If you have two identical baluns, you can match the phasing this way:
- Connect a signal generator to a tee-connector. Connect each side of
the tee to the input of each balun.
- Connect the outputs of the two baluns in series, leaving you with two
wires - one connected to balun "A" and the other to balun "B".
- Connect the 2 wires to an oscilloscope or RF voltmeter. Measure the
voltage.
- Swap the wires on one of the baluns. Measure the voltage.
One of the voltage measurements will be much higher than the other. The
higher voltage will be when the two baluns are in phase with each other.
73,
Steve, N2IC
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