[R-390] HP 8640B usage

[Rasputin Novgorod]

Gentlmen:

Thanks to eBuy and other sources, I have some beautiful and
functional HP test gear, that I used to only dream of having.

Unfortunately, though I have theoretical (book) knowledge of
it's usage, I've got very little practical experiance.

Right now, I have an active HF antenna amplifier/splitter, 
(multicoupler: one antenna to several radios), that died
and I'm trying to fix. The power supply is good.

I'd like to connect my HP 8640B to the antenna input, then 
trace the signal. But I have no idea for the power level to
set the HP 8640B to. Indeed, I'd be very grateful, if someone
could suggest all the HP 8640B settings for this, to reduce
my chance of coming to grief...

Sincerely
/b