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Re: How about 2 major streams of firmware for the NanoVNA: Hobby and Experimental?
Mel Farrer, K6KBE
Right on.....
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Mel, K6KBE On Wed, Oct 23, 2019 at 7:51 AM KV5R <kv5r@...> wrote:
I would still like to see a "big text" screen for use with CW stimulus |
Re: How about 2 major streams of firmware for the NanoVNA: Hobby and Experimental?
KV5R
I would still like to see a "big text" screen for use with CW stimulus mode, for "traditional" antenna analyzer field use. Just Freq, SWR, and R+jX with big digits. Re: /g/nanovna-users/message/4772
--kv5r |
Re: edelay vs ELECTRICAL DELAY and other fun
#internals
Larry,
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in any case, I'd want to check the firmware version and other info in order to determine what for of commands to use for this particular firmware. I previously asked edy555 about a command to determine the "capabilities" of the firmware but he didn't seem hugely keen on the idea. For the PC software developer, it's of course easiest to just have a command you can run, and then get back "scanraw-mode-QRP, scan-enabled, max-points=101, min-freq=50000, ..." and then set up the communications bsed on this. But this is not (yet) available :-) I know Erik puts a specific version string in his firmwares, and once I know from which firmware version he uses a new format, I will try to support that. :-) -- Rune / 5Q5R On Wed, 23 Oct 2019 at 16:30, Larry Rothman <nlroth@...> wrote:
QRP's scanraw command is an extension of Erik's original scan command so |
Re: edelay vs ELECTRICAL DELAY and other fun
#internals
QRP's scanraw command is an extension of Erik's original scan command so you shouldn't have any difficulty adapting.
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The big question is do you want to be backwards compatible to Erik's old scan command or just declare all 'Saver versions going forward from 0.1.4 use the new syntax (the better way) and maybe add a quick check with a popup window to get the user to acknowledge the change. On Wednesday, October 23, 2019, 9:56:06 a.m. GMT-4, Rune Broberg <mihtjel@...> wrote:
Thank you, Erik - I might make use of the scanraw functions in a future version, we will have to see :-) -- Rune / 5Q5R On Wed, 23 Oct 2019 at 15:51, <erik@...> wrote: Yes, in my next update I will have QRP's scanraw so all firmwares have the |
Re: NanoVNA-Saver 0.1.4
Hi Oristo,
Thank you very much for your assistance. It seems, I needed perhaps more practice and patience, too, before I posted it: Meanwhile it workes fine - after a number of recalibration attempts on the Hugen. It took several complete new attempts to calibrate and then - all at a sudden it worked ok. It probably was some contact problem, but I am not sure. Another possibility: When it finally worked ok, I had also used the same center and span in both CAL attempts, Hugen and saver. Here now find the good result pics, this time taken with the stand. Thanks again Oristo and group. It is so good to know you can get assistance in a group like this. 73, Hans DJ7BA -----Urspr¨¹ngliche Nachricht----- Von: [email protected] <[email protected]> Im Auftrag von Oristo Gesendet: Mittwoch, 23. Oktober 2019 12:26 An: [email protected] Betreff: Re: [nanovna-users] NanoVNA-Saver 0.1.4 Who in the group has had a similar experience? Who perhaps knows why? What needs perhaps to be done differently? In nanoVNA DISPLAY menu: * select the TRACE being used for Smith, e.g. turn off/on or turn off all others * select SCALE and set SCALE/DIV 1 x1 With NanoVNA-H_AA_20191018.dfu, SCALE - REFERENCE POSITION settings do not affect Smith format plot centering, but perhaps it may on some other firmwares Because of (IMO) poor menu arrangements, it is too easy to accidentally change trace settings for a wrong trace. -- Diese E-Mail wurde von Avast Antivirus-Software auf Viren gepr¨¹ft. |
Re: edelay vs ELECTRICAL DELAY and other fun
#internals
Thanks - I will update the console command document accordingly.
