diff --git a/Globals.h b/Globals.h
index 2bd31ee..4c26f07 100644
--- a/Globals.h
+++ b/Globals.h
@@ -47,8 +47,8 @@ enum MMDVM_STATE {
 #include "P25TX.h"
 #include "Debug.h"
 
-const uint16_t TX_RINGBUFFER_SIZE = 100U;
-const uint16_t RX_RINGBUFFER_SIZE = 120U;
+const uint16_t TX_RINGBUFFER_SIZE = 256U;
+const uint16_t RX_RINGBUFFER_SIZE = 256U;
 
 extern MMDVM_STATE m_modemState;
 extern MMDVM_STATE m_modemState_prev;