Originally Posted by
sailingfun
The max allowable emission from a microwave is 5 milliwatts. The Collins radar puts out 150 watts. You multiple a watt by 1000 to get the number of milliwatts. The F14 radar could however put out over 10 kilowatts for some perspective.
5 milliwatts per square centimeter. Big difference.
Originally Posted by
Bergman
Huh? 1 milliwatt = .001 watts. You divide by 1000.
So a 5 mW microwave puts out .005 watts. In your example, the Collins radar puts out 30,000 times the radiation of a microwave. (150 W / .005 W =30,000)
I have no clue about the accuracy of the claimed power numbers, just reworking the math.
Microwaves produce 600-1200 watts of electromagnetic radiation. Well above what a weather radar produces, and in a very similar frequency band. What sailing (incorrectly) quoted was the amount of permissible radiation leakage *per square centimeter*. But it's sailing, I wouldn't expect him to really understand these types of things.