[Moon-net] Feeding question

[Alberto di Bene]

Heinz Bordé wrote:
> Hi all
> If you have ,lets say ,two antennas, we normally feed them to a splitter and bring the single signal to a preamt.
> What would happen if you place a preamp at each antenna feedpoint and bring then the amplified signals to a splitter.
> Would that bring phasing problems? And if yes: how could I brind down these problems?
> 
That's the way my two 17-el yagis are wired. Each has its own SSB preamp, then the two outputs are combined into a 
quarter-wave section. Theoretically, you should not gain anything, but at least you minimize the S/N degradation due to 
the losses in the sections of cable that go to the combiner, and that caused by the combiner itself.
The two antennas work very well, and subjectively better than when they shared just one preamp after the combiner.

73  Alberto  I2PHD