diff --git a/radio/src/FreeRTOSConfig.h b/radio/src/FreeRTOSConfig.h
index 023d5c49a..4ae31c3ae 100644
--- a/radio/src/FreeRTOSConfig.h
+++ b/radio/src/FreeRTOSConfig.h
@@ -29,8 +29,9 @@
 #define configCPU_CLOCK_HZ              ( SystemCoreClock )
 #define configTICK_RATE_HZ              ( ( TickType_t ) 1000 )
 #define configMAX_PRIORITIES            ( 5 )
-#define configMINIMAL_STACK_SIZE        ( ( unsigned short ) 130 )
-//#define configTOTAL_HEAP_SIZE           ( ( size_t ) ( 75 * 1024 ) )
+#define configMINIMAL_STACK_SIZE        ( ( unsigned short ) 30 )
+// static memory is used instead
+// #define configTOTAL_HEAP_SIZE           ( ( size_t ) ( 75 * 1024 ) )
 #define configUSE_16_BIT_TICKS          0
 #define configIDLE_SHOULD_YIELD         1
 // Use notifications
@@ -39,13 +40,13 @@
 #define configUSE_RECURSIVE_MUTEXES     0
 #define configUSE_MALLOC_FAILED_HOOK    0
 #define configUSE_APPLICATION_TASK_TAG  0
-#define configUSE_COUNTING_SEMAPHORES   0 // 1 rco: save some memory?
+#define configUSE_COUNTING_SEMAPHORES   0
 #define configGENERATE_RUN_TIME_STATS   0
 #define configUSE_TIMERS                0
 
 #if !defined(DEBUG)
-  #define configMAX_TASK_NAME_LEN         1
-  #define configUSE_TRACE_FACILITY        0 // 1 rco: save some memory?
+  #define configMAX_TASK_NAME_LEN         4
+  #define configUSE_TRACE_FACILITY        0
   #define configCHECK_FOR_STACK_OVERFLOW  0
 #else
   #define configMAX_TASK_NAME_LEN         10