Was at the SOARA meeting talking with a young fellow who needs to take the Tech test because he let his lapse. I suggested that if he knew the following formulas, cold, the test is much easier. Here we go:
Ohm’s Law: E=IR (VOLTS = AMPS * OHMS)
Power Equation: P=EI (WATTS = VOLTS * AMPS)
Wavelength/Frequency: 300 / ___ MHz = ___ Meters
Just plug in what you know and solve (multiply or divide) to get what you need to know.