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Power Flux density is a function of distance from the transmitter so:

PFD(r) = 300kW*25/(4*PI*r^2) when r is in meters the value is in kw/m^2

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Q: C Calculate the power flux density in free space when the transmitter gain Gt is 25 if the effective Isotropic radiated power of the transmitter is 300kw and the intrinsic impedance of the transmitter?
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