Hello Markus and all,
if the reflector scatters isotropic then we have
the decay of fieldstrength on the ways hence and
forth which has the consequence that the received
energy decays by the inverse of the FOURTH power
of the distance. That was the intrinsic challenge
of the EVE experiment!
This also is the reason why the small distance
changes of our Moon cause 2.3 dB difference in
EME.
73!
Klaus, DJ5HG
> Gentlemen,
>
> sorry, but in my humble opinion a figure like "miles per watt" just doesn't
> make any sense.
>
> Fieldstrength goes with the square root of power, but decays at least
> proportional to inverse distance. Anyone could claim 1000 lightyears (1E16 km
> !) per watt, simply by feeding -165 dBm into a pair of 144 MHz dipoles spaced
> by 0.3 m and a QRSS3 receiver.
>
> A more appropiate figure would be km/sqrt(watt).
>
> Best regards,
> Markus (DF6NM)
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