8
AZIMUTH
Use Chart 3 and determine your azimuth setting.
Values in chart must be adjusted for magnetic deviation
for your location for correct compass reading.
Equally tighten the six azimuth locking bolts until snug.
This will allow the reflector to rotate with slight resistance
(Ref. Fig. 3.2).
Rotate reflector and mount, pointing to the compass
reading for your location (Ref. Fig. 3.2).
Slowly sweep the reflector in azimuth until signal is
found. If desired signal is not found, increase or
decrease elevation setting and repeat the azimuth
sweep. Tighten locking bolts.
FINE TUNING
Progressively tighten and torque azimuth locking bolts to
75-85 Ft-lbs (108 N-m). The four top plate locking bolts
are pre-torqued to 8-10 ft-lbs. (12 N-m), maintain this
torque until after azimuth is fined tuned.
Use a signal strength measuring device for final adjust-
ments to obtain maximum antenna performance.
Alternate between elevation and azimuth fine tuning to
reach maximum signal strength, until no improvement
can be detected. Gradually tighten (1/8 turn increments
max.) top plate bolts in sequence 1, 3, 4 and 2 to
75 Ft-lbs., refer to Figure 3.2. Observe for maximum
signal strength as elevation screw’s M22 locking nuts are
tighten.
Polarization tune may be checked by carefully and slowly
rotating feed assembly in clamp. When maximum signal
strength is found, gradually tighten clamp bolts (Fig. 3.0).
If a signal on the opposite polarity is available, this
signal should be minimized.
Tighten and torque all hardware. Refer to Torque Chart
on Page 2.
1
2
3
4
TOP PLATE
LOCKING BOLT
(4 PLCS)
AZIMUTH
ADJUSTING
SCREW
AZIMUTH LOCKING
BOLTS (4 PLCS)
TURN NUTS
CLOCKWISE OR
COUNTERCLOCKWISE
FOR AZIMUTH
FINE TUNING
190
AZIMUTH
171
°
COMPASS
NW
N
NE
E
SE
170
W
S
180
SW
ROTATE ANTENNA ON
GROUND TUBE
EXAMPLE:
AZIMUTH HEADING T0 171˚
(Azimuth ± Magnetic Deviation)
FIGURE - 3.3
FIGURE - 3.2
