Re: Protective Case
Unfortunately not for the H4 version. @GEO BADGER, check post 1 of this topic.
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CT2FZI
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#13424
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Re: Pro or Con
Dan, here's my 0.02 worth RE nanoVNA versus antenna analyzers: One is an open source "vector network analyzer" that is continually open to updates and fixes and experimentation. It requires close
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Ed Humphries
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#13423
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Re: Protective Case
Thingverse has a few
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Larry Rothman
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#13422
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Re: Protective Case
I guess I missed this thread. Who/where can the case for the h4 be purchased or the 3d STL files downloaded.? ---? Ciao baby, catch you on the flip side?? 73 de W3AB/GEO ??? http://www.w3ab.org
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GEO BADGER
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#13421
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Re: NanoVNA V2
It may assist in a high RF field environment. ?___ Sent from my two way wrist watch 73 de W3AB/GEO?
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GEO BADGER
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#13420
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Re: Test fixture question
Hola Jos¨¦, The crystal parameters can be calculated as explained in the PHSNA User's Guide Appendix I, by Nick Kennedy WA5BDU. All formulas are there. It can be downloaded from here:
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EB4APL
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#13419
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Re: Protective Case
I am impressed.? I have never touched a 3D printer, or seen one in action.? Do you sell the cases? Please share what printer you use.? I might consider getting one.? I am always monkeying around
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Dan Gilliam <k5khz@...>
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#13418
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Re: Protective Case
Hello, I purchased your case design to encorage you for the future :) I also designed an addon if you want to use your unit just as an antenna/cable analyzer, while still using your cover. Or remove
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CT2FZI
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#13417
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Re: Pro or Con
I agree with Marco on his analysis. I do lots of outdoor work and wanted something with a more substantial case so I purchased a NanoVNA-F with the push button switches instead of the rocker switch.
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Mike N2MS
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#13416
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Re: Pro or Con
Thanks Marco.? Great insight, Dr. Dan S. Gilliam, Sr.Ham Call: K5KHZDMR ID: 1151012k5khz@yahoo434-210-8380434-210-8383 Cell
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Dan Gilliam <k5khz@...>
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#13415
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Re: Pro or Con
Hi Dan. This is just my opinion. I like the nanovna because I can give it a frequency range and see where the antenna is resonant at, instantly. With the MFJ-2XX, i had to tune around to find that
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M Garza <mgarza896@...>
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#13414
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Re: NanoVNA V2
Will a metal case affect measurement accuracy
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aleks07111971@...
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#13413
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Pro or Con
I am preparing to purchase my first antenna analyzer product. I have an old MFJ-209 which has neither meters nor frequency readout. I love to build antennas, especially for my ham club. Can any of you
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Dan Gilliam <k5khz@...>
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#13412
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
Yes, no big changes from old 0.8.4.6 Add in calibration done fixes, not clear old calibration data if no measure it. Also for AIC disable ADC Volume Control Soft-Stepping (no soft volume up down after
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DiSlord
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#13411
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Re: Test fixture question
Now I wonder: How do I extract the crystal equivalent model parameters with this fixture? Does anyone have a link to the measurement method explanation and perhaps associated software? Jose, CO2JA
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Jose Amador
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#13410
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
Thank you Herb!
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CT2FZI
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#13409
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
Hi DisLord, Same file/name as post /g/nanovna-users/message/13239 ? Cheers! <orginal message snip>
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CT2FZI
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#13408
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Re: Test fixture question
The original circuit from the service manual of the HP device.
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Aleksander Shalygin
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#13407
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Re: NanoVNA firmvare, compiled by DiSlord
#firmware
Try understand why in range 250-300MHz and 1300-1500MHz exist not correct CH1 measure Also continue work under get better result on CH1 Now at -110dB on 1-100MHz less noise (see screenshot), also less
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DiSlord
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#13406
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Re: TDR setup for NanoVNA
#tdr
Hello, 3 screen-shots with not too bad results:(must say very good!) -1- No cable -2- One 20cm 50Ohms cable (from NanoVNA-H kit) -3- 2 times as above connected cables with SMA (from kit). Rudi
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Rudolf Schaffer
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#13405
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