Standard Communications Horizon GX2335S NOVA+ Owner's Manual page 7

Try to keep the rectangular gasket that is between the sleeve case and
the transceiver attached to the sleeve case. If it is removed during this
procedure, or adheres to the transceiver case instead of to the sleeve
case, it must be repositioned with care. Improper positioning will cause
a defective moisture seal between the transceiver and the sleeve
case. Water can then enter and damage the transceiver.
c. If the rectangular gasket between the sleeve case and the transceiver is
removed or becomes detached from the sleeve case, refer to Figure 2
for correct installation. The key to successful orientation is the triangle
mark on the gasket. It should be on the long side of the sleeve case.
TRIANGLE
MARK
Figure 2. Placement of Moisture-sealing Gasket
3. Install the radio following the procedure in the next section.
GX2335S
SIDE B
(SHORT SIDE)
SIDE A
(LONG SIDE)
Owner's Manual
NOTE
GASKET
SLEEVE CASE
page 5