DH Satellite 39 Polar Or Az-EL Series - Manual (Page 6)

FINAL ASSEMBLY OF ANTENNA AND MOUNT
Set the axis (mount boom) the approximate same degrees as your latitude. See chart. The dish is tipped forward
the amount of declination (from chart). The mount must point south. Some things should be set and some
adjusted. The following should be set and then left alone, dish front surface must be flat. Feed should be
centered and have the proper focal length. Declination angle should be set. There are only two adjustments to
polar track - 1 is elevation (latitude) the other is pointing south (very critical and very small movements are
involved).
Have a TV by the dish to set up. You need an inclinometer to set declination and boom angle and also a
compass to find south.
Find a satellite the closest to the south of you. Get a picture, adjust elevation. Try a satellite east or west and if
your arc does not match the polar arc, you must move the apparatus east or west. If you go west and are under
the satellite, do not raise elevation. Move the mount slightly west, also the same for east.
A WORD ABOUT KU FREQUENCY
Installing the feed for 12 Gig is more critical than on
C-Band. This is why DH has a special feed collar and
struts just for the KU application, (see Fig. 7 for
KU3FL and see pg 3 for KU4FL). The center of the
feedhorn must be exactly at the focal length. Also
check to be sure the feedhorn is centered by
measuring from edge of dish. Check to see that feed is
pointed directly at the center of the dish. The f/l can
be adjusted by sliding the feedhorn closer or farther
away from the antenna through the three-piece collar.
Major adjustments can be made by placing the three-
piece collar on either side of the horseshoe collar.
PO BOX 239 PRAIRIE DU CHIEN WI 53821 USA
[email protected] 1(608) 326-8406
KU3FL
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