开云体育

Earlier today I released NanoVNA-Saver 0.2.0:


Release notes:
New feature: Zooming
This release adds the ability to "zoom" on the frequency-based charts: Use
your mouse's scroll wheel to zoom in and out - or hold the control button
and drag a box on the chart to zoom into.

New chart type: Group Delay
Group delay can now be displayed as a chart, and can also be enabled for
the marker data display for both S11 and S21.

New chart type: Permeability
A new chart, R/ω & X/ω, is available for determining permeability
characteristics of toroids. Thanks to David, F4HTQ, for requesting and
helping out with this.

Logarithmic Y-scale:
The VSWR and Permeability charts now have the option of having the Y-scale
shown as Linear or Logarithmic.

Changes to markers:

Now able to display Group Delay for S11 and S21
Markers can be filled or "hollow"
Markers can be shown centered, or with the point at the tip
Markers can be locked from mouse control by selecting the radio button next
to "Show/Hide data"
Time-delay reflectometry:

Min/max impedance values can be manually set
There's a movable marker to measure distance in the TDR chart
New scaling function for values:
Holger Müller, DG5DBH, contributed new code to show values more correctly,
using SI-prefixes. David Hunt provided further changes to avoid losing
precision when displaying frequencies for sweep settings.

Also included: Several bug fixes!

As ever, I look forward to hearing about any feedback, suggestions and bugs!
Thank you very much to all the kind testers, many of whom were recruited on
these very mailing lists!
--
Rune / 5Q5R

Mine have no "CH0" markings, without shield.
Here is test conditions for NanoVNA and NanoVNA-Q variants.
-------------------------------------------------------------------------------------
clearconfig 1234
reset
pause
offset 5000
threshold 300000000
edelay -0.00000000000001
sweep 10000 1500000000 101
cal reset
trace 0 logmag 0
trace 0 scale 15
trace 0 refpos 7.46875
trace 1 logmag 1
trace 1 scale 15
trace 1 refpos 7.53125
trace 2 delay 0
trace 2 scale 0.000000001
trace 2 refpos 3.96875
trace 3 phase 1
trace 3 scale 90
trace 3 refpos 4.03125
marker 1 20 300008000
marker 2 40 600006000
marker 3 60 900004000
marker 4 80 1200002000
resume
#dac 1922( Two variants were same DAC values / Did not changed )
-------------------------------------------------------------------------------------
* Test with latest( As of Nov.11 ) firmware variants.
* NanoVNA_0.4.0-e6035a5(Left)
* NanoVNA-Q_0.4.3-5-ga81ab10( Right )
* Both CH0/CH1 did not connect anything

What is your HW variants and your RAW traces?

Thank you for all the fast replies.
I will check Alibaba link.
--
Regards,

Erhan, TA1LSX, 73

Pay attention to the seller's note:
"Recently, European customers responded for DHL's import fees.
If you want UPS or other service, please contact me online or leave messgae on feedback or by email.
We will check more for you. sales11<at>zeenko.cn"

Hi Erhan
To be dead sure bye this NanoVNA-H form Alababa.com. It has the low loss female female adaptor included and arrives via DHL within one or two days

Kind regards
Kurt
-----Oprindelig meddelelse-----
Fra: [email protected] <[email protected]> P? vegne af Snowist
Sendt: 12. november 2019 11:26
Til: [email protected]
Emne: [nanovna-users] Would like to buy NanoVNA #nanovna-matlab

First of all apologize if I'm repeating the same question. But I browsed many messages to see howto buy, but lost in topics.
I would like to buy Hugen version but could not able to manage buying from Tabao site. Then I found a product in Aliexpress claiming @Hugen version in description. But I need to make sure it is real Hugen version



If Hugen can see my message here I can pay via Paypal or Payoneer directly and send my postal address or can get it from Aliexpress if he has official sales in there.
--
Regards,

Erhan, TA1LSX, 73

I believe this is the official Hugen one

Lucio, I0LYL

First of all apologize if I'm repeating the same question. But I browsed many messages to see howto buy, but lost in topics.
I would like to buy Hugen version but could not able to manage buying from Tabao site. Then I found a product in Aliexpress claiming @Hugen version in description. But I need to make sure it is real Hugen version



If Hugen can see my message here I can pay via Paypal or Payoneer directly and send my postal address or can get it from Aliexpress if he has official sales in there.
--
Regards,

Erhan, TA1LSX, 73

On 08/11/2019 15:18, Nick wrote:

Thanks Rune. I did not understand the relationship between device

cals and nvna-s cals.

