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
6.1 RC technical details
