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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:

The TV splitters to connect two TV's to the same antenna are very cheap and work just fine at that frequency.? ? They are a simple transformer, they have no impedance of their own.? So splitting 75

Hello, I intend to use the same antenna for two RX-radios. I will lose 3 dB, but for the sake of the radios RX-input I intended to present each with roughly 50 ohms. The frequency is about 90 MHz (not

On 5/3/22 8:40 AM, Rich NE1EE wrote: > On 2022-05-03 06:45:-0700, you wrote: >> This kind of gets to a point - there *are* people who know the answers on this list, but in general, they also have

To a certain extent, though, a user manual is tutorial in nature, if you're giving step by step procedures for how to execute some measurement.? Perhaps not to explain the background, but surely we

On Tue, May 3, 2022 at 06:41 PM, Rich NE1EE wrote: > > > > > it's also possible to be knowledgeable for writing the code, but not such > > a great explainer. > > This is a good point. But for me, it's

This gets to the heart of the matter. Good for them. So do I. All I set out to do is write a user m

I'm not. I'm writing a user manual for the nVNA. I think we could all benefit from tutorials of some sort, but we all have different interests. To me, that means that many people would prepare

The VNA has no way to know the relationship between physical length and electrical length. So you have to enter propagation velocity.? In a tutorial, since it has come up, one might have an

On 5/3/22 6:26 AM, Rich NE1EE wrote: > On Wed, Dec 1, 2021 at 01:27 AM, DiSlord wrote: >> CABLE - this cable measure util, need calibrate nanoVNA and connect cable >> (there should be nothing on the