DH Satellite 60 Fixed Az-El Mount - Manual (Page 13)

Assembling & Installing the Back Brace----
There are eight holes around the rear of the 60" ring to accept the braces. First install the bent
tabs (See Figures #7 & #8). The bent tabs are a piece of steel bent in the middle, approximately
1
½ ” x 3" long with two holes; you will find these in the bolt bag. Fasten the bent tabs with ½”
bolts to the 60" ring, thread one ½” nut about 2/3” of the way down on the 2/3” rod end of the
brace. Slip the rod end thru the tab and install another 1/ 2 " nut. Only tighten these finger tight.
Go to the edge of the dish and place the two 1/ 4 " x 3 / 4 " bolts thru the dish and into the end of the
brace clip and tighten with 1/4" nuts . Fasten the end of the back brace to the brace clip using
3/8” x 1 ½” bolt and 3/8” locknut. (Refer to Figure #5 on pg. 6) Repeat this on all eight braces
on the 3.7m, 3.8m, 3.9m, 4.2m, 4.5m and 5.0m antenna.
Set the dish in its normal position for tracking the arc and walk 30 feet away and sight the front
surface of the dish. It should be flat. If it is not, adjust any braces that may be holding pressure
and try to make the front surface flat. Try to do very little adjusting and try to release pressure
to make flat. String the antenna in four locations is advised. String from back brace across the
face of the antenna to the diagonally located brace. Adjust so that the strings just touch in the
center.
The following is a list of the different back braces for the different size antennas. Check this
chart to be sure you have the right length braces
. Listed is tube length only and does not include
the bracket or the bolt in this measurement. Refer to Figure #9.
Dish Size Focal Length Tube Length
10 ' (3.0m) 36” f/l None
11' (3.3m) 36” f/l 40” Discontinued
12' (3.7m) 57.6” f/l 45”
12’5” (3.8m) 57.6” f/l 47”
12' 9" (3.9m) 57.6” f/l 50” Discontinued
14' (4.2m) 57.6” f/l 55 ½”
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