Print Menu immediately starts to print the chart and all markers in your default printer. You can set SWR cursor and Q cursor here. You can choose the chart type from the impedance chart, the admittance chart or the immittance chart. You can put a constant reactance line, a constant resistance circle, a constant conductance circle, a constant susceptance line or a constant SWR circle. You can put or erase a circle that contacts the Active marker. Each circuit around the chart corresponds to moving 1/2 (electrically) along the line. You can see that in the outer circle’s calibration marks, which are in fractions of a wavelength. You can set the length of a transmission line with a physical length (electric permittivity=1), electric length or phase angle. On a Smith Chart, this means the value for Z will be in the same spot every 1/2 along the line. You can set the characteristic impedance of a transmission line in spite of Normalized Impedance setting in the Operating Conditions window. The units of value of L and C are Henry and Farad respectively. The calculation result-impedance destination is added to the marker list and plotted on the chart. It calculates impedance shift from the Active marker by connection of R, C, L or transmission line. You have to enter the first marker to start calculation. You can enter a marker by clicking cursor point on the chart. You can put a marker with 3 types of format, Impedance (R+jX), admittance (G+jB) and reflection coefficient (mag and angle). All markers, circles and cursors are cleared. *The angle symbol goes wrong in English language environment. You can select a display format of the Active Marker from impedance, admittance, reflection coefficient or SWR/ Phase. You can change Active Marker to other markers by clicking a marker entry in the marker list. This program intended to keep intuitive operation which use the chart paper, pen and compass and remove the pain of those operation by automatic calculation. The Active Marker is the target to calculate. The list indicates all markers on the chart. The left button is 'OK' and the right button is 'Cancel'. This asks you whether you add this point to Marker List. If you want to add a cursor point to a marker, click any button of the mouse. This number indicates the impedance of the cursor point.
You must push the enter-key after changing a parameter here.
You enter a number with a prefix (G,M,k,m,u,n,p) and push the enter-key. You click the portion you want to change. You enter an operating condition of calculation here. Smith would let you be familiar with the Smith Chart because it calculates reactance and complex number automatically.
#Compass for a smith chart software#
I made this software in order to make RF engineers free from a compass and paper-form Smith Chart. Smith is a calculator on the Smith Chart running on PC. Under no circumstances, I am liable for any damages whatever arising out of your use of this document, including direct, indirect, incidental, consequential or punitive damages. I assume no liability or responsibility for errors, omissions or ambiguities in this document. I added some comments and pictures concerning Japanese font issues.
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