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Hi All, Warning controversy ahead :-) I've been following the threads on this group for a while now and there have been some really excellent postings on various topics. The subjects of calibration,

Hi David Well I will go that far if a menu point allowed entering delays for open and short in addition to C0 for open, then Resistance shunt C series L for the load then it would be flexible and cope

Hi Kurt, yes, I just found your message. Could you please clarify how I can check if cal-kit setting will help or not? What I should check after C0 change?

No, this is not special case. If your antenna has VSWR > 1 at X=0 then it means that your VSWR measurement is wrong. You're needs to measure VSWR for proper impedance. If you have S11, you can

Hi Erik Thank you very much for the hint. I will do so when my second NanoVNA arrives. I am not at all familiar with this "magic updating methods and must maintain my first NanoVNA as is not to "fuck

Hi qrp.dds YES !!! I did publish these yesreday Kind regards Kurt -----Oprindelig meddelelse----- Fra: [email protected] <[email protected]> P? vegne af qrp.ddc@... Sendt: 11.

Who knows one of Ph.D might publish $50USD FieldFox-GNU. If that happens, I will ask to contributer like below. -'FieldFox-GNU is great performance/price ratio. But poor than R&S ZNA110. Any schedule

Comparing the NanoVNA to the FieldFox is a bit pointless considering it is 1000th the price. -- 73 Richard G4TGJ

I think I should keep clear of FieldFoxs. I have had two that failed * An Agilent reconditioned N9923A VNA that developed a fault requiring a replacement main board * A used N9912A combination

@Kurt Can you check this firmware

Hello, This email message is a notification to let you know that the following files have been updated in the Files area of the [email protected] group. * /Firmware/NanoVNA firmware build by

I think you should keep to use your FieldFox and ... Try one of this group's EXPERT solutions. below I found someone asking 'feature request' without encouraging/cheering, Just giving

There has been an exhaustive calibration document in Files since early August. Its update, among other calibration content, is linked in the Wiki Application-Notes page, which is linked on the main

I think the choice of words would be perfect match, not poor match. In any case, the use of the antenna Q equation is a special case and restricted apparently for VSWR = 1 as you stated. Again thanks

Hello. Thanks for the clarification. There is no confusion. The issue is the first post and in the post just provided where BW is stated as fractional bandwidth. It would be clearer if another symbol

Rhode & Schwarz has been putting on some webinars on RF basics. This last week's webinar had some good basic information on VNAs and interpretation of the outputs. Here is the copy of the

--------------------------------------------------------------------------------------------------------- I bought a second NanoVNA which just arrived. It had the 2 trace antenna analyzer firmware

Hi qrp.ddc, Thank you very much for clarifying that your bandwidth criteria for measuring Q, using an SWR threshold of 2.618:1, only applies when the SWR at resonance is 1:1. You might be interested

In my opinion the things are pretty clear, Q-factor is nothing else than the reciprocal of fractional bandwidth: Q = 1 / BW where fractional bandwidth is the bandwidth of a device divided by its

Unfortunately I don't understand what did you mean. If you're talking about this equation from "Microstrip Antennas" book: BW = (VSWR - 1) / (Q * sqrt(VSWR)) it uses fractional bandwidth, which can be