Array Solutions - SAL12/20/30 - Mark II Manual – Rev. 1.5.1 – September, 2018
21
Mast installation
o
Next, raise the mast with the attached wires sections of the loops, gathering
appropriate help if needed to hold the mast in place while the loops are being
anchored to the stakes which you drive into the ground with a hammer
(In the
case of the SAL-30 Mark II secure first the guy ropes and the inner set of
stakes, the four ropes are tied to the two tie-down D rings at the top of the 4
th
section)
. Loop the tensioner bail over the stake and adjust tension on the tether
rope. Tie off any excess rope around stake so the tensioner will not accidentally
slip off in high winds.
o
Then, adjust the mast and the tethers so that the mast is vertical and that the loops
have the same size and shape.
o
The Horizontal part of each loop must be leveled and not sloping away or
towards the flat ground.
o
Measure and adjust the distance from the mast to the tether point so that this
distance is the same for all of the loops. Also, adjust the tension on the tethers on
each loop to minimize sag.
o
Verify again that the mast is vertical. Repeat previous step until all loops are the
same size and shape,
and horizontal sections of loops are horizontal.
o
If the ground where the antenna is not flat and even, and there is the need to
elevate the outer corners, make the slope and length of the lower wire equal for all
four loops. The couplers may need to be positioned closer to the mast, therefore
start at the recommended distance for the horizontal case and try to optimize the
F/B of the antenna moving the couplers towards the mast.
o
The horizontal length, mostly on the largest model, the SAL-30,
is about 25 ft
(7.62 m), not an exact dimension that depends on the wire sag and tension
applied to it. Just pull the wire and adjust the length while keeping it
