Voltage and current in 6:1 balun for sensitivity measurement

[AllTheGearNoIdea]

Hi all need some advice on trying to do a sensitivity measurement in a VHF fm receiver. This is designed to have a 300 ohm balanced feeder and I only have 50 ohm unbalanced outputs on my signal generator. I would normally build a resistive pad to Match impedance. The impedance  and the losses are easily calculated in a resistive pad but this won't produced a balanced feed. If I build a 6:1 balun I'm not sure about the voltage levels on the output side of the balun.  Will it be  6 times greater or smaller. Even if I build something not sure how I could calibrate it back so my sensitive measurement are in anyway accurate.  Perhaps I'm over thinking can anyone give some advices on how to do this. Assume I have reasonable amount of test gear, just no idea how to use it.

Thanks

[T3sl4co1l]

Voltage ratio (turns ratio) is sqrt(impedance ratio).

Tim

[AllTheGearNoIdea]

Ok thanks, I guess  I still need to try and measure the output voltage side, for calibration purposes.  I'm wondering how the material losses and construction will affect the calculated voltages etc.

Regards Chris