Universal Diplexer
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Universal Diplexer calculates the inductance and capacitance values for a Bridge-Tee diplexer based upon a chosen superhet receiver intermediate frequency. It calculates the necessary inductor and capacitance values for the fine diplexer designed by Joe Reisert, W1JR. Input and output impedances are both 50 ohms. Simply enter the design intermediate frequency in MHz and press the Calculate button. More info on this diplexer is given on our web site under Diplexer Topics.
The applications allowable frequency range is very liberal ( 0.1 to 54 MHz ), however, we have only built and tested this diplexer from 2.5 to 28 MHz. Other intermediate frequencies could be tested in simulation or in an actual rig.
The license of this software is Freeware, you can free download and free use this calculator software.