Bosch INTEGRUS Specifications download pdf (Page 11)

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System Description and Planning | 7

Figure 5: Total coverage area of LBB 4511/00, LBB 4512/00 and

LBB 3410/05 for 1 to 8 carriers

Figure 6: Polar diagram of the radiation pattern for 1, 2, 4 and 8 carriers

The cross section of the 3-dimensional radiation pattern

with the floor of the conference venue is known as the

footprint (the white area in figure 7 to figure 9). This is the

floor area in which the direct signal is strong enough to

ensure proper reception, when the receiver is directed

towards the radiator. As shown, the size and position of the

footprint depends on the mounting height and angle of the

radiator.

Figure 7: The radiator mounted at 15° to the ceiling

Figure 8: The radiator mounted at 45° to the ceiling

Figure 9: The radiator mounted perpendicular (at 90°) to the ceiling

Ambient lighting

The Integrus system is practically immune for the effect of

ambient lighting. Fluorescent lamps (with or without

electronic ballast or dimming facility), such as TL lamps or

energy saving lamps give no problems with the Integrus

system. Also sunlight and artificial lighting with

incandescent or halogen lamps up to 1000 lux give no

problems with the Integrus system. When high levels of

artificial lighting with incandescent or halogen lamps, such

as spotlights or stage lighting are applied, you should

directly point a radiator at the receivers in order to ensure

reliable transmission. For venues containing large,

unscreened windows, you must plan on using additional

radiators. For events taking place in the open air a site test

will be required in order to determine the required amount

of radiators. With sufficient radiators installed, the receivers

will work without errors, even in bright sunlight.

Objects, surfaces and reflections

The presence of objects in a conference venue can influence

the distribution of infra-red light. The texture and color of

the objects, walls and ceilings also plays an important role.

Infra-red radiation is reflected from almost all surfaces. As is

the case with visible light, smooth, bright or shiny surfaces

reflect well. Dark or rough surfaces absorb large proportions

of the infra-red signal (see figure 10). With few exceptions it

cannot pass through materials that are opaque to visible

light.

LBB 4511/00

LBB 4512/00

LBB 3410/05

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 45 46

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Bosch INTEGRUS Specifications Page 11

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