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Re: Question on remote use of NanoVNA
The reason there has been no work on it, is because the problem was solved. You were provided with a BT and WiFi solution but you persist for some reason. And yes, you can connect another device via
By Dragan Milivojevic · #35832 ·
Re: Question on remote use of NanoVNA
The android web app may have been a workaround - its too bad there's been no work on this in like 4 years, I wonder if it could be remoted to. Andy
By Andrew Harman · #35831 ·
Re: where is the end fed natural resonance
I hate it when I fumble a key and the message gets sent before I'm done. It should say click on FLOWER POTS for the origin story. I think I'd add another coil a quarter wavelength down the feedline to
By Brian Beezley · #35830 ·
Re: where is the end fed natural resonance
Jim, I've been waiting for someone to comment on this clever idea. Before this thread gets locked, I wanted to tell you that you rediscovered the Flower Pot antenna:
By Brian Beezley · #35829 ·
Re: nanoVNA-H (clone?) USB unrecognized
Hi Bob, I experienced the same, did loose com port after upgrading firmware to the latest 1.2.20 version. I dont know what went wrong but I also lost the dfu recognazion. I managed to get it work
By Jouko OH5RM · #35827 ·
Re: where is the end fed natural resonance
Dave, I will if it continues sideways after my post. If it ges back on track, I think antenna people were enjoying it so I'll practice l'aissez faire .... Thanks. 73, Dave
By Dave Daniel · #35826 ·
Re: where is the end fed natural resonance
Dave, let's kill it. I, as well, am growing tired of the end fed wires. DE
By W0LEV · #35825 ·
Re: where is the end fed natural resonance
This discussion is getting a bit too off-topic for this list. Going forward, let's either bring it back on-topic or kill it. Thanks. DaveD
By Dave Daniel · #35824 ·
Re: where is the end fed natural resonance
Having once worked for NASA, I would SERIOUSLY doubt NASA ever....and I do mean ever...... used ANYthing from MFJ. Far too many hams who work for NASA know about the shortcomings of MJF products. I
By W0LEV · #35823 ·
Re: NanoVNA RF Demo Kit connection
We must credit the work of Mr Quackenbush at Amphenol for the firstconnector for the new Coax Cable 90 years ago.?? Yes, back then there was little work above 30 MHz so they filled a need.TDR a
By KENT BRITAIN · #35822 ·
Re: NanoVNA RF Demo Kit connection
The popular SO-239 / PL-259 are miserable connectors above 30 MHz. They are not an impedance-controlled connector and may vary all over the place. SMA connectors are well specified and controlled
By W0LEV · #35821 ·
Re: NanoVNA RF Demo Kit connection
Low Power Microwave work?????? Low Frequency as in the IF Connections? PL259-SO238?? Looks pretty bad at 1 GHz.? Worse higher than that.
By KENT BRITAIN · #35820 ·
Re: where is the end fed natural resonance
Succinctly and well put, Lou!! Dave - W?LEV [email protected]> wrote: -- Dave - W?LEV
By W0LEV · #35819 ·
Re: NanoVNA RF Demo Kit connection
No, SMA connectors are not PL-259 by any stretch. But they are pretty much the standard for low-power microwave work. Dave - W?LEV [email protected]> wrote: -- Dave - W?LEV
By W0LEV · #35818 ·
Re: where is the end fed natural resonance
I believe Gotham stated you can operate their wonderful verticals if you feed it with a certain length of coax. They used a the coax as a radial; I don't remember of they recommended coiling up the
By Mike N2MS · #35817 ·
Re: where is the end fed natural resonance
QUOTE: What about the vertical ¡°no radials needed¡± ads? I have worked with several local hams who have "believed" the "no radials needed" claims. Don't go there. that's marketingeeze. Mounted on
By W0LEV · #35816 ·
Re: where is the end fed natural resonance
I doubt they have the time nor the budget to test every product. They only testing they do is the Product reviews. Mike N2MS
By Mike N2MS · #35815 ·
Re: NanoVNA RF Demo Kit connection
same here. This kit is absolutely scrap.after a couple of test,the mini connectors died The tread of one of these sma connectors is also bad After a few tries, I threw the whole board in the trash
By Schrille · #35814 ·
Re: where is the end fed natural resonance
Thanks the ARRL standards are helpful. I wonder if the ARRL actually enforces the standards. What about the vertical ¡°no radials needed¡± ads? And the vertical antenna that uses four 4 ft ground
By Ray W8LYJ · #35813 ·
Re: Question on remote use of NanoVNA
Explaining the fundamentals takes time, practical example is more suitable for this audience.
By Dragan Milivojevic · #35812 ·