Yes. Even if the REPEATER can work without being declared on the network, we advise you to declare your REPEATER on the Sigfox Backend. 

The declaration on the Backend allows to verify that REPEATER is working properly thanks to the network indicators, the Repeater statistics and thanks to the content of the daily frame sent by the REPEATER.

Furthermore, we inform you that if the REPEATER is not declared, no support will be provided by adeunis.