![smith chart printable smith chart printable](https://ctl.s6img.com/society6/img/EXlxTDN8rhLaBq6oQihLcSWbpEU/w_1500/prints/~artwork/s6-original-art-uploads/society6/uploads/misc/be08747784ad4c5b9fe60ac97f1276de/~~/the-smith-chart703923-prints.jpg)
If I want fancierĬalculations (multiport networks) they're available as libraries, andĪll the tools easily produce plots in a variety of forms. (i.e.sNp files) and for simple hand calculations, python or matlabĭeal with all the complex numbers just fine. These days, I'd rather get data in a computer readable tabular form (lots of loops and covering the entire chart = hard to match all in a you could look at the input or output impedance of anĪmplifier and get a feel for "is it going to be easy or hard to match" It's a handy tool for hand calculation in certain limitedĪpplications, or for representing impedance data as "printable on paper"įorm, i.e. I've been doing EE, mostly with RF, for over 30 years and I rarely use Graphical hand calculations (for which the Smith chart was designed)Īren't as needed today - in the same way that slide rules aren't needed. I recently heard from an Engineering Professor that (in his university)Smith Charts are not taught any longer. Now I am surprised how many hams (I include myself) who are not sure howto interpret a Smith Chart once you acquire a Nano VNA. I then tried "calibrating" the Nano VNA with the SOL standardsĪt the far end of a 100 ft of coax and learned a lot about how moving theĬalibration plane rotates the Smith Chart values.
![smith chart printable smith chart printable](http://www.freeclassnotesonline.com/notes/EET407-HW4-Notes7.jpg)
That was fun for me to try and see with my Nano VNA and VNA
![smith chart printable smith chart printable](https://i.pinimg.com/originals/ab/c1/e7/abc1e75de9ec73a786c4213b3db0275e.png)
Plotting the actual R and X values on my feed line on a Smith Charthowever makes it easy to "see" how far you are from the bull's eye (50 ohm The important point I leanred was that you cannot tell the SWR if youonly know the magnitude of the impedance. I doubt there are many errors in his REFLECTIONS I and II books. Wonder if Walt W2DU (SK) is smiling at that catch. A 50 ohm R and a 50 ohm X yields a Z = 71 ohms.