ALDI Sempre GT-WS-10s Operating Instructions Manual page 28

Devices, such as televisions, cordless telephones, computers and neon tubes can
also disrupt the radio reception.
Do not place the base station and radio sensor directly on the ground. This limits
the range.
At low temperatures during the winter, the performance of the radio sensor
batteries can fall significantly. This reduces the transmission range.
Depending on your location, in rare cases, it can occur that the base station may
receive signals from another time signal transmitter or even alternately from two
time signal transmitters. This is not a device fault. In this case, change the location
of the base station.
Regarding the radio reception between the time signal transmitter and the base
station, please note the following points:
Preferably set up the base station near a window.
Keep a distance to televisions, PCs and monitors. Base stations of cordless
telephones should also not be in the direct vicinity of the weather station.
Reception is usually better during the night. If the alarm clock should not have any
reception during the daytime, it could be that the signal will immediately be
received at night and at full strength.
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