Dan, The classic Aeroantenna SPIKE snow cone.
http://www.ngs.noaa.gov/ANTCAL/LoadImage?name=AERAT1675_120%2BSPKE.t.jpg The old Ashtech snow cone http://www.ngs.noaa.gov/ANTCAL/LoadImage?name=ASH700936A_M%2BNONE.t.jpg Both of the above will keep birds looking for another place to rest. http://www.ngs.noaa.gov/ANTCAL/LoadImage?name=ASH701945C_M%2BSCIS.s.jpg http://www.ngs.noaa.gov/ANTCAL/LoadImage?name=TPSCR.G5%2BTPSH.gif http://www.ngs.noaa.gov/ANTCAL/LoadImage?name=TPSPN.A5%2BSCIT.ave These spherical cones will impact the signals less, but they do give birds a rest/watch-place. See the middle url, which shows the drawing, and where the antenna phase center is put in the center of the (half)-sphere. The swedish COORS network - called SWEPOS - are using at least two versions of snow cones made from clear acrylic. http://swepos.lmv.lm.se/stationer/0opp.htm http://swepos.lmv.lm.se/stationer/0bor.htm But I doubt very much that a usual timing receiver will notice the difference. -- Björn > Björn, > > Can you provide links to some examples? A picture or two would be great! > > > Attila, > > Almost all the snow we get accumulates. However it does settle, even > then by mid February it's not unusual to see 4 or 5 feet on the ground... > > However, that raises a good questions, in terms of cones and shedding > snow. I wonder how a straight slender vertical pipe with capped end > would work. Say 6 feet long. Let the snow build on the top. You might > loose a few degrees of sky view above it, but how detrimental would that > be? > > Lots to think about before winter! :) > > > Dan > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
