Re: Another modified nanoVNA software
Guys, you can test this NanoVNA MOD v2:
It has TDR, TDR VSWR, some new calculations and improved live tracking for the graph. Also it don't requires python.
TDR Z is not included yet, since it is more complicated than I thought before
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Just rec'd my NanoVna about a month ago. Found this group with great info. This is my first comment. Hope it is taking the correct path into the Group's posts.
To protect the nanoVNA, I am mounting my nano onto a plate. Secured to this plate there will be two type N connectors connected to the nano's SMAs thru short SR coax SMA-SMA jumpers. The type N's were removed and saved from some HP instrument years ago. I am fortunate to have an HP 85032 Type N cal kit.
Pete, WB2UAQ, ex-HP, Agilent
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-----Original Message----- From: [email protected] < [email protected]> On Behalf Of John Kolb Sent: Tuesday, October 1, 2019 8:49 PM To: [email protected]Subject: Re: [nanovna-users] Deal on ebay I've ordered a pair of SMA male to SMA female adapters to attach permanently directly to the nanoVNA to protect it's connectors. Hopefully they will arrive before the VNA does. John KK6IL On 10/1/2019 5:03 PM, mike watts via Groups.Io wrote: No No Roy! You need the female to female adapters if you use a coax jumper to move the calibration plane away from the VNA and to protect the connector on the VNA from physical stress. Attaching a DUT directly to the VNA connector puts the VNA connector at some risk. My standard procedure is to attach a coax jumper - rather than the DUT - to the VNA, otherwise you wind up with some rather large rigid object sticking out in the air, just asking for trouble. That is such standard procedure for me that using it any other way didn't occur to me. That is what I recommend, but I realize not everyone will always want to use it that way.
Whatever adapter you attach to the calibration standards must have a female connection on that end since the calibration standard is male. The other end should also be female if you use a coax jumper (almost all of which have male connectors on both ends - including the ones included with the NanoVNA). If you do not intend to use a coax jumper, then the other side of the adapter should be male. I just didn't think to point out this possibility in my notes.
I shall attempt to clarify that.
Thanks,
Mike WY6K
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Re: More comparisons of NanoVNA and Keysight analyzer
Here are two SWR scans of my ZS6BKW antenna, one with the NanoVNA and the other with my $450 AIM-4170D.
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I've ordered a pair of SMA male to SMA female adapters to attach permanently directly to the nanoVNA to protect it's connectors. Hopefully they will arrive before the VNA does.
John KK6IL
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On 10/1/2019 5:03 PM, mike watts via Groups.Io wrote: No No Roy! You need the female to female adapters if you use a coax jumper to move the calibration plane away from the VNA and to protect the connector on the VNA from physical stress. Attaching a DUT directly to the VNA connector puts the VNA connector at some risk. My standard procedure is to attach a coax jumper - rather than the DUT - to the VNA, otherwise you wind up with some rather large rigid object sticking out in the air, just asking for trouble. That is such standard procedure for me that using it any other way didn't occur to me. That is what I recommend, but I realize not everyone will always want to use it that way.
Whatever adapter you attach to the calibration standards must have a female connection on that end since the calibration standard is male. The other end should also be female if you use a coax jumper (almost all of which have male connectors on both ends - including the ones included with the NanoVNA). If you do not intend to use a coax jumper, then the other side of the adapter should be male. I just didn't think to point out this possibility in my notes.
I shall attempt to clarify that.
Thanks,
Mike WY6K
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Mike, thank you very much for your insights. The correct use of a VNA is all new to me and I welcome any and all advice and suggestions! Roy WA0YMH On Tue, Oct 1, 2019, 7:03 PM mike watts via Groups.Io <wy6k= [email protected]> wrote: No No Roy! You need the female to female adapters if you use a coax
jumper to move the calibration plane away from the VNA and to protect the
connector on the VNA from physical stress. Attaching a DUT directly to the
VNA connector puts the VNA connector at some risk. My standard procedure
is to attach a coax jumper - rather than the DUT - to the VNA, otherwise
you wind up with some rather large rigid object sticking out in the air,
just asking for trouble. That is such standard procedure for me that using
it any other way didn't occur to me. That is what I recommend, but I
realize not everyone will always want to use it that way.
