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Re: NanoVNA-Saver 0.2.0 - FW version?
Alessandro I2SVA
On Tue, Nov 19, 2019 at 10:19 AM, Rune Broberg wrote:
Hi Rune, Thanks! As a matter of fact by using NanoVNA v1.03 I got the following info (although I cant see FW version..): Kernel: 4.0.0 Compiler: GCC4.9.3 ... Architecture: ARMv6-M Core variant: Contex-MD Port info: Preemption through NMI Platform: STM32F072xB entry level medium density devices Board: NanoVNA Build Time: Mar 27, 2019 16:28:15 Can I upgrade it to FW 0.5 using the DfuSe USB device firmware upgrade and following the advices I found on this group? Thanks again, Ciao Alessandro i2sva |
Re: running nanoVNA-saver under Linux Mint XFCE
I wouldn't go as far as qbasic but I agree, whenever I see 'python' I
anticipate frustration and trouble. It's a mess. It's a great example of why code re-use doesn't scale well. All too often it's hailed as the platform for everything but the cracks are showing. I was actually pleasantly surprised by how easily nanovna-saver ran for me , so congrats to somebody for that. On Tue, Nov 19, 2019 at 4:49 PM Andy via Groups.Io <punkbiscuit= [email protected]> wrote: It's Python that's a mess, as bad as java. |
Re: NanoVNA-Saver 0.2.0 - FW version?
Hi Alessandro,
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Generally, this means your firmware is so old, there is no way to read the firmware version. -- Rune / 5Q5R On Tue, 19 Nov 2019, 19:17 Alessandro I2SVA, <i2sva@...> wrote:
Hi all, |
NanoVNA-Saver 0.2.0 - FW version?
Alessandro I2SVA
Hi all,
I noticed that moving to NanoVNASaver 0.2.0 > About, the NanoVNA Firmware version displayed is: NanoVNA Version ? Has anyone noticed the same thing or I have something wrong? NanoVNAe works perfectly in conjunction with the NanoVNASaver; I was curious to understand which FW release is installed in my device and cannot see..! Thanks for help, 73 Alessandro i2sva |
Re: Is the NooElec nanoVNA any good?
Many have measured and tested it but found no noticeable difference between the variants. Probably the raw material comes from the same source, pcb is the same. So why would it differ unless the quality was properly controlled. They make sure that there is a slight difference between what they make and what they are compared to what is produced at the neighboring plant.
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Re: Is the NooElec nanoVNA any good?
Looking again at your pic from Amazon, I notice it is sold by KKMoon. I brought two NanoVNAs from this same seller there. When they arrived one was a clone and the other appears to be a hugen original. You really can't tell what you're actually going to get from looking at the pictures in the adds.
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Re: Is the NooElec nanoVNA any good?
What is pictured there is missing the "CH0" on the bezel. I think hugen would tag that as a clone That said, I have not seen where the clones have been shown to perform any worse. All NanoVNAs can be updated with a choice of new firmware with larger font, TDR, extended marker functions, etc.
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Re: Is the NooElec nanoVNA any good?
The unit can operate as a stand-alone, unlike the many SDRs out there.
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However, it can also operate with a PC, laptop, Android, and a number of other platforms. With PC support, you get a MUCH larger screen, but PC is not required for complete operation. You don't really need a PC if you can read the small print on the color display. The FW is continually being upgraded and additional functionality is being augmented on a regular basis. I'd suggest, as a newbie, you read some of the previously referenced tutorials on the uses and capabilities of a VNA. It goes well beyond just sweeping antennas for SWR. A VNA is an EXTREMELY capable instrument for measurement of RF parameters of many flavors. I'd strongly recommend you read the Agilent tutorials previously referenced on this group, I think last week. Check the archives. Dave - W?LEV On Tue, Nov 19, 2019 at 4:58 PM Mike K0JTA <mike@...> wrote:
First of all, I am a total newbie. I ordered in the blind, only looking --
*Dave - W?LEV* *Just Let Darwin Work* *Just Think* |
Re: BH5HNU NanoVNA-F Aliexpress site no longer there?
