DH Satellite 60 Horizon to Horizon/Powered Dec - Manual (Page 14)

Preparing the C Band Feed Assembly
If the feedhorn you have selected has an adjustable scaler ring, move it to the proper wave guide setting as per
the manufacturer’s instructions. Below, we have listed the focal lengths and focal length/diameter ratios for our
commercial antennas, so just find your antenna and you will have the information to set the wave guide properly.
Antenna Size Focal Length Focal Distance
10’ (3.0m) 36” f/l .3 f/d
11’ (3.3m) 36” f/l .28 f/d Discontinued
12’ (3.7m) 57.6” f/l .4 f/d
12’ 9” (3.9m) 57.6” f/l .375 f/d Discontinued
14’ (4.2m) 57.6” f/l .34 f/d
14’ 9” (4.5m) 57.6” f/l .33 f/d
16’ (5.0m) 57.6” f/l .3 f/d
Your DH representative should have asked you what type feed you will be using. We need this
information to be assured we are sending the proper collar to attach your feed to our struts. Take the collar
and set it on the back of the scaler ring of the feedhorn. Turn it until all three holes line up between the two
and insert the 1/4" x 3/4” bolts through the scaler ring and then through the collar; fasten with the 1/4" nuts.
Most C‐band and dual feeds have a 3‐bolt pattern on the scaler just for this.
For heavy duty SEAVEY (C24HD) or heavy duty CHAPARRAL (C14FHD) feed assembly please refer to page 10
and page 11.
For the CHAPARRAL style feed assembly, attach the collar to the scaler ring as described above. Now,
insert 2 – 1/4” x 1 1/2” bolts through the collar and through the end strut. Do this on all four struts (refer to
figure 10). Make sure the feed is set to the focal length and pointing at the center of the antenna.
Strut Local On Ring Face of Sectional and 1pc Antenna 16 Block Ring
1/4” x 1 1/2” Bolt
Figure #10
Collar
1/4” Lock Washers & Nuts
1/2" x 3” Bolt
3/4” Feed Strut
1/2” Rubber Washer
Antenna Surface
1/2” Steel Washer
1/2 “ Nut
(For use of Chaparral (Universal) Feed C14F)
Page 9
NOTE: Strut length includes bent end.