Title: MAN 266, GTecLink Data loggers User Manual
Rev 1.0.1
Page 18 of 32
Radio signal coverage performed at the end of the datalogger setup (using the Setup
wizard).
3.7 Test Results Interpretation
The results displayed are listed for each Spreading Factor (SF). The
SF represents a way of modulating data.
The lower the SF number is, the shorter the message; thus, more
messages can be sent on the network.
The SF is proportional t o the distance between the data logger and
gateway: higher SFs are capable of transmitting data at higher
distances, while lower SFs reach lower distances.
During the radio signal coverage test, the data logger sends five or 10
data packages at SF7 to SF12.
The number o f data packages that reach the gateway can be viewed
in the results in order to ensure correct communication.
A coverage test is considered correct if any of the SFs available on the
network are able to deliver at least half of the packages sent.
Note: Performing the Radio signal coverage test takes approximately 2
minutes.
Note: Radio Australia 500MHz works differently. See the wireless radio
section in the Gateway User Guide.
