Sainlogic SC-07 User Manual page 5

3. Weather Station Installation
3.1 Best Practices for Wireless Communication
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 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(100m) line of sight
(no interference, barriers or walls) but typically you will get 100 feet(30m)
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
Glass (untreated)
Plastics
Wood
Brick
Concrete
Metal
Figure 4
RF Signal Strength Reduction
90-100%
5
5-15%
10-15%
10-40%
10-40%
40-80%