Best Practices For Wireless Communication; Indoor Thermo-Hygrometer-Barometer Transmitter (Optional Wh32B); Indoor / Outdoor 8-Channel Thermo-Hygrometer Transmitter (Optional Wh31B) - Ambient Weather OBSERVER WS-1550-IP User Manual

level, the rain gauge, UV and solar radiation sensors will not measure properly.
Note: If you cannot read the bubble level due to mounting constraints, place straddle a line or ruler level across
the top of the rain gauge for easier viewing.
5.3.7.1 Aligning the Wind Direction
Locate the four wind vane compass rose indicators of N, E, S, W (representing North, East, South and West) at the base
of the wind vane. Align the compass rose direction upon final installation with a compass or GPS.

5.4 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 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
Glass (untreated)
Plastics
Wood
Brick
Concrete
Metal

5.5 Indoor Thermo-Hygrometer-Barometer Transmitter (Optional WH32B)

The indoor thermometer, hygrometer and barometer measures and displays the indoor temperature, humidity and
pressure and transmits this data to the ObserverIP receiver.
Note: Do not install the thermo-hygrometer-barometer transmitter outside. This will cause errors in the barometric
pressure due to large variations in temperature (barometric pressure is temperature compensated for accuracy). Note
that pressure readings made inside your home, business, or facility will correspond closely to the actual barometric
pressure outside.
Note: The thermo-hygrometer-transmitter transmits directly to the ObserverIP receiver. For best results, place
between 5 to 20 feet from the ObserverIP receiver.
Note: To avoid permanent damage, please take note of the battery polarity before inserting the batteries.
Remove the battery door on the back of the sensor by sliding off the battery door. Insert two AA batteries as shown in
Figure 2, and close the battery door. Note that the temperature, humidity and barometer will be displayed on the LCD
display.
5.6 Indoor / Outdoor 8-Channel Thermo-Hygrometer Transmitter (Optional
Version 1.4 ©Copyright 2019, Ambient LLC. All Rights Reserved.
RF Signal Strength Reduction
5-15%
10-15%
10-40%
10-40%
40-80%
90-100%
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