diff --git a/main.c b/main.c
index 13baee9..bed1bc5 100644
--- a/main.c
+++ b/main.c
@@ -69,7 +69,7 @@
 #define CONFIG_GPS_SOLUTION_IS_MANDATORY NO
 #define CONFIG_GPS_RELY_ON_PAST_SOLUTION NO
 #define CONFIG_SCHEDULE_SKIP_SLOT_COUNT 5
-#define CONFIG_WSPR_DIAL_FREQUENCY 24926000UL // 28126000UL //7040000UL
+#define CONFIG_WSPR_DIAL_FREQUENCY 18106000UL //24926000UL // 28126000UL //7040000UL
 #define CONFIG_CALLSIGN "R2BDY"
 #define CONFIG_LOCATOR4 "KO85"