Hello June I have joined the group and I will discuss the situation on that group. I am very keen to buy the right product and support the right people.
Regards Conrad ________________________________ From: [email protected] <[email protected]> on behalf of June via Groups.Io <vermilion1990@...> Sent: 19 November 2019 05:16 To: [email protected] <[email protected]> Subject: Re: [nanovna-users] BH5HNU NanoVNA-F Aliexpress site no longer there? Dear Conrad, I'm a member of NanoVNA-F development team, because of BH5HNU's personal problem, the hamelec aliexpress store is no longer selling product now, but we'll reopen a new store soon, it maybe takes 2-3 weeks. You can get newest infor from our own groups: /g/nanovna-f When the new store open we'll release claims at that group at the first time. On Mon, Nov 18, 2019 at 11:52 PM, Conrad, PA5Y wrote:
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Re: Is the NooElec nanoVNA any good?
First of all, I am a total newbie. I ordered in the blind, only looking for the "NanoVNA" word or label:
This particular package had the added cabling, which was of interest to me. My needs are minimal; -At this point, I only have an interest in sweeping my HF ham antennas. Question: As in the RS-918 (SDR) and related, the firmware "is the radio," and so I am assuming that this might possibly be true with this unit as well. (Look me up in QRZ.COM for more info: ) There is a LOT to learn and digest with the NanoVNA, and I am not there yet. Will the (or ANY) NanoVNA be upgrade-able to some common point or ability? -Or, have I purchased a limited device? I was unable to locate a source that mentioned "hugen." Apparently, this is the best source of this fine unit. What is the URL for the better source, or is it worthwhile for me, as a low-end user? Thank you from Mike, K0JTA |
Re: Batteries
I'm wondering if hugen is able to verify that the replacement battery control chip he is thinking of using will prevent over charging any cells.
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I've translated and attached a copy of the FM9688 Mobile Power Management IC spec sheet. On Tuesday, November 19, 2019, 11:17:19 a.m. GMT-5, Nick <g3vnc@...> wrote:
On Mon, Nov 18, 2019 at 01:58 PM, RFy wrote: 450mAh is... Not suitable for NanoVNAYes.? This issue has been reported before (posts #3096, #4533, #6288 etc.) Supplied nvna battery spec is here... Maximum Charging Current specified as 450mA. IP5303 Charging current specified as 1.2A typ and 1.4A max.? There does not appear to be any way to reduce this without additional circuitry. So worst case the 450mAh battery might be charged at 1.4/0.45 = 3.1C ! Qualifies as ultra fast charging... Charge rate might depend on the source. If the nvna is being charged from a standard downstream USB2 port, such as those fitted to this computer, then the charge current could be limited to 500mA which is ~1.1C. Might explain why my battery was fine until I subjected it to an iPad charger! Looking longways on the nvna I can see that the pcb and rear panel are deflected by the battery swelling.? Easily verified by removing one screw in the rear panel where a gap opens up between the panel and the brass spacer. I have now removed the 450mAh battery and temporarily fitted a 1100mAh ex call phone battery stuck on the rear panel. I will fit a "quality" protected 18650 cell when I assemble the repackaged nvna. |
Re: Some required setting for NanoVNA-saver using female calibrations
Hi Kurt,
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Sorry for taking long to reply to your email. The issue in your earlier tests seem to be with C0=0: the calibration corrections divide by a value that is dependant on C0, and for that reason, C0=0 is not a valid standard - and the custom settings for the "open" is disabled, including delay. -- Rune / 5Q5R On Tue, 19 Nov 2019, 16:02 Kurt Poulsen, <kurt@...> wrote:
Hi All |
Re: BH5HNU NanoVNA-F Aliexpress site no longer there?
Hello David.
