Final assembly for polar tracking, A word about ku frequency – DH Satellite 1PC or 4PC 3m, 3.7m, & 3.8m 48 Polar/Fixed Mount User Manual
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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 your A1Turbo S2 by the dish. 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 adjust the base can 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.
FINAL ASSEMBLY FOR POLAR TRACKING
A WORD ABOUT KU FREQUENCY
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. 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
US
PH: 1-608-326-8406
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Fig.#1