[Les Cargill[_4_]]

Adrian Tuddenham wrote:
geoff wrote:

On 1/09/2014 10:46 p.m., Adrian Tuddenham wrote:
k.

Correlated and in-phase, they will add to give an increase of 6dB

Yes - that's double the voltage = +6dB, double the power = +3dB.

Just to avoid confusing the uninitiated:

Double the voltage = quadruple the power = +6dB

Always relate dB back to power and then it will make sense with less
chance of an error. I know it's pedantic,

Avoiding burning something up is hardly pedantry.

but it avoids a lot of the
misunderstandings which can occur if the 'power' step is left out of the
reasoning.


--
Les Cargill