Sirius Satellite Radio Premium Sound System User Manual page 23

If the signal reception is low, or intermittent, try another location for the
antenna . Verify that the antenna is pointed south, and that the antenna's view
of the sky is not blocked by a tree, a building, a bridge, or anything else . Adjust
until you are receiving a good signal .
The Indoor/Outdoor Home Antenna's reception can also be tweaked by
opening or closing the antenna clamshell, and turning the antenna . While
observing the signal strength, make small adjustments to the angle of tilt
of the clamshell until the highest possible signal strength is achieved . If you
have not wall-mounted the antenna, turn the antenna slightly to the right or
left and observe if the signal strength increases . For each tweak, allow a few
seconds in each position to determine if the signal strength increases .
SOUTH
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