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Old May 9th 07, 04:13 PM posted to rec.radio.amateur.antenna
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Default 20 dB gain on 20 meters?!?

Buck wrote:
Well, if i am not mistaken, in order to gain another 3 db, he would
have to setup another similar array. That would be twelve stepirs.
Then for another 3 db, he would have to add yet another twelve
stepirs.

The second three steppirs only gained him 3 db over the first three
and the second steppir only gained him 3 db over the first one.

so, what does that three db mean?

Buck, N4PGW


On Tue, 08 May 2007 17:48:21 GMT, "John, N9JG"
wrote:

You have raised an interesting question - When do you reach the point of
diminishing returns?


Three Db equals a doubling of power or halving of power depending on
which way you are going.

Dave WD9BDZ
 
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