Sennheiser SZI 1015-T manual Impact of Curtains, Carpets and Paints, Impact of Extraneous Light

Impact of Curtains, Carpets and Paints

•Dark, heavy material, curtains, carpets, panellings and wall coverings tend to absorb IR light. Good reception is only possible in direct line-of-sight.

•Roughcast and strongly structured wallpapers (such as woodchip, embossed or fabric papers) reflect the light unevenly but allow a more uniform propagation of the infra-red signal.

•Smooth and bright walls, smooth tiled floors and mirrors are highly reflective and therefore favour the propagation of infra-red light.

•Different wall paints may reflect infra-red light differently although they have the same colour. This is due to the type and composition of the paint pigmentation.

The power necessary to cover a given room varies accordingly.

Impact of Extraneous Light

Daylight and artificial light also have an impact on the IR reception. Their spectra contain infra- red portions which may interfere with the useful signal of the SZI 1015-T. At worst, the reception is disturbed by hissing noise.

ExtraneousFremdlichtlight

IR lightIR-Licht

ExtraneousFremdlichtlight

IR lightIR-Licht

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