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You will only have valid measurements within the frequency range you calibrated. You can decrease the frequency range and the firmware will interpolate between the calibrated points but the accuracy

Just received my H4. If I calibrate for a range of, say, 144-174 MHz, can I change the range to 144-148 without recalibrating? I guess I'm asking under what circumstances is recalibration

When changing sweep ranges, it's always a good idea to recal. Dave - W?LEV gmail.com@groups.io> wrote: -- Dave - W?LEV

I'm new to the NanoVNA H-4.? If I calibrate for SWR in the range of 144-174, and then I change the range to, say, 144-148, do I need to re calibrate? IOW, for the purposes of SWR readings, under

By design, slot 0 is activated on power-up, not any other slot. Yes, if you calibrate, then change trace and display options, then save calibration again, it save the currently active calibration

Yes I think the nanovna firmware version needs to be somewhat recent. This capability was added a year or so ago I think. You can also get the current firmware for the H4 from DiSlord's nanovna-d

Stan, Thank you for your tip about the little camera icon in NanoVNA-app. Interesting. I gave it a try. Clicking on it, the pop up screenshot is there, but it updates the small screen only when I

Stan, Thank you for your tip about the little camera icon in NanoVNA-app. Interesting. I gave it a try. Clicking on it, the pop up screenshot is there, but it updates the small screen only when I

It only works for Save 0. Not for other recalls even if I have changed SWR to active trace and made Calibrate > Save. But if I make Calibrate > Calibrate > Done SWR will remain as the active trace. I

Save calibration again after change trace type and settings

When I have made a calibration that firstly involves a SWR trace and secondly a trace for Smith, then the Smith-trace is the active trace. Is it possible to afterwards when having changed so that the

Thank You Stan! I realized that I was using the original One ot Eleven app and changed to latest Dislord update from his GitHub. The new possibilities are very nice to use for presentations of

Torbjorn, In nanovna-app, click the little 'camera' icon at the top of the main window. It will pop up a screenshot of the nanovna in a new window. That new window has a 'Remote" switch, toggle it

Dave W0LEV, Thank you I have emailed you via your ARRL email address.

Phil and John, The NanoVNA is an excellent tool for measuring the inductance and capacitance of components. The S11 shunt method using CH0 (port 1) works well for most measurements. In order to get

Roger, Can You evolve how that is done. I have never seen that possibility with NanoVNA-App. Regards/Torbjorn

How do you measure a coax with my nanovna

Once you have calibrated you setup at the measurement plane including any fixtures, the following may help you (I've got the VNA in front of me as I write so I'll go through the steps). To measure

Hi Stan, I gratefully will accept your kind offer of help. Thank you and I am not in a hurry. zapel406@...

Hi Dean and everyone who gave an answer firstly thank you. Yes I am using Nano Saver on my laptop, yes I am aware of how to calibrate and the importance of measuring at the plane, yes I have made jigs