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Sigfox Verified

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Device managementPrinciples

Link Quality: general knowledge

There are several ways to interpret the quality of a signal:

  • Signal to Noise Ratio (SNR)
  • Received Signal Strength Indicator (RSSI)

SIGFOX provides a Link Quality indicator based on:

  • RSSI
  • Number of stations that received a message (receiver redundancy)

 

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

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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