diff --git a/main.h b/main.h
index 515ec791..1903cfee 100644
--- a/main.h
+++ b/main.h
@@ -90,6 +90,8 @@ static int init_rf();
 extern int Encode_8b10b[][256];
 void program_radio();
 void read_adc(); 
+void init_read_adc(); 
+void read_adc_process(int sig_num);
 
 int socket_open = 0;
 int sock = 0;