diff --git a/sw/airborne/boards/apogee/chibios/v1.0/board.h b/sw/airborne/boards/apogee/chibios/v1.0/board.h
index 57b38123c6..d04e5a743d 100644
--- a/sw/airborne/boards/apogee/chibios/v1.0/board.h
+++ b/sw/airborne/boards/apogee/chibios/v1.0/board.h
@@ -912,8 +912,8 @@
 /**
  * PPM radio defines
  */
-#define RC_PPM_TICKS_PER_USEC 6
-#define PPM_TIMER_FREQUENCY 6000000
+#define RC_PPM_TICKS_PER_USEC 2
+#define PPM_TIMER_FREQUENCY 2000000
 #define PPM_CHANNEL ICU_CHANNEL_1
 #define PPM_TIMER ICUD1