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Re: Display issue on new Nano VNA H firmware
rogergill veNice
It would be nice if it had come to the fore but sadly Not here in the Uk. Ps I¡¯m absolutely shot after my visit to the local Hospital with my chronic Condition
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Cheers Roger On 2 Apr 2020, at 19:46, Larry Rothman <nlroth@...> wrote: |
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Re: Display issue on new Nano VNA H firmware
rogergill veNice
I think there is a generic problem that surrounds these
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well mad pieces of Equipment an that is essentially No operating instructions put in the Box like mine was , it would undoubtedly make a huge difference to ones ( 1 ) fault finding wen your checking SWR etc, ( 2 ) It would make you les harassed and one peace of mind Cheers Roger On 2 Apr 2020, at 19:37, Holger <holger@...> wrote: |
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Re: nanoVNA-H compared to a Keysight FieldFox at 1 GHz
I, too, have compared the original NANOVNA, the -F, and the -H4 to the HP
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8753C VNA with the 85047 S-Parameter Test Set. For $50 to $120, HP/Agilent/Keysite/R&S/MFJ/Rig Expert/........ should be embarased. Within the limitations of each, the NANO's compare strikingly well to the 8753C. Dave - W0LEV On Thu, Apr 2, 2020 at 7:58 PM John AE5X <ae5x@...> wrote:
I'm very impressed with the nVNA - good accuracy for just a few $, even at --
*Dave - W?LEV* *Just Let Darwin Work* *Just Think* |
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Re: Display issue on new Nano VNA H firmware
No problem! There are about 6 user guides available - I have been editing the 1st one that was originally put out by cho45 (in Japanese).
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With everything going on in the world, I have not had time to update it to the very latest info but it is good for everything to the end of this past January. On Thursday, April 2, 2020, 3:33:22 p.m. GMT-4, Holger <holger@...> wrote:
Thanks I think I got it. Have to spend more time on it, and no I did not download the file for the instructions, I will have to that. THANKS! On 4/2/2020 2:46 PM, Larry Rothman wrote: ? Turn on your traces and markers. |
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Re: edy555 release 0.7.1-20200321
#firmware
As i see on my osciloscope si5351 generate correct freq on 3.2-10kHz, then i measure attenuator its show correct result on lower freq range
Measure capacitor also show normal result (yes exist noise on freq less then 20kHz but enable bandwidth to 300Hz or less solve this problem) |
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Re: Display issue on new Nano VNA H firmware
Holger
Thanks I think I got it. Have to spend more time on it, and no I did not download the file for the instructions, I will have to that. THANKS!
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On 4/2/2020 2:46 PM, Larry Rothman wrote:
Turn on your traces and markers. |
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Re: edy555 release 0.7.1-20200321
#firmware
DiSlord wrote:
Then you ask about minimum frequency, i test my last firmware and made some improvements to si5351 generator for better work on freq < 50kHz Now minimum possible frequency 3.2kHz (look very good if use bandwidth <= 300 Hz) ============================================ DisSlord, The reason I asked about the minimum frequency is because edy555 said that the minimum frequency should be at least twice the IF frequency. For that reason I thought by you raising the IF frequency to 10 kHz you might also have to raise the minimum frequency to at least 30 kHz. I'm surprised you were actually able to lower it below the IF frequency without negative effect. - Herb |
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Re: Display issue on new Nano VNA H firmware
Turn on your traces and markers.
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Did you download the manual that I edit from the files section of the forum? It talks about everything and how to set it all up. On Thursday, April 2, 2020, 2:37:27 p.m. GMT-4, Holger <holger@...> wrote:
I just got my NanoVNA today and I looked around here for the problem I am having, but found nothing. I do not get any digital display at the top of the screen. I have reset it and calibrated numerous times. I do not also get the markers as indicated in the five different videos I have watched. Is there a setting I am missing? I purchased the unit primarily for checking SWR and resonant frequencies of antennas. I like the graphical display and shows much more than just using a watt meter. Any help appreciated. |
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Display issue on new Nano VNA H firmware
Holger
I just got my NanoVNA today and I looked around here for the problem I am having, but found nothing.
I do not get any digital display at the top of the screen. I have reset it and calibrated numerous times. I do not also get the markers as indicated in the five different videos I have watched. Is there a setting I am missing? I purchased the unit primarily for checking SWR and resonant frequencies of antennas. I like the graphical display and shows much more than just using a watt meter. Any help appreciated. |
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Re: Storing and transporting your NanoVNA
KV5R
Over the years I've outfitted several small hard cases for various things, and found the best way to do it is half-inch foam rubber carpet padding.
