Re: SWR on impedance other than 50 ohms
#measurement
Note, with clearer screen captures: 50-ohm cal: S11 reads 304.88 ohms real as a folded dipole shoud (on the right of the chart right where it sould be for 300- ohms real) 300-ohm cal: S11 reads 53.5
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W0LEV
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#11014
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Re: Android app cable not working!
--------------------------- Same with me. I used the charging cable that came with my Xiaomi Mi9, with the USB C connector connected to the NanoVNA, and the USB A connector connected to this adapter
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Alberto I2PHD
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#11013
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connectors grounding
Hi all,just a quick question,i notice the sma connectors on my vna are fragile where they join the pcb,i have some beter ones,i thought of fabricating a piece of copper sheet and mounting them on
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Paul M3VUV
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#11012
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Re: Simultaneous S11 and S21 measurements ?
Yes ________________________________ Sent: Monday, February 17, 2020 4:20 PM To: [email protected] <[email protected]> Subject: [nanovna-users] Simultaneous S11 and S21 measurements ? Is
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KC1MBX@...
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#11011
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Simultaneous S11 and S21 measurements ?
Is the nanovna capable of showing Simultaneous S11 and S21 measurements in one Sweep, like the DG8SAQ VNWA 3EC ? I think I recall something about this requiring two detectors? Beginner. Neal
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Neal AB6G
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#11010
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Re: SWR on impedance other than 50 ohms
#measurement
Thanks, so the only thing I should do is to multiply the impedance/resistance/reactance values by 6 and they should be correct? Also looks like the attached picture became very low resolution after
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goscickiw
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#11009
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Re: SWR on impedance other than 50 ohms
#measurement
Having calibrated to a 300-ohm standard, then why not multiply the measured value by 6? I believe there is a place in Saver for a multiplier or arithmetic. Note in your 300-ohm cal. presentation of
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W0LEV
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#11008
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Re: Functions of the rocker switch
Yep, I found this behavior after FW update... rocker switch change ¡°center¡± frequency instead of moving marker.. sometimes works weird on my unit and it drives me crazy...
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Stepan Synek
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#11007
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SWR on impedance other than 50 ohms
#measurement
Is there a way to make the NanoVNA show the SWR as close to 1:1 on 300 ohm antennas when measuring directly without an impedance transformer, while still showing correct impedance? I need to measure
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goscickiw
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#11006
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Re: Android app cable not working!
As I understand this, if a cable can communicate the phone with a PC, it cannot be used with a phone. A "normal" cable is due for connecting the PC, as a host, with a peripheral, being it a disk, a
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EB4APL
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#11005
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Re: Android app cable not working!
Yes the app works fine.
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Ronan Daly
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#11004
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Re: Android app cable not working!
Thank you, I wasn't enabling that flag (didnt see the documentation, moving too fast and assumed the s/w would provide a dialog about any settings, my bad) So the flag is set in the android chrome,
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Kayak
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#11003
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State save/recall
#firmware
I'm running nanoVNA @edy555 version firmware v0.5.4. Is there the ability to save the state of the nanoVNA over power cycles? I have the battery installed, and I can recall 0-4, but not save anything
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g8kuw@...
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#11002
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Re: Android app cable not working!
On Mon, Feb 17, 2020 at 09:23 AM, Ronan Daly wrote: " I use a generic unbranded one that came with a chinese tablet and it works fine with my Galaxy S7."
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hwalker
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#11001
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Re: Android app cable not working!
If your phone has a micro usb port then try an adapter like this one
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Ronan Daly
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#11000
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Re: Android app cable not working!
On Mon, Feb 17, 2020 at 09:07 AM, Kayak wrote: I went to your web app online with my samsung (j7 prime) and still "no compatible devices found"
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hwalker
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#10999
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Re: Android app cable not working!
Thanks Herb I must have missed that. This time, I went to your web app online with my samsung (j7 prime) and still "no compatible devices found".. This is the cable (below): I am not sure what to try
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Kayak
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#10998
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Re: Android app cable question
Kayak, That's one of the ones I got but it didn't work with my phone. -- Chuck, W5USJ
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Chuck Carpenter
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#10997
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Re: Android app cable question
Herb, That may be the problem I'm having. Tried two different cables and NADA... My phone is a micro type so I got USB-C to USB-Micro/M -- Chuck, W5USJ
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Chuck Carpenter
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#10996
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Re: Jog wheel switch causes problems
#parts
Also, see this topic /g/nanovna-users/topic/69846009#9783 . - Herb
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hwalker
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#10995
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