Please allow me to check my understanding.

Let's say I want to measure a ferrite choke from 1 to 50MHz. I set

up the cables and do a device cal over that frequency range using an appropriate cal kit. I save that cal to say C0.

With C0 selected on the device, I repeat the cal on nvna-s using the

same frequency range, same cables, same cal kit and save it to cal_0.cal.

I can then measure my choke over the same frequency range using

nvna-s with as many data points as I like using multiple segments.

Yes

Let's say I then want to measure a UHF filter over the range 100MHz

to 900MHz. Obviously I cannot use C0 and cal_0.cal. So I set up with different cables and a different cal kit. I do a device cal over that frequency range and save it to C1.

No. According to my understanding from Rune. On connection nvna-s reads cal data from Memory 0 only, so unless your calibration originally covered the whole of the frequency range and was saved to C0 then as far as I understand that would not work.

With C1 selected on the device, I repeat the cal on nvna-s using the

same frequency range, same cables, same cal kit and save it to cal_1.cal..

I can then measure my filter over the same frequency range using

nvna-s with as many data points as I like using multiple segments and save the results to s*p files.

What if I then want to measure the filter over a restricted frequency

range, say 400 to 500MHz?

Or a VHF filter with the same the cables and connectors from 100MHz

to 200MHz?

Do I need a new pair of cals in either of these cases? (I would say

not.)

I would say that unless you make a full span course cal and use that from C0 then you would need to save manual cals for the other ranges and store them in C1..C3 and copy them to C0 before disconnecting from the nvna and reconnecting to pick up each new cal from C0.

Maybe Rune can clarify whether or not I have misunderstood his comments in


Barry
G4MKT

On 11/11/19 10:51 AM, David J Taylor via Groups.Io wrote:

Unfortunately, quartz filters have a ripple.

???? Especially if they are not properly terminated.

Do you remember those huge Fresnel lenses that used to be sold so you could 'enlarge' your 14" TV to 30" or more??
?Maybe someone should design a 3d printed housing for the NanoVNA with a Fresnel lens over display ?



On Mon, 11 Nov 2019 at 7:06 PM, hwalker<herbwalker2476@...> wrote: On Mon, Nov 11, 2019 at 03:47 PM, Larry Rothman wrote:

Herb,
The slightly larger display that Herman installed is identical to the 2.8" it
just has bigger pixels.
The resolution and driver IC are the same as in the 2.8" LCD. Hence the direct
swap.?

Larry,
Thanks for the clarification.? Too bad there isn't a similar 4 or 5 in display, although at that size I would think you would want more pixels instead of larger ones for better resolution.

- Herb

On Mon, Nov 11, 2019 at 03:47 PM, Larry Rothman wrote:

Herb,
The slightly larger display that Herman installed is identical to the 2.8" it
just has bigger pixels.
The resolution and driver IC are the same as in the 2.8" LCD. Hence the direct
swap.?

Larry,
Thanks for the clarification. Too bad there isn't a similar 4 or 5 in display, although at that size I would think you would want more pixels instead of larger ones for better resolution.

- Herb

On Mon, Nov 11, 2019 at 08:43 PM, <dhu1342@...> wrote:

Trying one more time to add the attachments.

I made both versions. After communicating with edy555, I changed the nanovna label to nanovna-h label. You can check the nanovna-h label under the battery.

Herb,
The slightly larger display that Herman installed is identical to the 2.8" it just has bigger pixels.
The resolution and driver IC are the same as in the 2.8" LCD. Hence the direct swap.?



On Mon, 11 Nov 2019 at 5:55 PM, hwalker<herbwalker2476@...> wrote: Herman,
The 2.8 in display uses a 320 * 240 * 2 bytes to transfer data and I assume the 3.2 in display requires more.? Therefore I am? I right in also assuming that program features that depend on display size, such as screen capture, do not work correctly with the 3.2 in display?

