of this group.

Some older firmware update files are also uploaded in the files section,
but for the most recent ones, go to the Dislord or hugen github
repositories - you can find links to them in the firmware topic of this
group's wiki. The wiki has lots of good info.

StN

Greetings,
Also relatively new to H4 and this group. Where does one locate firmware, release notes and upgrade/downgrade instruction?
Thanks,
Bryan

maybe you can add it...

if i remember right the space on the pcb is there ... add a socket and hack a slit in the case

dg9bfc sigi

Am 30.09.2022 um 21:28 schrieb Damon:

It’s fun when you bridge a lightbulb across it.

I run the DiSLord fw as well. I just wish my Saa-2n had an sd card socket.

You can always revert back to old firmware if the new one is not to your liking.

That is a reasonably recent firmware version - it should work fine for your
intended use case. There are a few added features in the latest release
version of firmware from DiSlord (ver 1.2.00) - mostly for direct use of
the device without a computer, so these may not be of great interest to you.
Stan

On Fri, Sep 30, 2022 at 11:28 AM Pete Harrison <rockfisher@...>
wrote:

Hi all, Ive had my H4 a month now and love it. Im not new to VNA's as use
a Agilent one at work occasionally.
I still cant believe how so much is packed into a small box for such a
brilliant price. Well done to all developers.

My question is , Would it be beneficial to upgrade the firmware? , Plan is
to use it with Joel smiths solver software if i can. (would love to see his
Labview worksheets, but understand his time and effort into it) labview can
be difficult at times, although im used to doing stuff with HPIB with it.

My H4 is as follows :-

version 1.1.01
HW version 4.3 MS

Thanks for letting me join this group, i look forward to any replies and
if i can help others i surely will.

Regards Pete

Hi all, Ive had my H4 a month now and love it. Im not new to VNA's as use a Agilent one at work occasionally.
I still cant believe how so much is packed into a small box for such a brilliant price. Well done to all developers.

My question is , Would it be beneficial to upgrade the firmware? , Plan is to use it with Joel smiths solver software if i can. (would love to see his Labview worksheets, but understand his time and effort into it) labview can be difficult at times, although im used to doing stuff with HPIB with it.

My H4 is as follows :-

version 1.1.01
HW version 4.3 MS

Thanks for letting me join this group, i look forward to any replies and if i can help others i surely will.

Regards Pete

he does it to me even without a lid 73'ss Claudio

perhaps the case is pressing against the display too much, try loosening the screws a bit.
73 Ton

I have a SAA-2N v2_2 with DiSlord v1.3.09 firmware. It is working with Saver 0.5.3.

As Sigi cautioned, no mot place too much force on the N to SMA adapters.

Mike N2MS

and works with nanovna _app (version 210 used here)

and that is in my view the best of them

dg9bfc sigi

ps .. the n sockets are adaptors from sma to n and are NOT well secured to the case .. so do not put tooo much force on them!!

Am 24.09.2022 um 09:33 schrieb tuckvk3cca:

I have the same model. Nice gear, I like the N connectors and solid build. Runs with Dislord and QT but does not like Saver. Driver conflict.

Hello, I have the problem with the nno vna h, that the submenus no longer work.
I was calibrating a range of frequencies, and I stopped. since then the submenus no longer appear. It is practically unusable.
I tried to clean the screen from dust but nothing.

Gerard,

It is important to get the correct termination impedance for a crystal bandpass filter. The resistance and capacitance are in parallel and both have an effect on the filter characteristics. If the load R is too high or too low the filter will shift up or down in frequency. If load C is too high or too low the filter passband characteristics will change and you can get more ripples. You can see all of this in this Murata animated crystal filter video


There are 3 ways to get the proper termination impedance for the crystal filter: RC matching, LC/CL matching or Transformer matching. >> .

The author of that video is using LC matching but he made a mistake in his calculations. He used the wrong calculator and got the wrong value for the matching C. The steps for correct calculation are as follows:

1. The R and C specified by the manufacturer are in the form R//C so a parallel to serial impedance conversion is required at the filter center frequency. This calculator will do the conversion.


In your case 4000 ohms with 1.5 pF in parallel at 45 MHz. equates to 1031 ohms in series with 2.021 pF or Z= 1031 -j1750. We need to match to the complex conjugate of this which is Z = 1031 +j1750.

2. Next we need to design the matching network. This is a typical calculator which gives several matching options


Two solutions are provided: One is L in series and the other is C in series (DC blocking). The calculated values are 1.572uH and 9.358 pF for the former and 1.968uH and 7.957 pf for the latter. Using either of these will results in a termination that looks like 4000 ohms in parallel with 1.5 pf when the matching network is terminated in 50 ohms.

this is what i see when i have the ZadiG, device manager, and DFuse.exe running. when i use DFUSE.exe i am not able to select the device to upload the new FW version to.

Well, I gave it a shot and the vna would not boot. Also found DfuSe is not compatible with this device. Have to use VNA-QT and .bin files, found usable firmware here:

Running DiSlord 1.3.07 now.