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Figure 10
3.7 Best Practices for Wireless Communication
Note:
To ensure proper communication, mount the remote sensor(s) upright
on a vertical surface, such as a wall.
Do not lay the sensor flat.
Wireless communication is susceptible to interference, distance, walls and
metal barriers. We recommend the following best practices for trouble free
wireless communication.
1.
Electro-Magnetic Interference (EMI)
. Keep the console several feet
away from computer monitors and TVs.
2.
Radio Frequency Interference (RFI).
If you have other 433/868/915
MHz devices and communication is intermittent, try turning off these
other devices for troubleshooting purposes. You may need to relocate
the transmitters or receivers to avoid intermittent communication.
3.
Line of Sight Rating.
This device is rated at 300 feet line of sight (no
interference, barriers or walls) but typically you will get 100 feet
maximum under most real-world installations, which include passing
through barriers or walls.
4.
Metal Barriers.
Radio frequency will not pass through metal barriers
such as aluminum siding. If you have metal siding, align the remote and
console through a window to get a clear line of sight.
The following is a table of reception loss vs. the transmission medium.
Each “wall” or obstruction decreases the transmission range by the factor
shown below.
Medium
RF Signal Strength Reduction
Glass (untreated)
5-15%
Plastics
10-15%
Wood
10-40%
Brick
10-40%
Concrete
40-80%
Metal
90-100%
