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I am not sure I have another scrap cable I can take apart, This one has been given to me and I do not have same crimp connector to cut / restore it.

Is there any way to tell if the dielectric is PE or foam? 73, Joseph W6JHP

I did ask Mts Goggle and got no (real) answer Here is the label on the cable Eagle Aspen 39B2 RG-6 2.25 GHz Digital Coaxial Cable, 6FT, Black, High Performance 2.25 GHz CMX 18AWG 75°C UL E227171

Sigi: Did you write anything up or have pictures of your Bluetooth add-on. I’d like to give it a try. Thanks Ed McCann AG6CX

The open/short/load just makes sure the reflection measurement is correct. It has nothing to do with the actual measurement of a feedline. The reason you can "see" connectors and the antenna in the

The Keysight Ap Note is a good reference. For what it's worth, in the older NanoVNA-Saver version I have, there are some problems in the implementation, specifically because it does not deal with the

Jim Lux, as always, your replies are clearing few of mine misconceptions, thanks. With all this FFT (frequency to pulse and time ) it is still unclear how CHANGING the "sweep" changes the "estimated

Those interested in how the TDR was implemented in NanoVNA Saver will find the details in this groups.io post by Herb Walker. /g/nanovna-users/message/9651 For more details on how the

Jim Lux, That was a well written explanation of how "TDR" is done in the NanoVNA. Thanks for taking the time to write it up. Roger

i added a bluetooth module to my sark100 and can now measure "wireless" (use smartphone to display sweeps) dg9bfc sigi Am 10.06.2023 um 16:33 schrieb KK4ITX John via groups.io:

Not at all - NanoVNA-Saver also does the calculations - for calibration, for instance, as well as TDR. It's in ./Windows/TDR.py If you know how inverse FFT to generate the time domain works, there's

The calculations are in ./Windows/TDR.py (not ./Charts/TDR.py, that's what actually does the plotting) Little discouraging, but I found the same "source code "..... I also realized that , also little

We all have our favorites, mine is the SARK 100, got it from Amazon for around $50. It has a bright backlit screen, apply 12v and you’re ready to go, in 30 seconds you have your SWR. Absolutely

Hi Fran?ois, As an example, I routinely use a nanoVNA or antenna analyser to adjust my 136 and 475 kHz antennas at my home and remote QTH's, via a switch or PC-selected port which routes the antenna

On Thu, Jun 8, 2023 at 01:53 PM, Jim VE7RF wrote: <Before the VNA was available, I would just measure the C between center conductor + braid. Knowing how many pf per foot the cable was, it's a simple

MFJ also has about 8 different antenna analyzers available, some analog and some digital. Comet has very nice ones, too, for around $500. NanoVNA is by far the cheapest, but comes with no instructions

That's good, but anyway, even if the resonance has been found for each of the two frequencies (zero reactant), the radiation resistance will not be identical and neither will be 50 ?. That's why I

When you adjust a fan dipole trim the high frequency one first. Then the lower one, and lower and so on. Look up G3BDQ's book on Practical Wire Antennas.

Hello Some OMs, in fact, temporarily replace their Tx with a nanoVNA to adjust their tuning box. You have to be careful that the TX does not end up in front of the NanoVNA. In France we call that:

Hopefully, if we ignore you, you will stop your BS as you have done in other groups and just fade away. We are willing to help those who are really wanting and needing it. Not those who spread crap