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data outside expected valid range
I have loaded Mate Ubuntu 19.10 on my laptop.
The biggest problem is where the OS saves the Python files and it's permissions. I have gotten the nanoVNA-saver to compile and run and I think it is talking thru a USB port to the remote VNA. I say that because because the start and stop scan freq have changed to the values on the host program. But I get this error: Failed reading data 1 20 times. Data outside expected valid ranges, or in an unexpected format. from reading MSG #4930 from There are two steps to remedy this: 1) Make sure your NanoVNA is calibrated before you even started. It needs to be calibrated across the entire range you intend to use it over. Do a 2-port calibration, not just the short-open-load. 2) If that doesn't help, update your firmware to a newer version, such as edy555's 0.2.3, which fixes some of the transmission errors that were present earlier. So after a cal from 50khz to 900mhz as per the guide - I still get errors, see way to the end of this debug clip: NanoVNASaver 0.2.0 Copyright (C) 2019 Rune B. Broberg This program comes with ABSOLUTELY NO WARRANTY This program is licensed under the GNU General Public License version 3 See for further details Settings: /home/nels/.config/NanoVNASaver/NanoVNASaver.ini 2019-11-20 13:48:29,793 - NanoVNASaver.NanoVNASaver - ERROR - Tried to open and failed: [Errno 2] could not open port : [Errno 2] No such file or directory: '' 2019-11-20 13:48:35,557 - NanoVNASaver.NanoVNASaver - ERROR - Tried to open /dev/ttyACM0 and failed: [Errno 16] could not open port /dev/ttyACM0: [Errno 16] Device or resource busy: '/dev/ttyACM0' 2019-11-20 13:49:04,817 - NanoVNASaver.SweepWorker - WARNING - Got a non-float data value: 2147483647.147483647 2147483647.147483647 (2147483647.147483647) So I am slowly making success but it is slow, any help and or comments are appreciated. Thanks to those who have helped me from this list, THANK YOU! Thank you for the software: Rune B. Broberg. I think it may work after more work on my part. This version of Mate-Ubuntu 19.10 is looking for a tablet to run on and I have a laptop. Any desktop with XFCE failed to put the Python files in the correct OS structure and will not work. I think I still have a port problem? I am not sure what the normal debug complaints are on start up. Sincerely, Nels -- n_n |
USBDeview - Uninstall USB Drivers and inactive COM Ports
About USBDeview
The following tool is called "USBDeview" developed by Nir Sofer (2006- 2013) - all right reserved), a tool that will allow you to see active and inactive USB devices (ghost USB devices) installed in your Windows computer by their driver name and perform a number of operations on them like uninstall, disable, disconnect, disable + enable and others. It will allow fresh with a device installation, thus, preventing COM port conflicts and driver update issues. How to uninstall a device driver with USBDeview - Download the archive that the version of Windows that you have, from the download links above; - Extract the archive content on your destop or anywhere on your hard- disk; - Right-click USBDeview.exe file (the one with a green icon) and select Run as administrator; - A list of USB devices that are active and connected to your PC will be displayed with a "green light"; - The other USB devices for wich drivers were installed but are currently disconnected from your PC will show up with "gray light" meaning there are not in use or inactive. These USB devices will not show on to the Windows Device Manager; - Many of this USB devices are left-overs or duplicates that will only cause issues with your PC operation and might lead to conflicts with new driver installation attemps; - To remove such a USB device driver simply right-click on it and select Uninstall Selected Devices. |
Re: File updated in [email protected]
A very nice update. This now covers most of the areas that were the most puzzling to me.
One thing I notice is that it assumes a newer firmware level that has the DFU command, etc. I didn't notice mention of using the jumper pins that first time. Likewise the data entry bar with the keyboard Easter egg is unmentioned. Passing mention is made of the changing menus through. I'm guessing that most new users will be starting with a unit at the old initial firmware level so that they could use such information. |
Re: Some required setting for NanoVNA-saver using female calibrations
Rune,
For what it's worth, HP put "port extension" in the calibrate menus, but put "electrical delay" in the display scaling menu. I don't remember the details, but I think "port extension" actually added a delay twice the ext/c value to account for the round trip in S11. --John Gord |
Re: Batteries
WOW!??
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Go to your local mobile phone shop/kiosk and just buy a thin/low-profile replacement battery and use that - like I did with my first Gecko Nanovna. I used a small nut as a spacer under each screw to move the rear panel enough for the 800mAH phone battery to fit. On Wednesday, November 20, 2019, 2:47:08 p.m. GMT-5, erik@... <erik@...> wrote:
The battery was already swollen when I got the nanoVNA. It is now even more swollen. Only used computer USB2.0 ports to charge, not even USB3.0. Never a separate charger Will contact hugen as I bought from his shop and the battery is glued to the PCB and I do not want to destroy my nanoVNA -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files: /g/nanovna-users/files Erik, PD0EK |
Re: Batteries
Only if you fear fire and explosions.
