Sigfox WSSFCB-NH3, User Manual

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The RF transmit power will be automatically set as the max value as allowed by the Zone.
Sigfox Radio Configuration (RC) defines the radio parameters in which the device shall operate: Sigfox operating
frequencies, output power, spectrum access mechanism, throughput, coexistence with other radio technologies, etc.
Each radio configuration includes 4 uplink classes: 0u, 1u, 2u, and 3u.
The Sigfox network globally works within the ranges from 862 to 928 MHz. But not all RCs require such a wide range of
operation.
RC1 RC2 RC3 RC4 RC5 RC6 RC7
Uplink center frequency
(MHz)
868.130 902.200 923.200 920.800 923.300 865.200 868.800
Downlink center
frequency (MHz)
869.525 905.200 922.200 922.300 922.300 866.300 869.100
Uplink data rate (bit/s) 100 600 100 600 100 100 100
Downlink data rate (bit/s)
600 600 600 600 600 600 600
Sigfox recommended
EIRP (dBm)
16 24 16 24 14 16 16
Specifics
Duty cycle
1% * Frequency
hopping ** Listen Before
Talk *** Frequency
hopping ** Listen Before
Talk *** Duty cycle
1% *
* Duty cycle is 1% of the time per hour (36 seconds). For an 8 to 12 bytes payload, this means 6 messages per hour,
140 per day.
** Frequency hopping: The device broadcasts each message 3 times on 3 different frequencies. Maximum On time
400 ms per channel. No new emission before 20 s.
*** Listen Before Talk: Devices must verify that the Sigfox-operated 200 kHz channel is free of any signal stronger
than −80 dBm before transmitting.
Sigfox’s high limit EIRP recommendation is included in each column although regulations sometimes allow for more
radiated power than the Sigfox recommendation.
Sigfox’s recommendation is set to comply with the Sigfox technological approach of:
Low current consumption
Balanced link budget between uplink and downlink communication
5.1 RC technical details