Site Selection - Microwave Data Systems MDS 9810 Installation And Operation Manual

8 MDS 9810 Installation and Operation Guide
Figure 9 shows a typical remote station arrangement. At a remote sta-
tion, a directional antenna is normally used, and a Remote Terminal Unit
(RTU) or other telemetry equipment replaces the host computer nor-
mally used in a master station.
13.8 VDC
POWER
CABLE
Figure 9. Typical Remote Station Arrangement

3.2 Site Selection

For a successful installation, careful thought must be given to selecting
proper sites for the master and remote stations. Suitable sites should pro-
vide:
• Protection from direct weather exposure
• A source of adequate and stable primary power
• Suitable entrances for antenna, interface or other required
cabling
• Antenna location that provides an unobstructed transmission
path in the direction of the associated station
These requirements can be quickly determined in most cases. A possible
exception is the last item—verifying that an unobstructed transmission
path exists. Radio signals travel primarily by line-of-sight, and obstruc-
tions between the sending and receiving stations will affect system per-
formance. If you are not familiar with the effects of terrain and other
obstructions on radio transmission, the discussion below will provide
helpful background.
Invisible place holder
REMOTE TERMINAL
UNIT
REMOTE RADIO
13.8 VDC
POWER
SUPPLY
ANTENNA SYSTEM
(Directional Type
Normally Used)
LOW-LOSS FEEDLINE
s
( )
MDS 05-3301A01, Rev. C