Proposals For More Reliable Radio Link - Satel SATELLINE M3-TR3 Integration Manual

Transceiver modules

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9 PROPOSALS FOR MORE RELIABLE RADIO LINK

In case where the environment is challenging the following methods can be used for improving

the transmission reliability:

 Forward Error Correction, FEC, is recommend to use in challenging environment like

urban areas.

 Directional antennas.

 Before building the radio link(s) it is highly recommend that the radio environment is

measured to find out whether the radio environment is clean enough by using a

spectrum analyzer or radio module's RSSI, Received Signal Strength Indication, value.

 Co-operation with the local authority to find out the optimum free radio channel.

 If the channel is disturbed an external band-pass filter can be used for improving the

filtering.

 If at the adjacent channel is TDMA, Time Domain Multiple Access, it is recommended

to use time slot for receiving which is not in synchronization with the TDMA radio

transmission.

 In Europe it is not recommended to use channels which are located near by the TETRA

or television frequencies.

SATELLINE-M3-TR3

and –TR4

Integration Guide, Version 2.1

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Satelline m3-tr4