[amsat-bb] Re: keps for earthbound objects
w9ae at charter.net
Mon Aug 13 18:37:37 PDT 2007
Eric Fort wrote:
At certain times I would like an automated az-el rotor run by predict to
"track" a fixed point on earth, say for instance a local mountain top.
could a set of keps be derived such that this just looks like yet
another satellite? How would this be done? Is there an easier way?
Wayne W9AE replies:
SatPC32 (sorry, not a LINUX application) has a function similar to this,
intended for terrestrial use. It's the "standard directions" function
in the "Rotor" menu. It allows you to create a list of names and their
associated azimuths. After the list is created, go into the "Rotor"
menu and click on the name to steer the antennas to that azimuth. It
doesn't support an elevation, but Erich DK1TB might be willing to make a
custom version that stores elevations as well.
Unless your antennas have extremely narrow beamwidth, or unless you are
extremely close to a very large mountain, you should be fine with the
elevation fixed at the horizon. The summit of a big mountain a few
miles away is likely to be only 5 degrees elevation.
Wayne Estes W9AE
Oakland, Oregon, USA, CN83ik
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