References

Try a Twelfth-Wave Transformer, QST June 1997 P43, Darrel Emerson

Physical length of matching sections in feet

Physical length of matching sections in inches

Physical length of matching sections in meters

Electrical length of the matching sections in meters

X=the length of the matching sections in degrees

Velocity Factor of coax

Y = Wavelength in meters

Frequency in Mhz

Impedance of load

Impedance of source

Given you have a 75 ohm dipole connected to some 75 ohm line and you wish to match it

to a length of 50 ohm line or a 50 ohm load, this program calculates the lengths needed to

make a 1/12 wave matching network.

Z2 50 Ohm-----any length 50 ohm----

----matching line 75 ohm----matching line 50 Ohm----

----any length 75 Ohm----Z1 75 Ohm