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It depends on the frequency.? For low frequencies, lead length is unimportant.? As long as the lead is much shorter than about one tenth of a wavelength, it won't matter much. Therein lies one of

Probably a stupid question, but does the length or type of the wire used to connect the SMA to the coax matter? Will it change the measured values?

Hi Christian, Thanks very much for your explanations. I'm trying to understand your graph and how you are calculating the error in dB. So I thought I'd try this simple example: Let's say I have a

Hi Steve. I think the best answer is you be the judge. Get a hold of a component that you know is your so called golden standard. An R, L or C to start and go measure. Does the value behave as you

Gentlemen, I have tried to read this string and accept I have little hope of understanding much of it, albeit I have tagged some of the references in the hope that my understanding might improve with

This is a testmessage only. Please ignore.

On Tue, Oct 6, 2020 at 12:47 PM, Rainer wrote: Hi, Forget everything I said about measuring the antenna with the LNA included. Sorry for not listening to the experts here. This was nonsense what I

Dave, I think it is a little worse than you described. With a 30dB return loss standard, a 20dB return loss DUT might indicate a return loss from about 17.6dB to 23.3dB. The error due to the 30dB RL

Hi Bob, Thanks Rainer

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Hi, As this group discusses the Nano VNA I would like to ask if somebody would recommend me a group for Antenna building. Thanks Rainer

Diving a bit deeper into what I wrote earlier. You can derive from Doug Rytting's presentation (see above) or from the signal flow graph that the uncorrected reflection Γm measured by the VNA for a

About this cloning flap — note that Willie the Bard Shakespeare was not the first to write up the Hamlet saga, just the best. ;B

well, this is why you'd buy your 8510, and then buy an S-parameter test set to go with it. At some point, though, the optimum development/sales model changes. When the widgets are cheap enough,

If this 6ghz VNA also functions as a spectrum analyzer with tracking generator, that makes it worth twice as much to me. Perhaps have a stuffing option to use an external bridge as previously

Hi Ray, I am surprised the sheet does not allow you to play WHAT IF. I put together a sheet after the old hp seminar and that permitted you to enter coupler errors, cal kit errors, tracking errors

Hi, I have here to same set ups. RTL-SDR >> 4.5 meter coax 75 Ohm >> LNA >> Antenna I disconnected the RTL-SDR from the coax an antenna set up and connected the Nano VNA to both set ups and yes I

To measure the antenna and feedline 'system', disconnect the antenna feedline from the receiver and connect the end of the feedline to the VNA. You can not make a credible measurement of the

Lower case indicates "milli" or 1E-3. So, your reading of -j667m means -j667 milliohms or -j0.667 ohms. This is known as scientific notation or, more specifically, engineering notation, engineering

Also MPJA.com out of Florida has the adapters. No connection to the company other than being a satisfied customer. Vince. -- K8ZW http://www.metalworkingfun.com http://www.hamradio.fun