Sennheiser 503125 Home Security System User Manual


 
21
Cleaning the diversity receiver
Cleaning the diversity receiver
̈ Use a cloth to clean the diversity receiver from time to time.
Recommendations and tips
CAUTION! Liquids can damage the electronics of the receiver!
Liquids entering the housing of the device can cause a
short-circuit and damage the electronics.
̈ Keep all liquids away from the receiver.
̈ Do not use any solvents or cleansing agents.
... for the diversity receiver
Make sure that the antenna and the line cable do not cross.
For best results, make sure that the transmitter sensitivity is correctly
adjusted.
... for optimum reception
Transmission range depends to a large extent on location and can vary
from about 10 m to about 150 m. There should be a “free line of sight”
between transmitting and receiving antennas.
To avoid overloading the receiver, observe a minimum distance of 5 m
between transmitting and receiving antennas.
... for multi-channel operation
When operating a multi-channel system, you should only use the chan-
nels within one frequency bank. Each of the frequency banks “1” to
20” accommodates factory-preset frequencies which are intermodu-
lation-free.
The frequency bank “U” allows you to freely select and store receiving
frequencies (see page 16).
When using several transmitters simultaneously, interference can be
avoided by maintaining a minimum distance of 20 cm between two
transmitters.