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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

Rainer, If you remove power from the bias-tee, the LNA no longer works. But it almost certainly does not short input to output, and if it did it would not do so without adding extra loads to

I believe the m stands for milli (1/1000). Mark *From:* Jim Lux ( jimlux@... ) *Sent:* Tuesday, October 6, 2020 9:44 AM *To:* [email protected] *Subject:* Re: [nanovna-users] Basic

if your LNA is one that has a relay to bypass it when it's off, then yes, turning off the power would be what you need.