I agree, the VWNA is at this time best VNA option up to 1 Ghz for bench use (with computer). The reason I don´t have a VWNA is because I need a VNA to use it in the field as well, with no computer. I
I understand that desire. Many of us own more than one analyzer for exactly that reason. My mechanical toolbox includes various sizes of screwdrivers, wrenches, cutting tools, a measuring tape, a mic
Is you VNA supported by Line sweep tools (Anritsu freebie)? That software has a conversion utility from S11. Have an S113b that works great. Wouldn't trade it unless I got a new one. Norm n3ykf _____
Except that S11 is the WRONG way to measure ferrite chokes. Read the rest of the thread to learn why. 73, Jim K9YC _______________________________________________ ____________________________________
There is a much simpler way to do these calculations that doesn't involve any complex arithmetic. It applies to the two special cases where the impedance is: 1) Pure resistive or 2) Pure reactive. Fo
The general case is simpler than I originally had it, because I'd missed a simplification using a trig identity. The revised version is here: http://www.karinya.net/g3txq/chokes/s21.pdf R = (100.cos(
A couple of additional "power" signs appeared when I cut & pasted that formula from my web site into my email client. It should be: R = (100.cos().10 ^(- |S21| / 20) ) - 100 Thanks to Maximo for poin
Hi everyone, With Dan´s permission, I have modified ZPlots to add some extra S21 calculations. Actually, you can upload any s2p file from any VNA and display most modes: Rx, Xs, Rp, Cp, Logmag dB, ma
Hi all, There is a new version of "ZPlots S21 Xtra" at: http://www.puertobalsillas.com/radio/Balun_Guanella_4_1/Zplots_Xtra.xlsm This improved version allows to show up to eight traces at same time.