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G-800SA/G-1000SA User Manual Page 1
The Yaesu
G-800SA
and
G-1000SA
are designed to
rotate large tower-mounted amateur and professional an-
tenna arrays under remote control from the station oper-
ating position. The clamshell rotator design utilizes 98
7/16-inch dual-stacked circumferential ball bearings to
distribute load over the full diameter of the housing. This
design minimizes stress and wear, and practically elimi-
nates the possibility of destructive water entry: there is
no shaft hole in the top of the housing.
Instead of the usual AC motor drive used in older rotator
designs, the
G-800SA and G-1000SA use a DC motor,
obviating the need for a large starting capacitor with its
potential for failure exposed to outside temperature varia-
tions. The factory-lubricated rotator unit is housed in
melamine resin-coated die-cast aluminum, intended to
provide maintenance-free operation under all climatic
conditions. A mast alignment gauge on the rotator hous-
ing simplifies accurate mechanical alignment during in-
stallation.
The handsome desktop controller matches the design of
modern transceivers, providing 360° radial indication of
actual antenna bearing azimuth.
The operator may select the stopper heading (the bear-
ing through which the rotator cannot be turned) most
convenient for his location and operation, allowing full
rotation through north, south or both, if desired. In any
case, 90° overlapping rotation allows rotation through
the selected stopper heading (450° total rotation).
The rotator is intended for mounting inside a support
tower (not supplied), at least 1 meter from the top, with
an optional (Yaesu model
GS-065 or GS-680U ) thrust
bearing above.
The G-800SA and G-1000SA includes one mast clamp
and related hardware, plus plug connectors for both the
rotator and controller. A six conductor cable of the nec-
essary length must be supplied by the owner.
Please read this manual through carefully before install-
ing the rotator, to acquaint yourself with the procedures
that will be required, and to ensure that you have all nec-
essary items for your installation.
G-800SA
G-1000SA
Heavy-Duty Antenna Rotator & Controller