On Tue, 26 Oct 2004 21:56:08 +0200, Volker Tonn
said in rec.radio.scanner:

Al Klein schrieb:

3db is 50%, or one "S" unit - easy enough to notice. Actually, the
receiver capture ratio is the smallest amount you'll notice, so the
better the receiver, the smaller the change it takes to make a big
difference.

6 dB is the difference of one S-Unit.

Oops. It was late. You're correct, of course.