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On Wednesday, October 23, 2019, 9:51:23 a.m. GMT-4, erik@... <erik@...> wrote:
Yes, in my next update I will have QRP's scanraw so all firmwares have the same scan command and some have identical scanraw Will make Rune's life more easy...... |
Re: edelay vs ELECTRICAL DELAY and other fun
#internals
Thank you, Erik - I might make use of the scanraw functions in a future
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version, we will have to see :-) -- Rune / 5Q5R On Wed, 23 Oct 2019 at 15:51, <erik@...> wrote:
Yes, in my next update I will have QRP's scanraw so all firmwares have the |
Re: edelay vs ELECTRICAL DELAY and other fun
#internals
Yes, in my next update I will have QRP's scanraw so all firmwares have the same scan command and some have identical scanraw
Will make Rune's life more easy...... |
Re: edelay vs ELECTRICAL DELAY and other fun
#internals
Hi Erik,
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The scanraw command was created by QRP-RX and I have it documented in the console command doc.Since your scan is different from edy555's version, should I change scan reference to what the edy555 scan performs and just leave QRP's scanraw command in place instead of yours ? On Wednesday, October 23, 2019, 9:27:16 a.m. GMT-4, erik@... <erik@...> wrote:
If you want to use this command sequence for the edy555 and hugen firmwares: pause scan startfreq endfreq count frequencies data resume you can insert the "cal" and "edelay" command if needed and these apply as on screen For maximum multi measurements speed you should not "resume" but keep the nanoVNA paused There is (because of a bad decision by me) possibly confusion on what the "scan" command does. Edy555 original implementation was scan being equal to sweep and wait till the data was available. I changed that to have scan doing an on demand scan with unlimited amount of points and NO calibration/edelay being apply As this lead? to two different "scan" command Rune had to sort out the mess. I intend to change my "scan" command to "scanraw" that will be the same as what already has been implemented by another firmware developer (sorry, forgot your name....) scanraw will pause the "on screen" measurements as these interfere with realizing maximum speed. So "scan" will always be in all firmwares an on demand measurement of maximum 101 points with everything (e.g. calibration and edelay)? the same as on the screen |
Re: Possible Issue with ttrftech firmware (0.2.3-11) above 300 mhz
On 23.10.2019. 12:21, hwalker wrote:
Pedja,In meantime I tried NanoVNA-H_AA_20191018.dfu which reports as version 0.2.3-2 and it seems to work ok to. This is good as this is somewhat modern firmware version. I hope this issue with most recent firmware versions would be resolved. -- 73, YT9TP, Pedja |
Re: edelay vs ELECTRICAL DELAY and other fun
#internals
If you want to use this command sequence for the edy555 and hugen firmwares:
pause scan startfreq endfreq count frequencies data resume you can insert the "cal" and "edelay" command if needed and these apply as on screen For maximum multi measurements speed you should not "resume" but keep the nanoVNA paused There is (because of a bad decision by me) possibly confusion on what the "scan" command does. Edy555 original implementation was scan being equal to sweep and wait till the data was available. I changed that to have scan doing an on demand scan with unlimited amount of points and NO calibration/edelay being apply As this lead to two different "scan" command Rune had to sort out the mess. I intend to change my "scan" command to "scanraw" that will be the same as what already has been implemented by another firmware developer (sorry, forgot your name....) scanraw will pause the "on screen" measurements as these interfere with realizing maximum speed. So "scan" will always be in all firmwares an on demand measurement of maximum 101 points with everything (e.g. calibration and edelay) the same as on the screen |
Re: edelay vs ELECTRICAL DELAY and other fun
#internals
Erik might be able to shed some light on thisOK, I found /g/nanovna-users/message/1880 .. when some firmware had a `start` shell command. This shell sequence works with recent Hugen 'AA' firmware: pause scan startfreq endfreq count frequencies data resume .. but I still need to sort calibration (or not) interactions |
Re: edelay vs ELECTRICAL DELAY and other fun
#internals
Erik has mentioned that the firmware (his?) disables display refresh while taking measurements.
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/g/nanovna-users/message/5122? I don't know if that applies to all flavours of current (in the past month) FW out there. Erik might be able to shed some light on this. On Wednesday, October 23, 2019, 7:57:58 a.m. GMT-4, Oristo <ormpoa@...> wrote:
Among things which may confusingly scrog nanoVNA traces.. Using NanoVNA-H_AA_20191018.dfu, Setting by menu ELECTRICAL DELAY 50p .. then shell `edelay` reports 50.000000000 Setting by menu ELECTRICAL DELAY 50n .. then shell `edelay` reports 50000.000000000 Setting by menu ELECTRICAL DELAY 50000p .. then shell `edelay` reports 50000.000000000 So far as I know, there is no way to find current ELECTRICAL DELAY value from touch screen. So far as I know, setting edelay to other than the value used for calibration is generally doomed..?? It certainly yields weird Smith charts. menu? STIMULUS - PAUSE SWEEP stops data capture, then e.g. selecting another FORMAT changes display, but changing SCALE? or RECALL settings while PAUSE SWEEP has no effect on display I thought that there was a way to disable display refresh for improving speed of e.g. data capture and return by USB? If menu STIMULUS - PAUSE SWEEP or shell `pause` is set, then e.g. shell `data 0` gets no different data is obtained by repeating. If shell `scan` is set only once, then `data 0` returns identical values each time. shell `sweep` without arguments still returns its previous settings, which are no longer in effect. shell `recall n` will recover from `sweep` setting.. I don't want to think about what happens if shell `save n` after some `scan` setting... shell `offset` with no argument does not return current value shell `trace 2` can be set for AA firmware but (so far as I know) has no effect I would like to document interactions among touchscreen menu CAL CORRECTION with shell `data` `scan` and `sweep` but have not sorted a simple conclusive test scheme, given noisy data. |
edelay vs ELECTRICAL DELAY and other fun
#internals
Among things which may confusingly scrog nanoVNA traces..