Not a big issue since you can always use your smartphone camera to capture a screen image, but it is a caveat when stating that the 3.2 works with the same software,

- Herb

Yes, but now you created another problem for the rest of us: you didn't post the link where you purchased the new chips from ?.??
Thanks for playing around with this until you solved it.??
RegardsLarry



On Mon, 11 Nov 2019 at 5:42 PM, Herman De Dauw<on1bes@...> wrote: After almost half a year of using my NanoVNA that did not want to start with the on / off, an old problem has been solved. After replacing the IP5303 earlier, my NanoVNA still did not start (the IP5303 did not see the increased power when switching on). Now I have received a number of IP5305, and have placed one of them in the NanoVNA. After this procedure, the NanoVNA wanted to start up normally for the first time, and all functions of the IP5305 function normally. The device is now fully portable with battery. Problem solved.
on1bes Herman

This UmbrelaSmart app does recognise and display the NanoVNA usb info in DFU mode and it does perform a full erase.
It might be the version number coded into the DFU file. I'm going to try playing with that.?
BTW, there is a java disassem that I've been playing with from the Play store.It's called Show Java.?
Show Java - A Java Decompiler - Apps on Google Play
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Show Java - A Java Decompiler - Apps on Google Play

A decompiler to extract the source code of an APK (android app), jar & dex file. Features ? Select either CFR 0.138, JaDX 0.8.0 or FernFlower (analytical decompiler) to use as the decompiler. ? Runs directly on your android device ? Select apk/jar/
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On Mon, 11 Nov 2019 at 4:55 PM, Oristo<ormpoa@...> wrote: >> I found this GitHub project for DFU installation by Android app

?

I've been trying to get this working - keeps coming back and saying the ID
doesn't match even though it does.

Just as well; source includes comments like:
"this is limited to stm32f405RG and will fail for other future chips."

Since the last commit to this was several years ago

Well, it is newer than Android apps that I worked on, pre-Gradle and pre-IntelliJ IDEA.
As bad as were ant and eclipse, at least Android's wretched documentation was relevant.
Now, build docs badly prescribe doing things that are doomed.

Thanks at least in part to Gradle, it appears no longer possible to publish
a GitHub Android project that can be simply cloned and built

- there is most likely some bugs introduced by newer version of Android.

I expect bugs in this Java.? If I eventually sort build issues,
then it can be tested on nearly the oldest Android device with USB OTG.

Herman,
The 2.8 in display uses a 320 * 240 * 2 bytes to transfer data and I assume the 3.2 in display requires more. Therefore I am I right in also assuming that program features that depend on display size, such as screen capture, do not work correctly with the 3.2 in display?

Not a big issue since you can always use your smartphone camera to capture a screen image, but it is a caveat when stating that the 3.2 works with the same software,

- Herb

After almost half a year of using my NanoVNA that did not want to start with the on / off, an old problem has been solved. After replacing the IP5303 earlier, my NanoVNA still did not start (the IP5303 did not see the increased power when switching on). Now I have received a number of IP5305, and have placed one of them in the NanoVNA. After this procedure, the NanoVNA wanted to start up normally for the first time, and all functions of the IP5305 function normally. The device is now fully portable with battery. Problem solved.
on1bes Herman

I recently replaced my display with a 3.2 version that works with the same software (see the Wiki Files). Replacement with an even larger display is not possible without rewriting the firmware. And currently almost all memory space is used, I see that does not happen immediately. So I'm also waiting for the V2 version, and hope for a larger display.
on1bes Herman

I found this GitHub project for DFU installation by Android app

I've been trying to get this working - keeps coming back and saying the ID
doesn't match even though it does.

Just as well; source includes comments like:
"this is limited to stm32f405RG and will fail for other future chips."

Since the last commit to this was several years ago

Well, it is newer than Android apps that I worked on, pre-Gradle and pre-IntelliJ IDEA.
As bad as were ant and eclipse, at least Android's wretched documentation was relevant.
Now, build docs badly prescribe doing things that are doomed.

Thanks at least in part to Gradle, it appears no longer possible to publish
a GitHub Android project that can be simply cloned and built

- there is most likely some bugs introduced by newer version of Android.

I expect bugs in this Java. If I eventually sort build issues,
then it can be tested on nearly the oldest Android device with USB OTG.

Yes, I checked it when I came home, I use different modes.
But, the attenuators are on the way, so I can test more deep then now is possible.

What a nice software, that's what I mean, with this software I can tune more accurate.

Nice things to study and learn!
Thanks for the link QRP RX!