diff --git a/include/grgsm/qa_utils/burst_source.h b/include/grgsm/qa_utils/burst_source.h
index e74a8aa..2f249ad 100644
--- a/include/grgsm/qa_utils/burst_source.h
+++ b/include/grgsm/qa_utils/burst_source.h
@@ -54,6 +54,7 @@
       virtual void set_framenumbers(const std::vector<int> &framenumbers) = 0;
       virtual void set_timeslots(const std::vector<int> &timeslots) = 0;
       virtual void set_burst_data(const std::vector<std::string> &burst_data) = 0;
+      virtual void set_arfcn(uint16_t arfcn) = 0;
     };
 
   } // namespace gsm