In article ,
renewontime dot com wrote:

Higher power doesn't
"burn" through anything, including fog,

Bzzzzt, wrong answer Dude, would you like to try for what is behind
Door #3??????

When was the last time, you measured Water Adsorption at 10Ghz?
Obviously, not in the last 50 years, since Xband has come into
Marine Radar use. Water Adsoption is a Significant cause of loss of
Targets, when the humidity of the air between the transmitter
and target is high. 4Kw PPP wil certainly "Burn thru" more
humid air than 2Kw PPP. One must also consider, that heavy rain,
like in squalls, will also tend to drop the siganl level of received
targets in the Xband, due to defraction of the RF by the rain droplets.

These, and other KNOWN, physical elements all play a part in
Maximum Detection Distance of a target in Marine Radar Systems.

Me one who deals with this stuff every day......