Whatever adapter you attach to the calibration standards must have a
female connection on that end since the calibration standard is male. The
other end should also be female if you use a coax jumper (almost all of
which have male connectors on both ends - including the ones included with
the NanoVNA). If you do not intend to use a coax jumper, then the other
side of the adapter should be male. I just didn't think to point out this
possibility in my notes.
I shall attempt to clarify that.
Thanks,
Mike WY6K
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Re: Which Firmware Version?
Is there a NanoVNA Menu Structure Map for the edy555? I see that OFF/SINGLE/BACK doesn't exist on the edy555 version and CONFIG has appeared. Any others?
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No No Roy! You need the female to female adapters if you use a coax jumper to move the calibration plane away from the VNA and to protect the connector on the VNA from physical stress. Attaching a DUT directly to the VNA connector puts the VNA connector at some risk. My standard procedure is to attach a coax jumper - rather than the DUT - to the VNA, otherwise you wind up with some rather large rigid object sticking out in the air, just asking for trouble. That is such standard procedure for me that using it any other way didn't occur to me. That is what I recommend, but I realize not everyone will always want to use it that way.
Whatever adapter you attach to the calibration standards must have a female connection on that end since the calibration standard is male. The other end should also be female if you use a coax jumper (almost all of which have male connectors on both ends - including the ones included with the NanoVNA). If you do not intend to use a coax jumper, then the other side of the adapter should be male. I just didn't think to point out this possibility in my notes.
I shall attempt to clarify that.
Thanks,
Mike WY6K
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Hi bammi,
I really meant female to female because I always use a short piece of coax (which has male connectors on both ends - like the ones included with the unit) on the CH0 port.? This is the way I have always used VNAs.? But your comment makes me realize that not everyone will always want to do it that way.? So I should clarify the point.??
The important point is to install an adapter on each calibration standard and never remove it.? The calibration standards are male, so whatever you use must have a male connector to mate with it - let's call that the "outside junction".? That connection should remain fixed forevermore.? The other end of the adapter (let's call that the "inside junction") can be male or female based on whether or not you are going to be using a length of coax between the VNA and the DUT.? Make that "inside junction" female if you plan to attach the calibration standard directly (without any coax inside the calibration plane).? Make the "inside junction" male if you plan to use a coax jumper with male connectors on the ends (which is the most common jumper configuration) to move the calibration plane away from the VNA.? The DUT will, or course, always be attached at the calibration plane.
I'll try to clarify this in my notes.? Maybe a picture or two...
Thanks,Mike WY6K
"... somewhere in the distance, there's a tower and a light, broadcastin' the resistance, through the rain and through the night..."
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On Tuesday, October 1, 2019, 04:41:39 PM CDT, Jbammi via Groups.Io <jbammi@...> wrote:
Mike thanks for your Tips for new Users doc.
Small comment: I think you mean to recommend a male to female sma adapter and not a female to female sma adapter, since the connection on the NanaVNA is female, you plug the male end of the male to female adapter into the female socket, and then the other end of the adapter presents to right gender - female -- to plug in the cal standards or the device under test etc.
73 de k1jbd
bammi
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Re: Is there an Android app for the NanoVNA - WebUSB
While determining that ChromeBook browser does NOT support webusb,
I discovered Beagle Term, which can replace e.g. PuTTY for sending nanoVNA commands:
As a Chrome browser app, that means it needs installing only once
if you are a person with multiple PC operating system installations
that all use Chrome browser.
Beagle Term also becomes another method of verifying nanoVNA webusb functionality
without involving Web-Client.
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No, I meant female - because I always use a short piece of coax (male on both ends, like the ones provided with the NanoVNA) on the CH0 port.? However, your comment makes me realize that not everyone will always want to do that.? So I should clarify that point.??
