Yes it can! Gain improvement = 10*Log{50) = +16 dB or about 3 S-units.
Ron wrote:
Dave,
I didn't come here to fence with you guys. I know nothing about the
relative efficiency of antenna systems.
You could be right and the effiency of a tuned dipole "may" be 2%,
which in my mind means if it were replaced with a regular dipole, the
signal strength at a remote location would increase 50 times, but that
certainly cannot be determined that with that brand of math.
Sorry,
Ron
On Mon, 10 May 2004 00:20:55 GMT, Dave Shrader
wrote:
Ron wrote:
On Sun, 09 May 2004 17:26:05 GMT, Dave Shrader
wrote:
SNIP
So you can use the formula I^2*R (which is for finding P) without
knowing the variable "I" to find the resistance (Ra)?
I don't think so. Unless you have a magic wand, Harry Potter :-)
Ron
You certainly can!!
Total power to the antenna SYSTEM = I^2*(Rr + Ra + Rg).
Total power radiated = I^2*(Rr).
When you divide the two terms to get efficiency the I^2 term cancels.
This leaves Rr/(Rr + Ra + Rg). The current terms drops right out!!
DD
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