Re: Android app cable not working!
Here is my Willkac cable working with a Moto X to the nanoVNA. The X is running Android 7 and asks if the nanoVNA should be allowed to use the USB when it is connected. The NanoVNA app just works
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Gary W9TD
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#11055
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Re: State save/recall
#firmware
Not being able to save the "state" of the nanoVNA is my #1 dislike. My work around is to save it to "place zero" of recallables as then it will survive on/off . Once I get set up for a frequency I
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Nels Nelsen
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#11054
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Re: Anyone had news from Maggie King?
Go on Alibaba and send her a message from your account. I sent her one last night and she replied this morning.
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Tom Denton
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#11053
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Re: Anyone had news from Maggie King?
I placed an order a couple of weeks back for the H4. Just got a shipping notification from alibaba.
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Chris Prosser
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#11052
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Re: HI-Z EVALUATUTION - MEASURED DATA COMPARISON with HP 8753C
Hi to W1RS, I don't know you very well but I hope you understand my post was mostly jest. I figured any one with a "W" call sign would understand. Nice meeting you, I hope to talk more about non-50
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Nels Nelsen
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#11051
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Re: Anyone had news from Maggie King?
I ordered from Maggie in Mid January, and just recieved a note from one of her co-workers yesterday that shipment was arranged and that they would have a tracking number for me soon. I had received a
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Bill Smotrilla <smopho@...>
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#11050
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Re: SWR trace always showing 1:1 as flat line at bottom of screen
You may need to use a smaller freq sweep range and select only the bands you want to sweep individually. The device only has 100 data points of resolution and a full 30Mhz sweep could easily miss the
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Bill Smotrilla <smopho@...>
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#11049
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Re: connectors grounding
If the bonding of the connector grounds changes the measurement, then the ground circuitry external to the VNA is part of what is being measured. This is not good. There is no way to separate the
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Bob Larkin
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#11048
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A Good source for Calibrated Loads in formats other than SMA -
#calibration
Array Solutions sells precision calibration loads in formats other than SMA if you don't want to make your own - https://www.arraysolutions.com/vna-uhf?search=vna
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Bill Smotrilla <smopho@...>
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#11047
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Re: SWR on impedance other than 50 ohms
#measurement
Can you tell me where it is exactly? I can't find it. I tried changing the 50 ohms to 300 ohms in the Saver calibration standards and doing the calibration in the program with 300 ohm load, but
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goscickiw
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#11046
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Re: Anyone had news from Maggie King?
Apple can't get iPhones...? Foxconn is using studentson a skeleton crewed assy. line.? I'm waiting for a nanovna too. JimMc
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J Mcvein
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#11045
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Re: HI-Z EVALUATUTION - MEASURED DATA COMPARISON with HP 8753C
Robert, please take a look at my 9.8k Ohm measurements. With the S21 method, the results are acceptable. /g/nanovna-users/message/11027 For a lower resistor, results are much better
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Ady, YO2NAA
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#11044
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High Z measurements with the NanoVNA
Hi all I have some time wanted to give my detail view on how to avoid the measurement error discussed and demonstrated in this forum. I have used resistor measurements as the example but it is of
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Kurt Poulsen
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#11043
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Re: SWR trace always showing 1:1 as flat line at bottom of screen
I noticed that sometimes after doing a cal without a reset there where sometimes inconsistencies after I verified that each Smith chart indication was in the correct position for each of the SOL cal
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nanovnagroup@...
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#11042
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Re: Anyone had news from Maggie King?
Mine was shipped apparently on 17Jan2020 to Mauritius. I hope to see it soon!
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Jacques Gentil
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#11041
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Re: Simultaneous S11 and S21 measurements ?
Neal, With the nanovna-saver software you can display up to 6 sweeps with combinations of 6ea S21 and 16ea S11 and 1 combo S11/S21 options. Don't know about the unit itself options. -- Chuck, W5USJ
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Chuck Carpenter
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#11040
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Re: Anyone had news from Maggie King?
I got a message from her on 2/13 that they where finally resuming shipments, after the recent holidays and the CVE outbreak.
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nanovnagroup@...
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#11039
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Re: connectors grounding
Just a thought regarding SMA connectors. When I worked on NASA projects, the mandate was 20 connects and disconnects and the connector(s) was removed and discarded. They are excellent connectors from
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W0LEV
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#11038
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Re: SWR trace always showing 1:1 as flat line at bottom of screen
I've had that a few times too. I've never been able to figure out why but recalibration seems to always get it going again. Not much help other than I've had that too. I only need the 3 calibration
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Kevin B
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#11037
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Re: Anyone had news from Maggie King?
https://message.alibaba.com/msgsend/contact.htm?spm=a2700.wholesale.pronpeci14.1.4a393450HJPFIn&action=contact_action&domain=1&id=62455845943&id_f=IDX1dHNHLwwpZgcoe2ZOT8dE0Xz1IdgXyqJKI53BZbaeyOULeGYMG
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Hugen
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#11036
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