First, cut and glue the padding to the entire inside surfaces of the case and lid. (Spray the green plastic side of the padding with Scotch contact cement.) Then cut (but do not glue) several pieces, both horizontal and vertical, as interior dividers. The carpet padding doesn't use up much space, and the loose internal dividers make a flexible system you can use for many things. Also, use small Ziploc bags for cables & leads, to keep them untangled and organized, in the case. 73, --kv5r |
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Re: edy555 release 0.7.1-20200321
#firmware
Then you ask about minimum frequency, i test my last firmware and made some improvements to si5351 generator for better work on freq < 50kHz
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Now minimum possible frequency 3.2kHz (look very good if use bandwidth <= 300 Hz) Also little improve DSP processing for both (for H4 use CortexM4 DSP instruction for faster process data) Add both version to H and H4 firmwares (include last 96kHz AIC3204 dac and 10kHz IF) On Thu, Apr 2, 2020 at 06:35 AM, hwalker wrote:
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Re: Review of S-A-A-2
#nanovna-v2
On Thu, Apr 2, 2020 at 07:35 AM, <erik@...> wrote:
Interesting to hear if dfu.py worked on Windows. I was not able to upgrade with dfu.py. But NanoVNA/QT worked fine. ====================================== Erik, I haven't used the dfu.py script to upgrade yet. I was waiting for Gabriel to confirm it was safer to use. I did take a look at the script. On Windows the lines: import serial, tty, sys tty.setraw(ser.fd) need to be changed to: import serial, sys # tty.setraw(ser.fd) Without those changes on my Windows Python set-up, the tty import always results in 'termios' module error, so it may be Linux specific. For other interested members, the procedure for using the script, after making the above changes, appear to be as follows: Procedure for updating S-A-A-2 firmware using dfu.py script: 1. From CONFIG-DFU menu or using JOG LEFT button, enter DFU mode. 2. From Windows comand-line or PowerShell, change to directory containing both the DFU script and binary file. 3. Enter python dfu.py -s com8 -f binary.bin 4. Wait for update to complete and either cycle power to reset or run python dfu.py -s com8 -r. I tested the reset from DFU mode (dfu.py -s com8 -r) but I'm waiting to hear from Gabriel before trying to update using binary file. com8 is the comport my S-A-A-2 is connected to. It has to be changed if different. If you're not sure of which port the S-A-A-2 is connected to then run python -m serial.tools.list_ports -v or check under Windows device manager. Glad to hear NanoVNA/QT has been a safe upgrade vehicle for you under Windows. - Herb |
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Re: Review of S-A-A-2
#nanovna-v2
Chris,
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There is a "Flip Display" button in the "Display" menu. The flip status is saved with the "Save" button in the "Config" menu. --John On Thu, Apr 2, 2020 at 07:04 AM, Christoph Kopetzky wrote:
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Re: 100 ft Coax to Dipole Antenna - Can the NanoVNA show just the Dipole analysis?
But none of that affects the resonant frequency of the antenna. You can
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measure from the end of 100 ft (or whatever) of coax connected to the antenna and you'll be able to see whether the antenna is short or long by what frequency the resonant dip is at. 73,Carey,WB4HXE On Wed, Apr 1, 2020 at 11:19 AM <roncraig1@...> wrote:
On Tue, Mar 31, 2020 at 01:30 PM, Jeff W6FCC wrote:RG8X (foam dielectric) has Vp of 0.79 and loss at 7.2 MHz of 0.75 dB per --
Carey Fisher careyfisher@... |
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Re: Review of S-A-A-2
#nanovna-v2
On Thu, Apr 2, 2020 at 07:04 AM, Christoph Kopetzky wrote:
What I want to know is whether someone knows whether the display of the V2 could be exchanged with a larger one like the H4 and if we could flip the display 180 degrees. I find it very unpractical to get the ports and more important the push buttons at the bottom side of the V2. I would turn it upside. =========================================== Chris, 1. Gabriel has mentioned in past posts that a 3.2" display could be substituted for the 2.8" display by the user. I'm unsure if the same can be said for a serial 4" display like the H-4 uses. 2. There is a DISPLAY-FLIP DISPLAY menu item for flipping the display 180 deg. It works very well. I haven't checked to see if it is saved when you save to locations 0-4. Good idea to purchase two units. The bare devices are begging to be played with, and if one has an untimely end you have a back-up. - Herb |
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Re: Review of S-A-A-2
#nanovna-v2
Herb,
Interesting to hear if dfu.py worked on Windows. I was not able to upgrade with dfu.py. But NanoVNA/QT worked fine. -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files: /g/nanovna-users/files Erik, PD0EK |
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Re: Review of S-A-A-2
#nanovna-v2
On Thu, Apr 2, 2020 at 06:56 AM, Gabriel Tenma White wrote:
... On linux there is dfu,py that is well tested and guaranteed to work. ======= Gabriel, Thanks, the revision info wasn't available at . I have Python 3.7 installed on my Windows 10 PC so is it safer for me to use dfu.py rather than NanoVNA/QT to upgrade? Where should I submit requests for new firmware features. The NanoVNA screen capture code is currently not implemented and I would love to see it added. I'm not sure if it is possible since connecting the S-A-A-2 to a computer causes the "USB Mode" screen to take over the display. - Herb |
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Re: Where to buy Nanovna-v2
#nanovna-v2
nanovna-v2 is back in stock at Tindie with 69 remaining at this moment:
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Re: Review of S-A-A-2
#nanovna-v2
Thank you Herb,
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I read the whole thread and now I understand the differences. Thank you for your explanation :) And yes I ordered two V2 today. One with and one without SOLT kit. Two because one gets into a case and the second will gets updates first... I am very curious about the new features. What I want to know is whether someone knows whether the display of the V2 could be exchanged with a larger one like the H4 and if we could flip the display 180 degrees. I find it very unpractical to get the ports and more important the push buttons at the bottom side of the V2. I would turn it upside. best regards Chris --- 'Everything should be made as simple as possible, but not simpler.' -- Albert Einstein Am 02.04.2020 um 15:18 schrieb hwalker: On Thu, Apr 2, 2020 at 05:59 AM, Christoph Kopetzky wrote: |
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