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Yes, you will lose a bit of dynamic range. However, consider the "raw" dynamic range of the NANOs. At 2-meters, you have more than enough dynamic range in the instrument to throw away a bit. Actually,

You'll lose a little bit of dynamic range, but, really, how much do you need.? If your antenna has a |S11| of -20dB or -30dB, then the fact that the dynamic range is now 50dB instead of 60dB isn't

You loose a few dB of dynamic range, but since a 20 dB RL is the same as a 1.1 to 1 SWR,I'm sure you have plenty of dynamic range! hihi? ?And now you know why so many of us like to work in Return

That's interesting. I didn't think of using return loss instead of VSWR. I was thinking my VSWR would be much improved at the end of a lossy cable and I couldn't think of a way to correct for it. But

Hi Albert You can cal at the end of the coax, but you don't have to. Lets say the coax has about 2 dB of loss.2 dB of the signal is lost going up, and 2 dBis lost coming back down.Thus the antenna is

I had the same problem, which appears when making the calibration and SHORT probe does no electric contact is made with the CH0 connector. Solving was by tightening the warm wire in the CH0 connector.

I want to sweep my 2 meter antenna from the end of a 15 to 18 foot coax. This is because I need to get the antenna out in the clear away from nearby objects to get a good indication of the actual

Although as an e-mail subscriber it can be frustrating to see a whole string of messages all but one of which say "Edited message" (or whatever it is). Of course, it's a very useful feature at times,

FYI, when you're looking at your own posting, underneath are 3 links that say Reply Like More If you click on the "More" link, you can choose to edit your post (and correct typing mistakes). I have

Buy, I meant *buy* an original Hugen NanoVNA!

Update. I did return the non Hugen "NanoVNA". Call them fakes, counterfeit, clones or what you will. The clone's branding and packaging is clearly intended to deceive the purchaser. I have now

I think these RF test boards help, trains you on results, if you have set the vnanano up and calibrated correctly, getting the prescribed results gives us ou some confidence in the nano.

Interestingly, inside KEIL, STM32F302CB and STM32F302CC use the same memory description file. So in fact STM32F302CB and STM32F302CC may use the same Die, just marked as different models when

A cheap LCR meter is also a good option for measuring variable capacitors. The value of most types of capacitors does not vary wildly with measurement frequency. The value of inductors does, which is

I did some measurements on a variable capacitor in my junkbox. It was from an old MW receiver. I measured the closed position on a calibrated DE-5000 LCR meter and it was 367 pF. In the open position

I have gotten good measurements on a variable capacitor doing it exactly the same way I measure an inductor. I use only CH0 and measure reflection (S11). I connect the 2 conductors from CH0 to either

If you have successfully measured numerous inductors, you are also set to measure the variable capacitors. They are both a source port (S11) measurement. Connect the same as you did for the inductors.

Hugen. Thanks for your thoughts. Your point about the demands of new firmware is important. I wish it were easier to get hold of your original product here in the UK.

Larry, thanks for your very detailed responses. I will try to upload two phots of the PCB of my unit (apologies for the phone camera quality). People can use them to make informed choices about their

Hello One walk around. Get a known inductor. Put unknown capacitor in parallell See what frequency it resonate C = 1/(L×fxf) Regards El jue., 16 de septiembre de 2021 7:38 a. m., Joe WB9SBD