"Harold E. Johnson" wrote in
news:4mkAi.59515$Xa3.5320@attbi_s22:

Well of course it is Jeff, but in moonbounce, noise figure is the holy
grail.

Is it?

Knowing G/T allows you to calculate the S/N ratio for a known incoming
power flux density. Better, improvement in G/T ratio yields exactly the
same improvement in S/N.

You cannot do that with NF alone, so it is not a single metric that
characterises receive performance of a station.

Moonbouncers who focus on NF alone are as blinkered as anyone else who does
that.

Owen