On Tue, 04 Jul 2006 06:28:16 -0000, Dave Platt wrote:
Can you help me roughly CALCULATE how to increase the range of my home
Internet wireless WiFi setup to a shed 300 feet away from my house?

3 dB of additional gain equates to twice the delivered power at a
specific range. Because power falls off in proportion to the square
of the distance, twice the power yields sqrt(2) or about 1.4 times the
range, all else being equal (which it often isn't).

6 dB of additional gain is four times the delivered power at a given
distance, or twice the range for the same amount of power.

So that I may compare the different options available at the store to me
for increasing my range, are these simplified calculations below correct?

a. 3 dBd additional gain = 10^(3/10) ~= 2x the delivered power
b. 2x power = 2^(1/2) effective range ~= 1.4X the range

b. 6 dBd additional gain = 10^(6/10) ~= 4x the delivered power
b. 4x power = 4^(1/2) effective range ~= 2X the range

Can someone let me know if these calculations are correct because that
helps me equate the different antennas and routers to the one measure I
desire, which is effective range in the area of 400 feet.

Beverly