DH Satellite 1PC or 8PC 4.2m & 4.5m 48 Polar/Fixed Mount - Manual (Page 13)

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 by using the turn buckle. 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. To move mount east or west loosen set screws on the base can. Recommended to make a mark with a
white marker on the pilot and move can only slightly east/west.
PO BOX 239 PRAIRIE DU CHIEN WI 53821 USA
[email protected] 1(608) 326-8406
Page 9
Installing the feed for 12 Gig & Digital 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. #1) The center of
the feedhorn must be exactly at the focal length. (See
antenna and fine tuning of KU on page 8) 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.
A WORD ABOUT KU FREQUENCY:
FIG. #1
SPECIAL NOTE: A focal finder is available for
purchase at DH Satellite to assist in obtaining correct
measurements.