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Re: NanoVNA and PC.

 

In the absence of solutions I have returned to the original Firmware. With it I can manage my NanoVNA from the PC with the usual software (NanoVNA-App, NanoVNA-Sharp, NanoVNA-Server).
Too bad not being able to enjoy the 401 points and manage it at the same time from the PC.

Thank you all.
Antonio - EA7HJ


Re: NanoVNA-F questions

Dr.Alexander Hahn
 

Thank you for the info, Jempi. But is this firmware version the correct
one for my nanoVNA-F (not V2!) by sysjoint?


amazon.co.uk NanoVNA with 303 chip #buying #nanovna-h4

 

Hi all.
On amazon.co.uk I bought a NanoVNA from AllAboutFun. It had the STM32F302 chip. I contacted the company and in their reply they said

According to your question, we have communicated with the supplier.
This is an open source product, and the STM32F303CCT6 chip is currently out of stock.
We will definitely only use STM32F303CCT6 in the future.

I returned it to amazon and was refunded.

I then bought this one for ?114.18
Nooelec NanoVNA-H 4 Premium Bundle - Vector Network Analyzer Kit from Authorized Distributor with 50kHz-1.5GHz+ Portable VNA (4" LCD), EMI Shielding, Calibration Kit, 6pc Attenuator Kit and Much More!
Brand NooElec

It arrived this morning and I can confirm it has the ST32F303CCT6 chip in it.

I hope this helps UK users.
Colin MM5AGM


Re: NanoVNA-F questions

 

HI, Pse Check



Latest version 1.0.3 Sep 9-21

Suc6

JP


Re: Where to buy a NanoVNA H4 HW rev 4.3?

 

Hello Erik.

Zeenko's NanoVNA H4 is not a good NanoVNA?
I have a Nanovna but i want to buy an H4.

Regards
¹ó¨¦±ô¾±³æ

El vie., 3 dic. 2021 12:16, Erik <dl1ecd@...> escribi¨®:

Looking for an approved vendor Aliexpress (Zeenko Store) without success.
Where to buy a NanoVNA H4 HW rev 4.3?
--
73 de dl1ecd, Erik









Where to buy a NanoVNA H4 HW rev 4.3?

 

Looking for an approved vendor Aliexpress (Zeenko Store) without success.
Where to buy a NanoVNA H4 HW rev 4.3?
--
73 de dl1ecd, Erik


Re: NanoVNA-F questions

Dr.Alexander Hahn
 

Thank you, John, I'll do that!


Re: NanoVNA-F questions

 

Alex,
You might want to ask in the NanoVNA-F group:
/g/nanovna-f

--John Gord

On Thu, Dec 2, 2021 at 03:51 PM, Dr.Alexander Hahn wrote:


I've got an used NanoVNA-F by sysjoint.
It shows:
Version: Firmware 0.1.5
Frequency: 10k to 1,5GHz
Build time: May 17 2020
etc..
My questions are: Which version have I got and is there a new firmware out for
it?
I've looked at the sysjoint.com page and downloaded the manual, but I see in
the files folder of this group that there are new firmware versions.
Thanks, Alex


NanoVNA-F questions

Dr.Alexander Hahn
 

I've got an used NanoVNA-F by sysjoint.
It shows:
Version: Firmware 0.1.5
Frequency: 10k to 1,5GHz
Build time: May 17 2020
etc..
My questions are: Which version have I got and is there a new firmware out for it?
I've looked at the sysjoint.com page and downloaded the manual, but I see in
the files folder of this group that there are new firmware versions.
Thanks, Alex


Re: NanoVNA and PC.

 

OK thanks! Got it!

Zack

On Thu, Dec 2, 2021 at 11:34 AM Larry Rothman <nlroth@...> wrote:

It's Hugen's release:

On Thursday, December 2, 2021, 12:28:21 p.m. EST, Zack Widup <
w9sz.zack@...> wrote:

Where did you find this firmware? I can't seem to find that version
(20211121) anywhere.

73, Zack W9SZ

On Thu, Dec 2, 2021 at 9:51 AM A. via groups.io <ea7hj@...>
wrote:

I am a rookie in Nanovna but not in electronic and computer skills. I am
45 years old radioamateur.
My problem is that my NanoVNA-H4 with original firmware of 20200221 works
perfectly with all PC applications, but when I update it with the latest
Dislord Nanovna-H4_20211121 firmware, it stops working with PC programs.
I'm using W-10 64 Bits.
It is normal?. Any solution?. Up to what version can I go up without
losing that possibility?
Very grateful in advance.
Antonio - EA7HJ
















Re: NanoVNA and PC.

 

It's Hugen's release:

On Thursday, December 2, 2021, 12:28:21 p.m. EST, Zack Widup <w9sz.zack@...> wrote:

Where did you find this firmware? I can't seem to find that version
(20211121) anywhere.

73, Zack W9SZ

On Thu, Dec 2, 2021 at 9:51 AM A. via groups.io <ea7hj@...>
wrote:

I am a rookie in Nanovna but not in electronic and computer skills. I am
45 years old radioamateur.
My problem is that my NanoVNA-H4 with original firmware of 20200221 works
perfectly with all PC applications, but when I update it with the latest
Dislord Nanovna-H4_20211121 firmware, it stops working with PC programs.
I'm using W-10 64 Bits.
It is normal?. Any solution?. Up to what version can I go up without
losing that possibility?
Very grateful in advance.
Antonio - EA7HJ






Re: NanoVNA and PC.

 

Having your device connect with DefuseDemo when it is in DFU mode is not the same as in normal running mode - there are 2 different drivers.
Before going any further - Verify when you connect your running device to the PC that it comes up as a comm port and connect to that comm port using the terminal program.

