Greetings, I use my nano vna on a weekly basis for my hf antenna.
I have had it for about a year or so. Connected to the antenna wiring right where it goes into my radio, I diddle my antenna tuner as necessary and many times achieve 1.04 : 1 or less reflected, as shown on the graph of the nano vna. I have never calibrated it, by the way. If I had it to do over again I would make sure to get one with a case. Mine seems fragile without it. My observations, John, KI5HOC On Mon, Nov 8, 2021 at 5:44 PM Christopher Boone via BVARC <bvarc@bvarc.org> wrote: > I bought a Mini VNA for ~150. Works great. They show it as 100k thru > 1300MHz but the RF out quits at around 600MHz. > I've swept cavities, checked HF and VHF/UHF antennas. Love it. I could use > it to align an AM broadcast directional array!! No need to lug a heavy OMB > around. Does Smith charts! > The multi SWR and wide scan comes in handy. Trying to identify an unknown > antenna at the top of a tower with 500ft of Heliax?? This makes it a breeze > if all is good. Built in TDR shows if feedline is ok as well > > Chris > WB5ITT > > On Mon, Nov 8, 2021, 5:38 PM ralph phillips via BVARC <bvarc@bvarc.org> > wrote: > >> >> >> I have seen some very nice antenna analyzers from Comet and RigExpert. >> They cost anywhere from $200 to $600 depending on the model. >> >> I have used some of them and they do a good job. Apparently they are >> ready to use out of the package…no calibration routine needed. >> >> >> >> Then there are small units called VNAs that cost $50 to $200. They seem >> impressive for the small size and do everything the big ones do. It >> appears some of them require a special calibration kit and need to be >> checked every time they are turned on. >> >> >> >> I want an analyzer for building antennas from HF through UHF. A bonus >> would be a function to check band pass filters (some VNAs seem to include >> this function). >> >> What is your experience and recommendations on the options? >> >> >> >> Ralph >> >> KE5HDF >> >> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for >> Windows >> >> >> ________________________________________________ >> Brazos Valley Amateur Radio Club >> >> BVARC mailing list >> BVARC@bvarc.org >> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org >> Publicly available archives are available here: >> https://www.mail-archive.com/bvarc@bvarc.org/ >> > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing list > BVARC@bvarc.org > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > Publicly available archives are available here: > https://www.mail-archive.com/bvarc@bvarc.org/ >
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