Thanks,Mike WY6K
"... somewhere in the distance, there's a tower and a light, broadcastin' the resistance, through the rain and through the night..."
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On Tuesday, October 1, 2019, 02:46:59 PM CDT, Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...> wrote: On Tue, 1 Oct 2019 at 13:44, mike watts via Groups.Io <wy6k= [email protected]> wrote: Certainly,
Please see the attachment.
Mike WY6K I looked at the document quickly. One thing that struck me is the recommendation to add SMA *female-female *adapters so one does damage the connectors on the NanoVNA by rotating them. Do you not mean male-female adapters, rather than female-female? G8WRB. -- 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
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Re: Which Firmware Version?
W5DXP... I've noticed that... You need to "hit" the "back" with less speed....
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Re: Which Firmware Version?
On Wed, Oct 2, 2019 at 12:56 AM, W5DXP wrote:
In particular, when I hit "back" during calibration, the menu disappeared
After firmware upgrade you're needs to perform touch screen calibration. If you don't do that, touch screen may works incorrectly. In order to do touch screen calibration, open CONFIG menu and press TOUCH CAL.You will need to press upper left and bottom right points with a thin match. After that open menu TOUCH TEST and check touch calibration, it should draw line at exact point where you touch the screen. If it works properly you will need to press SAVE to save touch screen calibration.
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Re: Another modified nanoVNA software
Hi, could I please also try your modified software? That's a very nice piece of work you did there.
fpliuzzi(at)aol.com
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Tailgating Re: [nanovna-users] Deal on ebay
This group has a high enough SNR.
Please change Subject when changing topic.
Thank you.
Ted Antanaitis WA7ZZB
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On 10/1/2019 12:46 PM, Dr. David Kirkby from Kirkby Microwave Ltd wrote: On Tue, 1 Oct 2019 at 13:44, mike watts via Groups.Io <wy6k=
[email protected]> wrote:
Certainly,
Please see the attachment.
Mike WY6K I looked at the document quickly. One thing that struck me is the
recommendation to add SMA *female-female *adapters so one does damage the
connectors on the NanoVNA by rotating them. Do you not mean male-female
adapters, rather than female-female?
G8WRB.
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the command set for the NanoVNA-F overlapped the NanoVNA I call BS on that, based on a long career in embedded software development. If NanoVNA-F wants Rune's support, then they should AT LEAST provide him one, FREE.
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Re: Is there an Android app for the NanoVNA - WebUSB
Any more suggestions? [ I do not have but am investigating cheap Android tablets for Web-Client (e.g. refurb Lenovo Tab 4, Android 7.1) ] WebUSB wants Chrome Browser version >= 65 for Android >= 4.1 Your S7 Edge should have Android >= 6, so should support new enough Chrome. Google reportedly disabled webusb in 2018 Chrome for Android has some settings @ chrome://flags Perhaps webusb is disabled there.. Some Android devices default browser was NOT Chrome.
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Re: Which Firmware Version?
For some reason, edy555_bugfix wouldn't run correctly on my device. In particular, when I hit "back" during calibration, the menu disappeared from the screen. Then when I touched the screen that same menu came back leading to an endless do-nothing-loop. I reinstalled 300_ch and everything works normally.
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One can never have too many different adapters ?
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Any one need 10 female to female connectors that I just ordered without looking first! :-)) :-)) Roy WA0YMH On Tue, Oct 1, 2019, 4:41 PM Jbammi via Groups.Io <jbammi@...> wrote: Mike thanks for your Tips for new Users doc.
Small comment: I think you mean to recommend a male to female sma adapter
and not a female to female sma adapter, since the connection on the NanaVNA
is female, you plug the male end of the male to female adapter into the
female socket, and then the other end of the adapter presents to right
gender - female -- to plug in the cal standards or the device under test
etc.
73 de k1jbd
bammi
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WY6K Mike Watts
Oristo
fpliuzzi