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communication between sensor package and console, try turning off these other devices
for troubleshooting purposes. You may need to relocate the transmitters or receivers to
avoid the interference and establish reliable communication. The frequencies used by the
sensors are one of (depending on your location): 433, 868, or 915 MHz (915 MHz for
United States).
Line of Sight Rating.
This device is rated at 300 feet line of sight (under ideal
circumstances; no interference, barriers or walls), but in most real-world scenarios,
including a wall or two, you will be able to go about 100 feet.
Metal Barriers.
Radio frequency will not pass through metal barriers such as aluminum
siding or metal wall framing. If you have such metal barriers and experience communication
problems, you must change the placement of sensor package and or console.
The following table shows different transmission media and expected signal strength reductions.
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%
Table: RF Signal Strength reduction
3.7 Console Display
See 6 to help you identify elements of the console’s display screen.
Figure 16: Display Console Screen Layout
