JUMO 902930 Wtrans Transmitter RTD Temperature Probe with Ex approval Operating Manual - Manual (Page 32)

4 Transmitter Range
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4.2 Impairment of radio transmission
Collisions when using too many transmitters
When using a large number of transmitters, do not select a transmission interval which is too
low as otherwise the radio frequency will be unnecessarily occupied. A transmission interval
that is too low leads to a very high data volume on the selected frequency which can lead to
collisions with other transmitters. The collision can cause telegrams to be destroyed during ra-
dio transmission.
Figure 7: The telegrams of a transmitter reach the receiver without collisions.
Figure 8: Telegrams of several transmitters can collide.