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Re: DL2SBA j-vna software
Not necessarily more costly. I have homebrewed the F4GOH Arduino based vna for HF only and it uses that interface. Works well but only up to 60MHz.Sent from my Samsung Galaxy smartphone.
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-------- Original message --------From: Gary O'Neil <n3go@...> Date: 01/08/2019 18:30 (GMT+01:00) To: [email protected] Subject: Re: [nanovna-users] DL2SBA j-vna software DL2SBA¡¯s website indicates:¡°vna/J is an alternative application for the following network analysers miniVNA, miniVNAPRO and miniVNAtiny from mini Radio Solutions and the MAX6 from Jarek, SP83SWJ and Gregor, SP8NTH¡±That series of VNA¡¯s uses a significantly different architecture, and I think one of the Atmel processors. Their cost is much higher also.-- 72/73Gary, N3GO
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Alternative VNA software
Dave (G8KBB) has evolved a most wonderfully robust VNA GUI that he calls myVNA. I believe he is open to sharing the interface with those who might be willing to do the work of adding support for other platforms. MyVNA evolved from the N2PK VNA; but I¡¯m certain it would be straight forward to add support for the NanoVNA by someone skilled in the art.
Dave licenses myVNA for free to amateurs, but maintains control of the source. If somebody is interested in myVNA as a GUI driver for these and willing to volunteer your support; send Dave an email and see what you can work out. Contact Dave either way, and request a license for his software. It imports up to 4 snp files, and enables them to be displayed and compared in all display formats. -- 73 Gary, N3GO |
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Re: Free gift with NanoVNA
I had a similar situation with my eBay vendor and here's my take on what's going on. This is a Catch-22 situation for the eBay vendor. eBay tells their vendors the they must ship using the eBay preferred carrier. That is a company called Speed-PAC. The problem is that Speed-PAC will not accept any merchandise that contains an integrated battery. What's the vendor to do? Some simply remove the battery and ship via Speed-PAC leaving the end user to solve the problem for themselves. Other vendors ship a "free gift" using Speed-PAC and include a note of explanation. This satisfies their requirements with eBay, but leaves us wondering what's going on. They then ship the real merchandise, with battery, using a different carrier. It's a clever solution but it's annoying for the end user to be sure. In my case it took a little over two weeks for the "free gift" to arrive and then a little less than two more weeks for the VNA to show up. Yes, the outer cardboard box was crushed but the contents were fine and as expected.
I offer this for whatever you might think it's worth, Larry |
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Re: Order a original nanoVNA
Agreed. Mine took 7 weeks to arrive and the box was smashed, but the unit in a clear plastic box was alright. Shipping was inexpensive, less than it would cost for me to ship the same box across town. I doubt the seller could answer any questions about the thing.
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Peter On Aug 1, 2019, at 12:04 PM, Stuart Landau via Groups.Io <stuartl73@...> wrote: |
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Re: Order a original nanoVNA
I was going to mention this weeks ago. However, decided it will take some effort. Nevertheless I will toss it out. It may benefit all interested users of the VNA product going forward.
We need a score card or some sort of a matrix as to whom the vendors are and the experience of the buyer(s), good, great, poor, horrible, dis honest or what ever. The idea that a user group is keeping track and a tally, may motivate all the "sellers" to do an up front better job like their competition, or simply drop the product as there is too much effort in sales and support. Suggestions? Comments? Alan W4AMV ________________________________ From: [email protected] <[email protected]> on behalf of Stuart Landau via Groups.Io <stuartl73@...> Sent: Thursday, August 1, 2019 4:04 PM To: [email protected] <[email protected]> Subject: Re: [nanovna-users] Order a original nanoVNA In my experience, few of the Internet sellers have any knowledge of electronics test items; they sell a very wide variety of items from clothing to cooking pans. I was lucky and got my nanovna quickly, without damage and working properly, a few days ago. The shipping cost, via mail to the United States was very low. Stuart K6YAZLos Angeles, USA -----Original Message----- From: Hans J Albertsson <hans.j.albertsson@...> To: nanovna-users <[email protected]> Sent: Thu, Aug 1, 2019 8:05 am Subject: Re: [nanovna-users] Order a original nanoVNA I'm currently in the process of buying from Maggie at the link Hugen provided, and the shipping charge (to Sweden) seems to be nowhere near $40. I'll report when i know more exactly. Den tors 1 aug. 2019 16:49Dr. David Kirkby from Kirkby Microwave Ltd < drkirkby@...> skrev: On Thu, 1 Aug 2019 at 06:00, <hugen@...> wrote:I'm sorry, I don't have experience in international sales, I need to paytry |
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Re: DL2SBA j-vna software
DL2SBA¡¯s website indicates:
¡°vna/J is an alternative application for the following network analysers miniVNA, miniVNAPRO and miniVNAtiny from mini Radio Solutions and the MAX6 from Jarek, SP83SWJ and Gregor, SP8NTH¡± That series of VNA¡¯s uses a significantly different architecture, and I think one of the Atmel processors. Their cost is much higher also. -- 72/73 Gary, N3GO |
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Re: Order a original nanoVNA
In my experience, few of the Internet sellers have any knowledge of electronics test items; they sell a very wide variety of items from clothing to cooking pans. I was lucky and got my nanovna quickly, without damage and working properly, a few days ago. The shipping cost, via mail to the United States was very low.
