[MLB-WIRELESS] Wireless amp

Mark Aitken vk3jma at wia.org.au
Sat Mar 5 07:46:58 EST 2005


Winder wrote:

>Someone tell me where my maths is going wrong.... I thought 1 watt into a 23
>dBi antenna would give you about 7 watts.....
>
>Regards,
>g at z.
>
>
>
>  
>
0dm = 1mW
10db=10mW
20db=100mW
30bd=1W
40db=10W
50db=100W

therefore

30db + 23db = 53db

= 200W  (3db = double of power)

7W would be about 38db

Mark



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