开云体育

I concur with what Dave sez, plus the freq range is seamless & you can connect it to a droid and/or windblows PC. I do suggest using a pair of SMA connector savers. I have some that are push-on,

I calculated a minimum loss resistor network, reducing the 2 x 14.8 dB from the HP fixture to 2 x 11.4 dB. Please see at https://www.rudiswiki.de/wiki9/nanoVNA#Crystal_measurement Attached are 2

Why don't you pay half a beer to the OP of this topic?

You will see them. It's just a matter of time.

Thank you Dave.? I have gotten great answers and enough courage to decide.? Just clicked the purchase the NanoVna H4.? I am really looking forward to having it on this next antenna project. Thanks

The MFJ's 1) do not cover the frequency range of the NANO's 2) do not offer the measurement accuracy of the NANO's 3) do not have the frequency accuracy of the NANO's 4) do not have the diversified

Didn't see any for the H4 version. ?___ Sent from my two way wrist watch 73 de W3AB/GEO?

Bummer. Thanks. ?___ Sent from my two way wrist watch 73 de W3AB/GEO?

Unfortunately not for the H4 version. @GEO BADGER, check post 1 of this topic.

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

Thingverse has a few

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

It may assist in a high RF field environment. ?___ Sent from my two way wrist watch 73 de W3AB/GEO?

Hola José, 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:

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

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

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.

Thanks Marco.? Great insight, Dr. Dan S. Gilliam, Sr.Ham Call: K5KHZDMR ID: 1151012k5khz@yahoo434-210-8380434-210-8383 Cell

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

Will a metal case affect measurement accuracy