User's Manual

5.5 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 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 .
5.6 Adjustment or Calibration
Note: The calibrated value can only be adjusted on the console. The
remote sensor(s) always displays the un-calibrated or measured value.
Note: The measured humidity range is between 10 and 99%. Humidity
cannot be accurately measured outside of this range. Thus, the humidity cannot
be calibrated below 10% or above 99%.
The purpose of calibration is to fine tune or correct for any sensor error
associated with the devices margin of error. The measurement can be adjusted
from the console to calibrate to a known source.
Calibration is only useful if you have a known calibrated source you can
compare it against, and is optional. This section discusses practices,
procedures and sources for sensor calibration to reduce manufacturing
and degradation errors. Do not compare your readings obtained from
sources such as the internet, radio, television or newspapers. They are in
a different location and typically update once per hour.
The purpose of your weather station is to measure conditions of your
surroundings, which vary significantly from location to location.
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