[MLB-WIRELESS] bouncing off a survey marker on top of a hill? (fwd)
vak
vak at alphalink.com.au
Fri Oct 29 21:30:37 EST 2004
Hi All,
It is highly unlikely that these could be used as anything but radar
"markers", as they've been built to present a "known" RCS (Radar Cross
Section). The RCS of an object is effectively its radar "signature" -
eg, it returns a specific scattering. You will see these markers
scattered across Melbourne and on top of certain buildings in the city.
This particular marker might be used for navigation - since it is close
to the airport (or since there is a radar in the background, possibly
for calibration).
Vaskos
>-------------------
>
>I'm wondering if it's feasible to passively bounce 802.11 off one of
>these:
>
>http://media.sensationcontent.com/rowan/gb-marker.jpg
>
>This was taken at Gellibrand Hill near the airport. I think it's some sort
>of survey marker; presumably that's the highest point of the hill. There's
>another hill near my new home that I can see along an easement (actually a
>dedicated water tank access road), although I haven't actually checked
>recently to see if the marker itself is visible from my block.
>
>Just a wild idea which popped into my head, I'll have a double storey
>place on the south side of my place so perhaps I could bounce off that
>thing to reach further south. :)
>
>Cheers.
>
>To unsubscribe: send mail to majordomo at wireless.org.au
>with "unsubscribe melbwireless" in the body of the message
>
>.
>
>
>
To unsubscribe: send mail to majordomo at wireless.org.au
with "unsubscribe melbwireless" in the body of the message
More information about the Melbwireless
mailing list