Swisscom B593 Démarrage Rapide page 52

Note:
During thunderstorms and rainy weather, turn off and disconnect the CPE.
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When the CPE is in use, you can alter its position or orientation to improve signal
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reception.
Use a standard or authorized external antenna to avoid CPE malfunctions.
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Selecting the Installation Environment
Obstacles such as concrete and wooden walls will affect the transmission of the network
signal. It is recommended that when you install CPE you choose an open space.
Keep the CPE away from equipment that generates strong magnetic and electric fields, for
instance microwaves, refrigerators, and satellite receivers.
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