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16. Tips and notes
Ranges and interference
• The FS20 wireless control system works in the 868MHz range, which is also used by other
radio services. Therefore devices that operate on the same or neighbouring frequency may
restrict both its operation and its range.
• The specified range of up to 100m is the free-field range, which means the range with visual
contact between the transmitter and receiver. In practice, however, walls, ceilings, etc.
between the transmitter and the receiver may affect and reduce the range.
Other causes of reduced ranges:
• All types of high-frequency interference
• Any buildings or vegetation
• Conductive metal parts that are located near the devices or within or near their transmission
path, for example, radiators, metallised insulation glass windows, reinforced concrete
ceilings, etc.
• Influence on the radiation pattern of antennas due to the distance from the transmitter or
receiver to conductive surfaces or objects (also to human bodies or the ground)
• Broadband interference in urban areas that reduces the signal-to-noise ratio; the signal is
no longer recognised due to this 'noise'
• Interference radiation resulting from insufficiently shielded electronic devices, for example,
operating computers or similar
17. Declaration of conformity (DOC)
We, Conrad Electronic, Klaus-Conrad-Straße 1, D-92240 Hirschau (Germany), hereby de-
clare that this product complies with the fundamental requirements and other relevant
regulations of directive 1999/5/EG.
You can find the declaration of conformity for this product at www.conrad.com
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