Hi all...
This works for AZ and EL
Want to know where the Sun is if your tracking software doesn't include the Sun? Run the free SPC
http://web.ift.uib.no/~neda/suncalc/spc.html
Track the Sun manually with your antenna controller or through your software. Note the shadow on the ground that the antennae produce. Crossed yagi will show a "X" when the antenna is properly pointed. If the antenna is too far from the ground or you cannot place anything near the back end of the beam to see the shadow use plan B. Caution! Sight the sun along the antenna beam using welding glasses to see that it is pointing at the sun. You can also try the "pin hole camera" trick to project the sun's image and antenna shadow onto another surface as you do when watching Sun spots.
http://solar-center.stanford.edu/observe/
Mechanically adjust AZ/EL at the antenna to point at the Sun while the rotator controller logically tracks the Sun.
Advantage of these methods is that it doesn't matter what time of day you are mechanically tweaking your antenna and you can take your time loosening and tightening bolts on AZ and EL.
73, Alan VE4YZ
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Chiu-Teng Tsai Sent: December 26, 2007 11:08 PM To: amsat-bb@amsat.org Subject: [amsat-bb] How to calibrate the azimuth angle?
Dear all,
I am Chiu-Teng Tsai (BM6ERA) from Taiwan. Now we are building a mobile ground station. One of our problem is how to calibrate the azimuth angle. Use compass only, or any better solution? Thanks for your help!
Best regards,
Chiu-Teng Tsai _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb