Jay electronique Orion, Installation And User Technical Manual

Page: 103 / 176

- 103 -
Orion
- 324501G
DE FR EN
8.6- Receiver and antenna positions
The industrial receivers ORRS - ORRA should be mounted as close as
possible to the control cabinet and should be sheltered from shocks and
weather.
Metal
Metal
Metal
OK OK Wrong OK
metal
cabinet
metal
cabinet
Wrong
As a general rule :
 Since the UHF waves will go through metal barriers, the antenna must
not be placed in an enclosure forming a shield (metal cabinet, wall
made of reinforced concrete, metal framework or wall, etc.).
 Any obstacle located between the transmitter and the antenna will
result in a loss of range.
 Insofar as possible, the antenna should :
• be placed as near as possible to the point of transmission,
• be pointed downward, upward or horizontally, knowing that the best
radio lobe is indicated on the above diagrams.
• be oriented to have a direct line of sight or a minimum number of
obstacles between the transmission and reception points.
It must never cross through a wall, not even an insulating wall.
 Note that the best range is obtained by tilting the transmitter as
indicated in the diagram below :
Transmitter
Receiver