On Thursday, December 2, 2021, 11:58:02 a.m. EST, A. via groups.io <ea7hj@...> wrote:

On Thu, Dec? 2, 2021 at 08:06 AM, DiSlord wrote:


When writing a bug report, it is good practice to provide as detailed a
description as possible.
Worked with everyone, which ones? What does it not work with? How does it
manifest? The device is not recognized in the system, or there is no
connection.
Thank you for answering DiSlord.
The programs that I try to use are Nanovna, Nanovna-APP, Nanovna-Saver and Nanovna-Sharp. All work with the original firmware v0.5.0 20200221 but the aforementioned programs are not connected with the last version DiSlord 20211121 that is the only one I have tried, at 101 points (either at 401 points). But Yes, it connects perfectly with the DfuSeDemo.
I do not report a problem, but a question in case someone knew the solution to my situation.
By the way, fantastic the latest firmware version. Thanks to Lot.
Regards


Re: NanoVNA and PC.

 

Where did you find this firmware? I can't seem to find that version
(20211121) anywhere.

73, Zack W9SZ

On Thu, Dec 2, 2021 at 9:51 AM A. via groups.io <ea7hj@...>
wrote:

I am a rookie in Nanovna but not in electronic and computer skills. I am
45 years old radioamateur.
My problem is that my NanoVNA-H4 with original firmware of 20200221 works
perfectly with all PC applications, but when I update it with the latest
Dislord Nanovna-H4_20211121 firmware, it stops working with PC programs.
I'm using W-10 64 Bits.
It is normal?. Any solution?. Up to what version can I go up without
losing that possibility?
Very grateful in advance.
Antonio - EA7HJ






Re: NanoVNA and PC.

 

On Thu, Dec 2, 2021 at 08:06 AM, DiSlord wrote:


When writing a bug report, it is good practice to provide as detailed a
description as possible.
Worked with everyone, which ones? What does it not work with? How does it
manifest? The device is not recognized in the system, or there is no
connection.
Thank you for answering DiSlord.
The programs that I try to use are Nanovna, Nanovna-APP, Nanovna-Saver and Nanovna-Sharp. All work with the original firmware v0.5.0 20200221 but the aforementioned programs are not connected with the last version DiSlord 20211121 that is the only one I have tried, at 101 points (either at 401 points). But Yes, it connects perfectly with the DfuSeDemo.
I do not report a problem, but a question in case someone knew the solution to my situation.
By the way, fantastic the latest firmware version. Thanks to Lot.
Regards


Re: NanoVNA and PC.

 

I check NanoVNA Sharp MOD v3
/g/nanovna-users/message/5406
This very old software, and can work if on device selected 101 points (STIMULUS->SWEEP POINTS->101)

This problem also related to NanoVNAPartner, need set 101 point (all old software hardware coded and use 101 points)


Re: NanoVNA and PC.

 

When writing a bug report, it is good practice to provide as detailed a description as possible.
Worked with everyone, which ones? What does it not work with? How does it manifest? The device is not recognized in the system, or there is no connection.


Re: NanoVNA and PC.

 

I have DiSlord's latest FW in my H and it is working fine with PC software.
Can you talk to your H4 console using a terminal program? I use TeraTerm for that.
If you can talk using a console application, you may have an issue elsewhere.

On Thursday, December 2, 2021, 10:51:25 a.m. EST, A. via groups.io <ea7hj@...> wrote:

I am a rookie in Nanovna but not in electronic and computer skills. I am 45 years old radioamateur.
My problem is that my NanoVNA-H4 with original firmware of 20200221 works perfectly with all PC applications, but when I update it with the latest Dislord Nanovna-H4_20211121 firmware, it stops working with PC programs. I'm using W-10 64 Bits.
It is normal?. Any solution?. Up to what version can I go up without losing that possibility?
Very grateful in advance.
Antonio - EA7HJ


NanoVNA and PC.

 

I am a rookie in Nanovna but not in electronic and computer skills. I am 45 years old radioamateur.
My problem is that my NanoVNA-H4 with original firmware of 20200221 works perfectly with all PC applications, but when I update it with the latest Dislord Nanovna-H4_20211121 firmware, it stops working with PC programs. I'm using W-10 64 Bits.
It is normal?. Any solution?. Up to what version can I go up without losing that possibility?
Very grateful in advance.
Antonio - EA7HJ


Re: Precision Loads.

 

Joe,

Here is what the circuitry looks like at the SO239 connector on the MFJ 259B. The diodes have a Peak Inverse Voltage of 15V so it does not take much of a mistake to destroy them. I

Roger


Re: Precision Loads.

 

On Wed, Dec 1, 2021 at 09:22 AM, Joe WB9SBD wrote:

My local club has a MFJ-259 analyzer. that we know is way out of wack.
it needs re calibration.
Joe,

I suspect you need more than re-calibration!

The MFJ is not that accurate to begin with and only needs calibration if it was done poorly at the factory (this happens at MFJ) or you have replaced components.

I own a MFJ-259-B and they are sensitive to having the front end diode detector bridge blown out from static or RF. It happened to mine and I had to send it back for repair.

Here is what I suggest you do to see if you have a hardware failure. Under 10 MHz. you should get good SWR and R/X readings even with a crummy load. Just take some resistors from your bench poke one side down the SO239 and hold the other side to the threaded part with a clothespin, See what you get for readings at from 2 to 10 MHz with 10, 25, 50, 75, 100 and 200 resistors.. You should be in the ballpark for SWR and R. If you are not you are in for a repair job.

Roger