cias CORAL-S, Руководство по установке

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©
CIAS Elettronica S.r.l. Ed. 1.2
Installation Handbook
page
31
of
55 CORAL-S
2.2 Number of Sections
Before the installation, we have to think about how to install the system.
Therefore, remember that it’s always preferable to install a even number of section. This because
in a close perimeter which is made of an odd number of sections it’s present one corner where
there are one Transmitter and one Receiver which can produce an interference between
themselves.
In figure 1a the angle between the two heads Tx and Rx is correct, but the two heads are too
closed ono to the other, and the Transmitter in front to this Rx head is too far, so the spurious
signal coming from the close transmitter may be high compared to the its own. In fig 1c the angle
between the two heads Tx and Rx is more than 90° and this is wrong. In addition these two
heads are too close one to the other.
CORRECT
CO T RREC
WRONG WRONG
WRONG WRONG
Fig.1a Fig.1d
BEST
BEST
CORRECT
C T ORREC
Fig.1b Fig.1e
GOOD
GOOD
Fig.1c
Fig.1f
Figure 1