On Dec 1, 2015, at 6:31 AM, Rick Murphy
Thanks for digging this up. If it’s in Eldad’s book then I know its solid. I know this should be obvious, but I’ve always had difficulty reading these waterfall charts. Can you help with the following?
10^-2 = .01 = 1%
then it follows that:
10^-1 = .1 = 10%
10^0 = 1.0 = 100%.
Why does the * on the 4 dB scale = 15%?
On Dec 1, 2015, at 9:46 AM, Chuck Lukaszewski
Note the log scale on the Y axis.
The * at 4dB corresponds to 10^-0.8.
10^-0.8 = .1585 = 15.8%
The x^y button on windows calculator will produce this for you. Be sure to change the sign on the .8 before hitting equals.
On Dec 1, 2015, at 12:26:10 PM, Rick Murphy
On the Windows7 calculator in Scientific view:
press: -^+ (plus over minus key to change sign)
result: 0.158489319244611134852021013733915 (Because, I thrive on precision :-))
Thanks so much.
You must be logged in to reply to this topic.