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Stuart K6YAZLos Angeles, USA -----Original Message-----
From: Hans J Albertsson <hans.j.albertsson@...> To: nanovna-users <[email protected]> Sent: Thu, Aug 1, 2019 8:05 am Subject: Re: [nanovna-users] Order a original nanoVNA I'm currently in the process of buying from Maggie at the link Hugen provided, and the shipping charge (to Sweden) seems to be nowhere near $40. I'll report when i know more exactly. Den tors 1 aug. 2019 16:49Dr. David Kirkby from Kirkby Microwave Ltd < drkirkby@...> skrev: On Thu, 1 Aug 2019 at 06:00, <hugen@...> wrote:I'm sorry, I don't have experience in international sales, I need to paytry |
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Re: Order a original nanoVNA
I'm currently in the process of buying from Maggie at the link Hugen
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provided, and the shipping charge (to Sweden) seems to be nowhere near $40. I'll report when i know more exactly. Den tors 1 aug. 2019 16:49Dr. David Kirkby from Kirkby Microwave Ltd < drkirkby@...> skrev: On Thu, 1 Aug 2019 at 06:00, <hugen@...> wrote:I'm sorry, I don't have experience in international sales, I need to paytry |
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Re: Order a original nanoVNA
Dr. David Kirkby from Kirkby Microwave Ltd
On Thu, 1 Aug 2019 at 06:00, <hugen@...> wrote:
I'm sorry, I don't have experience in international sales, I need to pay I have never looked at Alibaba, but I believe that the buyer protection is a lot poorer than eBay, so I would be relevant to purchase from there. There¡¯s no need to spend $40 on DHL shipping. The post office should be much cheaper. Mine from eBay had the screening, battery, 4 traces and 900 MHz. The display didn¡¯t work but, but Hugen said that they are delicate. The seller replaced it, so I can not complain. The biggest issue is construction quality. Personally I would ask eBay sellers to confirm the units they sell have what you are looking for. Then you have yourself far better covered than via Alibaba. Dave. -- Dr. David Kirkby, |
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Re: Order a original nanoVNA
jim
Good ...Eliminates the "middle-man" I chose (taobao focus) and their "handleing fees"
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Jim On Thursday, August 1, 2019, 5:00:26 AM UTC, hugen@... <hugen@...> wrote:
I'm sorry, I don't have experience in international sales, I need to pay an expensive fee for international couriers, using DHL is about $40, I try to get my friends to sell through alibaba, but the courier fee will still be higher than the ebay seller. |
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Re: Order a original nanoVNA
This is precisely what we've been looking for from the European (and
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possibly the US) horizon, a way to know what hw version we're buying, even if our proficiency in chinese is non-existent. Den tors 1 aug. 2019 07:00 <hugen@...> skrev: I'm sorry, I don't have experience in international sales, I need to pay |
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Re: Possible location of latest VNA source code??
On Thu, Aug 1, 2019 at 06:14 AM, Lapo Pieri wrote:
After leaving the DFU mode, it will work normally after rebooting.Most developers, it is easier to debug through swd mode using st-link or daplink. Thank you£¡ hugen |
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Re: Free gift with NanoVNA
I have had that several times with other items from China, perhaps you are right.
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Peter On Jul 31, 2019, at 4:42 PM, vbifyz <3ym3ym@...> wrote: |
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Re: nano cases
I think the real value of the nanovna is as a teaching tool. I already have really good accurate scalar analyzers, but no experience with a VNA.
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Stuart K6YAZ Los Angeles, USA On Jul 29, 2019, at 8:19 AM, Frank S <ka2fwc@...> wrote: |
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Re: nano cases
Thanks! The jog switch is actually easier to use with the case, it just feels more natural. The protection is also important, it should prevent the USB and switches from ever breaking off.
The reason for that shape is that I wanted it longer so I can use the cover as a stylus, it's a bit flimsy but still works well and the screen don't get all smudgy. OnShape is an online CAD tool that runs in the web-browser, it's free for non-commercial use (all drawings are public with free account). You can export files for several popular CAD packages. |
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Re: nano cases
Excellent design! I like the protective mounds around the power and jog switches. And of course, you can never have enough storage.
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Personally, I would have put the storage on the end opposite the sma connectors just so it would still fit a shirt pocket but that's just me. What design apps will work with the CAD model... nevermind, it's standard STL files. Already playing with it! Larry On Wed, Jul 31, 2019 at 06:38 PM, <ornotermes@...> wrote:
I made a case for the white one, it's a bit fiddly (washers and such) to mount |
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Re: nano cases
I made a case for the white one, it's a bit fiddly (washers and such) to mount because i added som distance to the back PCB as the battery was a bit cramped.
Over all, it's pretty good and adds good value. I looked at using light pipes but it wouldn't work out well, but print in a (semi) transparent plastic and you can see the LEDs through the walls. It's licensed as CC BY-SA and the CAD models (OnShape) is published so go nuts with it and make it useful to your specific needs. |
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Re: Smith chart impedance printout
Lapo Pieri
Hi Serge,
00:20 Wed 31 Jul 19 , Serge wrote: My +1 to display as R +/-Jx.:-) Even will be ideal to display as line graphics: SWR, R and JX !I haven't had time to work on it but it could be done, I'll take a look Lapo, IK5NAX |
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Re: Possible location of latest VNA source code??
Lapo Pieri
18:26 Tue 30 Jul 19 , hugen@... wrote:
Since powering up from DFU mode, aic3204 fails to be initialized at power-on, which will cause I2C abnormality. Re-powering up will make aic3204 normal initialization work normally.Ok, so it's what it has to do, no instability. Fine. One can wait some seconds or just disconnect the battery when working on fw. Thank you Lapo, IK5NAX |
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