Tycon Power Systems TP3000WC Operation Manual page 12

Wireless communication is susceptible to interference, distance, walls,
and metal barriers. We recommend the following best practices for
trouble-free wireless communications.
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 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 or tinted windows. 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 or Tinted Glass
8000060 Rev 3 19-Feb-19
RF Signal Strength Reduction
5-15%
10-15%
10-40%
10-40%
40-80%
90-100%
12 TyconSystems.com