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hello I tested with the nanovna several filters 45Mhz type 45R15AZ. Respond is better than Motorola 20J26. The measurement is consistent with several filters and gives substantially the same result.

Thanks Bob! Op vr 6 mei 2022 om 02:11 schreef Bob Ecclestone VK2ZRE < becclest@...>:

I don't think the 2-port thru measurement will be any more accurate for simple cable measurements. The nano is very accurate with a good dynamic range on reflected (s11) measurements. If the loss were

Oh that's an awesome feature I didn't even know about, thank you! Though I'm still going to troubleshoot to try and get the other port to work properly. Is this calculated value as accurate as having

An easier way to check coax loss is available on the H4 with most recent firmware. You connect the coax to only the s11 port, and leave the far end of the coax open. Then from the menu choose measure

don't think it is busted. Your photo shows the port unterminated. Try terminating both ports in 50 Ohms and rerun the scan. The Port2 input is pretty sensitive to internal crosstalk (noise), so I

Very cool tip, thanks for detailing it! It removed the movement, but it's still not a line, still looks like noise with inaccurate values unfortunately. Could the S21 port just be busted?

Hello, Try setting the THRESHOLD setting to 280 and do another complete calibration. Some clock chips are not stable at the default value of 300(MHz). These chips are severely overclocked in the

Hello Victor, I am sure you will get flooded with replies to your question. The answer is simple, early versions of the nVNA had a nominal Port1 output of -13dBm, later versions had redesigned Port

Hello all of you, I am trying to find some authoritative info on the output power of the NanoVNA. In several links I see -13dBm (and sometimes even increasing with frequency:

Hi Torbj?rn, going back to your coax xable splitter: When you have a signal source at A and two loads connected to B and C, the circuit works fine, because each 75? cable will transform its 50?

This is when I calibrated and left the cable in through, used the thin coax that comes with it.

The value for S11 looks "about" right. Yes, S21 is noisy. Run the same test with the coax you used for the through cal, of course, after another complete cal. Dave - W?LEV -- Dave - W?LEV

Here's with a reset calibration, I don't think S21 should be noisy like that, should it?

I tested a quality CATV splitter and found it worked quite well for 50 ohm applications. The Return Loss, S21 and Isolation graphs obtained using a NanoVNA are attached. I used F to BNC adapters (from

Still new to using a VNA. I've calibrated my NanoVNA-H4 and double checked the calibration with the 3 tips once again as per hexandflex' guide, with the isolation and through, since I want to measure

Regarding power splitters/combiners, check out the Gysel (rhymes with Diesel) combiner; its termination resistors are 50Ω and grounded, much easier to deal with than the floating 100Ω resistor of

Thanks Andy and Kent. Using the Wilkinson approach my splitter gives SWR 1.1 at the design frequency, quite broad. The input from Kent gave me the idea to make a splitter using two ferrite-toroidal

Very useful link. Thanks! ~R~ 72/73 de Rich NE1EE The Dusty Key On the banks of the Piscataqua

https://www.microwaves101.com/encyclopedias/wilkinson-power-splitters You're missing the resistor. 73 Andy, G4KNO. wrote: