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Correction Between 1400 and 4000 But that one goes to 20 gig hz!!! https://deepace.net/kc901-network-analyzer/ Greetz sigi dg9bfc Am 04.08.2022 06:30 schrieb Siegfried Jackstien

KC901 Different range (and so price) available Between 1000 and 2000 bucks or so Much more professional and accurate as all the Nanos... And still portable use (with a bit bigger display) So i

Hello, I did a surch the project, : DeepSDR Radio DSP Digital Demodulation Shortwave AM FM MW SSB CW HAM Receiver Clyde KC7BJE

On both charts, 25+j0 and 100+j0 need to be swapped. They are wrong as labeled.

Kadir, what does it offer that nanovna-h doesnt?

Hi John Good guess at both my range of interest(indeed below 900MHz) and the education side... I have very limited techniques as im new to it all. Im going to try and find that article you mention, if

I, for one, really appreciated hearing about this new product although it may have been in the wrong forum. I don't know where else Kadir might have announced it that I would have seen it. Perhaps

I apologize for the inconvenience caused, it will not be repeated, thank you.

Oroot, Assuming the frequency range of interest is 900MHz and below, your best investment for better accuracy in RL/VSWR and attenuation is probably educating yourself in best technique. As an

An excellent learning tool by just jumping in is SimSmith: http://www.ae6ty.com/smith_charts.html There is also an excellent tutorial (and a lot more) by W?QE at: https://www.w0qe.com/SimSmith.html

Hey all, first post here. I currently own and love the nanovna-h and h4, I was sure to buy them from the alibaba store zeenko as this is apparantly hugens chosen manufacturer. However, if I wanted to

Time is well spent learning a bit about the Smith Chart. You can plot a complex impedance and then draw a circle that intersects the point and get the SWR. You can also measure the distance and get

As long as it is free and open source, I don't mind the announcements for related projects. If it is a product you have to pay for, I am all for every bit of censorship.

Kadir, Please do not post messages on this forum that contain only marketing information that is not specifically related to the NanoVNA product concerned with this particular group. I have deleted

Yes!!! Learn the Smith Chart!!!! Also, learn and internalize Ohm's Law!!!! Both will serve you well with all things RF. SWR can be measured as current, or voltage standing wave ratios. A good test for

Helpful document: https://www.maximintegrated.com/en/design/technical-documents/tutorials/5/5432.html

Russ, If the load is not perfectly matched to the source, there will be a voltage standing wave ratio (VSWR) because of the mismatch. Learn the Smith chart.

SWR = Zt / Zo applies only when both impedances are resistive. When Zt = 40 + j30 ohms, the load is highly reactive. The coefficient of reflection rho is: rho = (Zt - Zo) / (Zt + Zo) = 0 + j0.3333 ...

Can you explain this in more detail. I thought VSWR was based on voltage.

40+j30 is a Z of 50 ohms. In this case, this is an SWR 1:2 !!! Not 1:1 . Only swr 1:1 is 50 ohms resistive load (and then again, using a 50 ohm cable ;-) ). 73 Arie PA3A Op 3-8-2022 om 02:26 schreef