Receiver Operation
5
5-2
NOTE:
Figure 5-2. Mounting
5.1.2 Installation
When installing your receiver it is important to position your device in such a
way as to optimize the antenna location within what’s known as the “Fresnel
Zone”.
The Fresnel Zone can be thought of as a football-shaped invisible tunnel between
two locations that provides a path for RF signals between your connector/
transmitter and your receiver
Figure 5-3. Installation
In order to achieve maximum range, the football-shaped path in which radio
waves travel must be free of all obstructions. Obstacles in the path (especially
metal) will decrease the communication range between your connector/
transmitter and receiver. Also, If the antennas are mounted just barely off the
ground, over half of the Fresnel zone ends up being obstructed by the earth
resulting in significant reduction in range. To avoid this problem, the antennas
should be mounted high enough off of the ground so that the earth does not
interfere with the central diameter of the Fresnel zone.
It is important to understand that the environment may change over time due to new
equipment or machinery being installed, building construction, etc. If new obstacles exist
between your connector/transmitter and receiver, the devices can be raised on one end
or on both ends to hopefully clear the Fresnel Zone of obstructions.
®
TX
PWR
MWTC SERIES
WIRELESS RECEIVER
23 (0.87)
3.2 (0.125) DIA.
2 PLACES
79 (3.12)
DIMENSIONS mm (in)
FRESNEL ZONE
®
TX
WIRELESS THERMOCOUPLE CONNECTOR
TC
–
+
MWTC
LOW
BATT
PRESS
SETUP
PRESS
I / O
TYPE
®
TX
PWR
MWTC SERIES
WIRELESS RECEIVER
