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Device managementPrinciples

Link Quality: general knowledge

SIGFOX provides a Link Quality indicator based on:

  • Received Signal Strength Indicator (RSSI)
  • Number of stations that received a message (receiver redundancy)
  • RC zone, due to the difference between the RCs (see Radio Configuration)


 For zones RC1, RC3 and RC5:

RSSINumber of basestationLink Quality indicator
-122dBm < RSSI3EXCELLENT
-135dBm < RSSI -122dBm3GOOD
-122dBm < RSSI1 or 2GOOD
-135dBm < RSSI -122dBm1 or 2AVERAGE
RSSI -135dBmanyLIMIT

For zones RC2 and RC4:

RSSINumber of basestationLink Quality indicator
-114dBm < RSSI3EXCELLENT
-127dBm < RSSI -114dBm3GOOD
-114dBm < RSSI1 or 2GOOD
-127dBm < RSSI -114dBm1 or 2AVERAGE
RSSI -127dBmanyLIMIT

SNR

Note : Sigfox does not recommend to use the SNR as an indicator of the quality of signal. Only refer to RSSI which is an objective indicator. 

 

 

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