Using NanoVNA-H_AA_20191018.dfu, Setting by menu ELECTRICAL DELAY 50p .. then shell `edelay` reports 50.000000000 Setting by menu ELECTRICAL DELAY 50n .. then shell `edelay` reports 50000.000000000 Setting by menu ELECTRICAL DELAY 50000p .. then shell `edelay` reports 50000.000000000 So far as I know, there is no way to find current ELECTRICAL DELAY value from touch screen. So far as I know, setting edelay to other than the value used for calibration is generally doomed..? It certainly yields weird Smith charts. menu STIMULUS - PAUSE SWEEP stops data capture, then e.g. selecting another FORMAT changes display, but changing SCALE or RECALL settings while PAUSE SWEEP has no effect on display I thought that there was a way to disable display refresh for improving speed of e.g. data capture and return by USB? If menu STIMULUS - PAUSE SWEEP or shell `pause` is set, then e.g. shell `data 0` gets no different data is obtained by repeating. If shell `scan` is set only once, then `data 0` returns identical values each time. shell `sweep` without arguments still returns its previous settings, which are no longer in effect. shell `recall n` will recover from `sweep` setting.. I don't want to think about what happens if shell `save n` after some `scan` setting... shell `offset` with no argument does not return current value shell `trace 2` can be set for AA firmware but (so far as I know) has no effect I would like to document interactions among touchscreen menu CAL CORRECTION with shell `data` `scan` and `sweep` but have not sorted a simple conclusive test scheme, given noisy data. |
Re: Voltage sensing diode
Nan,
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Firmware from edy555 and hugen can both be used on your device. hugen added a better power supply and DSP reset circuit but the rest of the design is essentially the same. Firmware from edy555 and hugen are also somewhat conservative but the rest of the developers tend to really push the limits of the device so you should probably stick with edy and hugen versions. Note - There is nothing wrong with using the latest and greatest tweaked FW in the device as long as you know it may not work for you. Regards,Larry On Wednesday, October 23, 2019, 2:44:04 a.m. GMT-4, Nan <vk2krn@...> wrote:
I changed D2 to a Schottky Diode. With a fully charged battery, the 3rd battery bar turns on and off. (unstable) Since I have a Hugen's NanoVNA-H, PCB V3.2, I chose to stick on with firmware NanoVNA-H_20191018.dfu. (latest release) Fully charged battery voltage reads 4.1V and after D2 (diode voltage drop) I read 3.91V. That's about 0.2V drop as expected. Also I have not fully understood all hardware differences between Edy555's design and Hugen's design so not sure if Edy555's firmware shall work correctly on my board. @ QRP RX - thanks for your offer to modify firmware, but that will not allow me to change/update firmware's as newer versions release. Is there any simpler way out? BR - Nan |
Re: Fixture PCB for VNA
Thanks - looks really nice.
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For checking SMT active devices, the engineers I used to work with, used? fixtures with toggle-clamps to hold the DUT in place. On Wednesday, October 23, 2019, 12:37:42 a.m. GMT-4, Daniel Marks <profdc9@...> wrote:
I made a fixture PCB for my VNA and I think it would be useful as well for the NanoVNA.? You can find it at: It has the following features: 1.? Calibration standards for open, short, load, thru for SMA and BNC 2.? Four spots to solder on 0805 SMD components to create test loads for SMA, and an area left so that one can label the loads. 3.? ZIF socket for leaded component testing, both SMA and BNC 4.? A spot to place a spring clip into the board so that you can lay components flat against the board and clip them in to test them. I do not think these calibration standards will necessarily work out to 900 MHz but should be useful for convenient testing at HF/VHF. A picture of the test fixture is below. Dan |
Re: [nanovna-f] NanoVNA-Saver 0.1.4
Hi,
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Finally got it here: 73's pf, f5bqp Le 23/10/2019 ¨¤ 11:23, Pierre-Fran?ois (f5bqp_pfm) a ¨¦crit?:
Hello Rune, |
Re: NanoVNA-Saver 0.1.4
Enjoy your well deserved break. I will have a look at the software at the
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weekend . Paul G0VKT On Wed, 23 Oct 2019, 08:56 Rune Broberg, <mihtjel@...> wrote:
Hello all, |
Re: NanoVNA-Saver 0.1.4
Who in the group has had a similar experience?In nanoVNA DISPLAY menu: * select the TRACE being used for Smith, e.g. turn off/on or turn off all others * select SCALE and set SCALE/DIV 1 x1 With NanoVNA-H_AA_20191018.dfu, SCALE - REFERENCE POSITION settings do not affect Smith format plot centering, but perhaps it may on some other firmwares Because of (IMO) poor menu arrangements, it is too easy to accidentally change trace settings for a wrong trace. |
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