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Glenn On 11/20/2019 2:14 PM, erik@... wrote:
On Wed, Nov 20, 2019 at 08:11 AM, Larry Rothman wrote:Please DO NOT USE any LiIon battery that is beginning to swell !!!Should I be worried? --
----------------------------------------------------------------------- Glenn Little ARRL Technical Specialist QCWA LM 28417 Amateur Callsign: WB4UIV wb4uiv@... AMSAT LM 2178 QTH: Goose Creek, SC USA (EM92xx) USSVI LM NRA LM SBE ARRL TAPR "It is not the class of license that the Amateur holds but the class of the Amateur that holds the license" |
Re: Batteries
On Mon, 18 Nov 2019 at 13:58, RFy <gpdxdveil@...> wrote:
450mAh is... Not suitable for NanoVNA There are some high specification batteries for sale on eBay, at quite a reasonable cost. Dave. -- 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
The battery was already swollen when I got the nanoVNA. It is now even more swollen. Only used computer USB2.0 ports to charge, not even USB3.0. Never a separate charger
Will contact hugen as I bought from his shop and the battery is glued to the PCB and I do not want to destroy my nanoVNA -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files: /g/nanovna-users/files Erik, PD0EK |
Re: Batteries
For the forum members that are unsure of the safety when charging their Nanos, try to obtain a low-current PolyFuse and place it in series with the positive lead on the battery.
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You can find info on Polyfuses here:? I was looking up specs and found this part series that 'should' probably be OK to use as protection. I attached the datasheet. NOTE - these devices are used in most modern battery-powered electroinc devices so go through your junk box to see if there might be anything similar you can use. On the other hand, stick a 22 to 27 ohm resistor in series with the battery to limit the current. Cheers,?? Larry On Wednesday, November 20, 2019, 1:37:42 p.m. GMT-5, Andy via Groups.Io <punkbiscuit@...> wrote:
OK I started testing the charging current on my NVNA. Typically 650ma on an empty 400ma supplied cell, oh dear !!! I wasn't expecting that to be honest, I really did assume that there would be some controller regulating the current. I consider that the IP5303 datasheet to be a bit misleading in my opinion. Before I did the test, I also measure the current on a supposedly charged cell, and it wasn't actually any different. Guess I'll be modding mine for an 18650 cell shortly. Has anyone got a fire extinguisher that they can lend me ;) 73 de Andy |
Re: Batteries
Erik,
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You really do not want to screw around with a swollen LiIon or generally any Lithium type battery that is beginning to swell. All they are good for is taking them outside in a wide open area, banging a nail through and running up-wind of the smoke and fumes! ;-) But seriously, working in a two-way radio service shop, I come across all shapes and sizes of batteries and we have to bag each Lithium unit that is recycled in order to prevent shorts to other devices. Why take a chance on a fire. Lithium reacts to air AND water. On Wednesday, November 20, 2019, 2:14:13 p.m. GMT-5, <erik@...> wrote:
On Wed, Nov 20, 2019 at 08:11 AM, Larry Rothman wrote: Should I be worried? -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files: /g/nanovna-users/files Erik, PD0EK |
Re: Batteries
On Wed, Nov 20, 2019 at 08:11 AM, Larry Rothman wrote:
Should I be worried? -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files: /g/nanovna-users/files Erik, PD0EK |
Re: errors of "error" models
#78'' : #78' was re-corrected :
- #78' : #78 was corrected : 19 November 2019 - /g/nanovna-users/message/7185 #78: on the measurement of s-parameters using the [LeastVNA] only 18 November 2019 - /g/nanovna-users/message/7162 - :78''# |
Re: Batteries
Andy
OK I started testing the charging current on my NVNA.
Typically 650ma on an empty 400ma supplied cell, oh dear !!! I wasn't expecting that to be honest, I really did assume that there would be some controller regulating the current. I consider that the IP5303 datasheet to be a bit misleading in my opinion. Before I did the test, I also measure the current on a supposedly charged cell, and it wasn't actually any different. Guess I'll be modding mine for an 18650 cell shortly. Has anyone got a fire extinguisher that they can lend me ;) 73 de Andy |
Re: Batteries
Please DO NOT USE any LiIon battery that is beginning to swell !!!? Recycle it.Once a LiIon battery is starting to swell, its internal chemistry is unstable.
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On Wednesday, November 20, 2019, 10:27:54 a.m. GMT-5, KV5R <kv5r@...> wrote:
I figured it out! After earlier posting, I remembered I have a wall charger for those Galaxy S3 batteries; it uses contacts 1 & 3. And then reading the label on one of them, remembered the NFC antenna. Verified with the bench DMM. With the battery oriented contacts up and left, and calling leftmost contact #1: 1. DC + 2. NFC loop antenna (2.4k-ohms to #3, either polarity) 3. DC - , and other end of NFC loop antenna 4. n/c (resistance infinite, either polarity) So I'll take the oldest one (just beginning to swell) and try to solder #30 wires, hopefully without melting the plastic case too much... Gotta order some 2.5mm standoffs first. Thanks Guys, 73, --kv5r |
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