Radio Signal Transfer Problems; Communication Test - Arexx ALARM UNIT TL-ALU9 Anleitung

5.3. Radio signal transfer problems

The receiver system is missing signals from one or more sensors, or only
receiving a limited number of signals.
Potential problems:
- Walls or ceilings between sensor and receiver may contain
metallic constructions.
- Sensors and/or receiver may is located on or by a metallic surface
- Sensors and/or receiver are situated in locations with high humidity
- Windows between sensor and receiver may contain several layers
of shielding materials or may be covered by humid moisture.
- Other 433MHz systems may be working within the 20m
operating range
E
- Interference or jamming signals from radio or TV transmitters
- Electronic or electrical equipment (eg. computer equipment or
N
magnetrons), operating within the 2-5m operating range
- Low power level of the sensor's batteries (see 2)
G
Suggested solutions:
L
- Modify the locations of the sensor and/or the receiver
- Remove the interfering equipment
I

5.3.2. Communication test

S
A simple test will check the communication channel between sensor and
receiver:
H
1. Remove the batteries from the sensor
2. Locate the sensor at ca. 1 m distance to the receiver
3. Insert the batteries in the sensor
4. A correctly working system will show the according sensor entry
to the sensor list within 5 seconds.
Extra information and possible updates can be found on
www.arexx.com (on the forum or through the Temp Logger menu).
Further questions can also be put on our forum;
www.arexx.com
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