I have a very specific use for the NanoVNA-F, basically the VNA-H is too small to be useful with my poor eyesight. I have a VNA-H and it compares very favourably with my HP-8712B. The VNA-F will be used for outside antenna work from 50-432MHz, that's all. These things are really great for such a cheap piece of kit! I also have some proper cal kits to check them with ? 73 Conrad PA5Y ________________________________ From: [email protected] <[email protected]> on behalf of Dr. David Kirkby, Kirkby Microwave Ltd via Groups.Io <drkirkby@...> Sent: 19 November 2019 03:14 To: [email protected] <[email protected]> Subject: Re: [nanovna-users] BH5HNU NanoVNA-F Aliexpress site no longer there? On Mon, 18 Nov 2019 at 17:43, hwalker <herbwalker2476@...> wrote:
Yes, I got the feeling that the -F version was a bit less advanced. I have the standard model, and will eventually upgrade, but I will make a decision about what to upgrade to later. --Dr. David Kirkby, Kirkby Microwave Ltd, drkirkby@... Telephone 01621-680100./ +44 1621 680100 Registered in England & Wales, company number 08914892. Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, Chelmsford, Essex, CM3 6DT, United Kingdom |
Re: Batteries
On Mon, Nov 18, 2019 at 01:58 PM, RFy wrote:
450mAh is... Not suitable for NanoVNAYes. This issue has been reported before (posts #3096, #4533, #6288 etc.) Supplied nvna battery spec is here... Maximum Charging Current specified as 450mA. IP5303 Charging current specified as 1.2A typ and 1.4A max. There does not appear to be any way to reduce this without additional circuitry. So worst case the 450mAh battery might be charged at 1.4/0.45 = 3.1C ! Qualifies as ultra fast charging... Charge rate might depend on the source. If the nvna is being charged from a standard downstream USB2 port, such as those fitted to this computer, then the charge current could be limited to 500mA which is ~1.1C. Might explain why my battery was fine until I subjected it to an iPad charger! Looking longways on the nvna I can see that the pcb and rear panel are deflected by the battery swelling. Easily verified by removing one screw in the rear panel where a gap opens up between the panel and the brass spacer. I have now removed the 450mAh battery and temporarily fitted a 1100mAh ex call phone battery stuck on the rear panel. I will fit a "quality" protected 18650 cell when I assemble the repackaged nvna. |
Re: Is the NooElec nanoVNA any good?
I think it's 3.1 based on the "V3.1" that appears under the battery. This one was purchased directly from nooelec on 10/12/2019.
I don't know what the differences are between versions, nor am I aware that I should care, nor would I know how to determine which version a seller has in stock, nor would I think it fair to the seller to return a product for being the wrong version of a product that has no version control process. |
Re: running nanoVNA-saver under Linux Mint XFCE
Andy
On Tue, Nov 19, 2019 at 02:51 PM, Andy wrote:
Darn, I just tried it, and failed. Everything appears to be installed if I follow the messages. Same old story, NVNA-S complains about pyqt5 or pip. Install the required. Console tells me they are there, nothing to install. Back to square one. I seem to have a lot of issues with Python stuff in the past, and getting disillusioned with anything Python related. From now on, if something is going to work then fine, but life's too short for Python stuff if it don't from now on. I can think of a more productive way of life than chasing Python errors. 73 de Andy |
Some required setting for NanoVNA-saver using female calibrations
Hi All
In the NanoVNA-saver the calibration settings, when doing a female calibration with the supplied NanoVNA calibration kit, where the male SOL parts are fitted to the FF adaptor, need some special settings until Rune gets fixing the following: The Open delay does not work and substituted by a C0 setting as shown in attached image of 1022.3 fF Do not use the open calibration standard just leave the FF adaptor open As Shunt C for the load not yet implemented an inductance og 205pH introduced as temporary fix The data are for the NanoVNA-H delivered after end October. The earlier delivered kits are for Short and Load identical but the delay of FF adaptor is a bit longer and 70.3ps Remember the NanVNA internal C0 calibration must be done prior to using the NanoVNA-saver with the same setup as when calibration with the NanoVNA-saver Kind regards Kurt |
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