Originally Posted by Martin Y
The Attenuator go's between the radio and booster. It's used so it doesn't damage the output of the radio which puts out more power than the input to the booster needs to operate. The dx7's output power cant be reduced as in the dx6i which can be turned down.
Yes I understand that. My understanding is also that the RF amp does not put out a fixed 1W of power. It has a gain of around 15dB, so a reduction of input power (because of the greater attenuation of 6 of 4dB) would lead to an overall reduction of output power.
So I was curious to know why Christ might want a reduction in output power (of the amp). Because the output power of the RC Tx can't be changed.