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Conditions that Affect IR communication between the Remote Control and the Nº390S
IR Performance can be affected by:
• direct sunlight
• interior lighting
• wall, window, ceiling, and floor treatments
• the angle of the Remote Control relative to the Nº390S
If the Nº390S will be subject to direct sunlight, place it no more
than 10 feet from where you’ll normally operate the Remote
Control. Where bright sunlight virtually floods the room, IR
communication may be inconsistent.
In a room lighted primarily with incandescent fixtures, place the
Nº390S no more than 25-30 feet from where you’ll normally operate
the Remote Control. In a room with fluorescent fixtures, this
range will be reduced. Where bright fluorescent lighting virtually
floods the room, IR communication may be inconsistent.
IR, like visible light, reacts differently when it meets different
surfaces. Carpeting and draperies, for example, tend to diffuse
(scatter) IR and interfere with its transmission. Glossy or reflective
surfaces, such as mirrors and smooth walls, “bounce” (reflect) IR
and won’t interfere with its transmission. When placing the
Nº390S, it’s important to account for potential IR bounce and dif-
fusion. For example, in a room with thick carpeting, heavy
draperies, and many pieces of furniture, you may need to place
the Nº390S closer to where you’ll normally operate the Remote
Control than you would in a sparsely furnished room with bare
walls and hardwood flooring.
Optimum IR Reception If possible, install the Nº390S directly opposite from where you’ll
Window normally operate the Remote Control. In practice, the Remote
Control will operate the Nº390S at up to 30 degrees to either side
of this direct line. To either side of this line, successful IR
communication will depend on bounce and ambient lighting.
(Please refer to the diagram at the left).
If the requirements of your installation preclude a clean line of
sight between the Nº390S and your listening position, you may
want to consider using an infrared repeater to route the remote
control’s commands directly to the Nº390S, using the external ir
input on the rear panel. (See item #6 in Rear Panel, Nº390S.) Please
ask your dealer for more information on third-party IR repeaters.